test_tasks/ffmpeger
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Configuration loading and NATS messaging tests.

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This commit is contained in:
Stanislav Nikitin 2019-05-19 14:41:03 +05:00
parent 1839a73717
commit 2e747d51ef
No known key found for this signature in database
GPG Key ID: 106900B32F8192EE
35 changed files with 8575 additions and 18 deletions
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28
Gopkg.lock generated
View File

@ -1,6 +1,14 @@
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
[[projects]]
digest = "1:ffe9824d294da03b391f44e1ae8281281b4afc1bdaa9588c9097785e3af10cec"
name = "github.com/davecgh/go-spew"
packages = ["spew"]
pruneopts = "UT"
revision = "8991bc29aa16c548c550c7ff78260e27b9ab7c73"
version = "v1.1.1"
[[projects]]
digest = "1:95837473f879ea39a76b82c43c7badf93a4b27b2d5654182ec3d1728f8ebec30"
name = "github.com/nats-io/go-nats"
@ -36,6 +44,25 @@
revision = "4b96681fa6d28dd0ab5fe79bac63b3a493d9ee94"
version = "v1.0.1"
[[projects]]
digest = "1:0028cb19b2e4c3112225cd871870f2d9cf49b9b4276531f03438a88e94be86fe"
name = "github.com/pmezard/go-difflib"
packages = ["difflib"]
pruneopts = "UT"
revision = "792786c7400a136282c1664665ae0a8db921c6c2"
version = "v1.0.0"
[[projects]]
digest = "1:5da8ce674952566deae4dbc23d07c85caafc6cfa815b0b3e03e41979cedb8750"
name = "github.com/stretchr/testify"
packages = [
"assert",
"require",
]
pruneopts = "UT"
revision = "ffdc059bfe9ce6a4e144ba849dbedead332c6053"
version = "v1.3.0"
[[projects]]
branch = "master"
digest = "1:d5891c5bca9c62e5d394ca26491d2b710a1dc08cedeb0ca8f9ac4c3305120b02"
@ -60,6 +87,7 @@
analyzer-version = 1
input-imports = [
"github.com/nats-io/nats.go",
"github.com/stretchr/testify/require",
"gopkg.in/yaml.v2",
]
solver-name = "gps-cdcl"

10
cmd/ffmpeger/ffmpeger.go
View File

@ -23,8 +23,14 @@ func main() {
flag.Parse()
config.Load()
nats.StartListening()
err := config.Load()
if err != nil {
log.Fatalln("Failed to load configuration file:", err.Error())
}
err1 := nats.StartListening()
if err1 != nil {
log.Fatalln("Failed to establish connection to NATS:", err1.Error())
}
converter.Start()
// CTRL+C handler.

5
cmd/send_example_message/send_example_message.go
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@ -45,7 +45,10 @@ func main() {
log.Fatalln("Failed to get absolute path for output filename:", err.Error())
}
config.Load()
err = config.Load()
if err != nil {
log.Fatalln("Failed to load configuration file:", err.Error())
}
nc, err := nats.Connect(config.Cfg.NATS.ConnectionString)
if err != nil {

99
config/config_test.go Normal file
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@ -0,0 +1,99 @@
package config
import (
// stdlib
"flag"
"io/ioutil"
"os"
"os/user"
"strings"
"testing"
// other
"github.com/stretchr/testify/require"
)
const (
testConfig = `nats:
connection_string: "nats://127.0.0.1:14222"`
testConfigBad = `nats
connection_string: "nats://127.0.0.1:14222"`
testConfigPath = "/tmp/ffmpeger-test-config"
)
func TestConfigPackageInitialization(t *testing.T) {
Initialize()
require.Empty(t, configPathRaw)
}
func TestConfigFileLoad(t *testing.T) {
flag.CommandLine = flag.NewFlagSet("ffmpeger-test-config-load", flag.ExitOnError)
Initialize()
err := ioutil.WriteFile(testConfigPath, []byte(testConfig), os.ModePerm)
if err != nil {
t.Fatal("Failed to write test config file:", err.Error())
}
configPathRaw = testConfigPath
err1 := Load()
require.Nil(t, err1)
require.NotEmpty(t, Cfg.NATS.ConnectionString)
require.Equal(t, "nats://127.0.0.1:14222", Cfg.NATS.ConnectionString)
}
func TestConfigFileLoadWithoutFilePath(t *testing.T) {
flag.CommandLine = flag.NewFlagSet("ffmpeger-test-config-load", flag.ExitOnError)
Initialize()
err := Load()
require.NotNil(t, err)
require.Empty(t, Cfg.NATS.ConnectionString)
}
func TestConfigFileLoadWithoutConfigItself(t *testing.T) {
flag.CommandLine = flag.NewFlagSet("ffmpeger-test-config-load", flag.ExitOnError)
Initialize()
configPathRaw = "/tmp/nonexistant"
err := Load()
require.NotNil(t, err)
require.Empty(t, Cfg.NATS.ConnectionString)
}
func TestConfigFileLoadBadConfigFile(t *testing.T) {
flag.CommandLine = flag.NewFlagSet("ffmpeger-test-config-load", flag.ExitOnError)
Initialize()
err := ioutil.WriteFile(testConfigPath, []byte(testConfigBad), os.ModePerm)
if err != nil {
t.Fatal("Failed to write test config file:", err.Error())
}
configPathRaw = testConfigPath
err1 := Load()
require.NotNil(t, err1)
require.Empty(t, Cfg.NATS.ConnectionString)
}
func TestConfigFileLoadWithTilde(t *testing.T) {
flag.CommandLine = flag.NewFlagSet("ffmpeger-test-config-load", flag.ExitOnError)
Initialize()
// Sorry, this test isn't supposed to be run on Windows. Patches
// welcome, until don't even try to whine :).
tildeConfigPath := "~/.cache/ffmpeger-test-config"
u, err := user.Current()
if err != nil {
t.Fatal("Failed to get current user:", err.Error())
}
tildeConfigPathToWrite := strings.Replace(tildeConfigPath, "~", u.HomeDir, 1)
err1 := ioutil.WriteFile(tildeConfigPathToWrite, []byte(testConfigBad), os.ModePerm)
if err1 != nil {
t.Fatal("Failed to write test config file:", err1.Error())
}
configPathRaw = tildeConfigPath
err2 := Load()
require.NotNil(t, err2)
require.Empty(t, Cfg.NATS.ConnectionString)
}

21
config/exported.go
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@ -2,6 +2,7 @@ package config
import (
// stdlib
"errors"
"flag"
"io/ioutil"
"log"
@ -22,13 +23,15 @@ var (
func Initialize() {
log.Println("Initializing configuration...")
flag.StringVar(&configPathRaw, "conf", "", "Path to configuration file, should be absolute.")
flag.StringVar(&configPathRaw, "conf", "", "Path to configuration file.")
Cfg = &Config{}
}
// Load loads configuration into memory and parses it into Config struct.
func Load() {
func Load() error {
if configPathRaw == "" {
log.Fatalln("No configuration file path defined! See '-h'!")
return errors.New("No configuration file path defined! See '-h'!")
}
log.Println("Loading configuration from file:", configPathRaw)
@ -37,7 +40,8 @@ func Load() {
if strings.Contains(configPathRaw, "~") {
u, err := user.Current()
if err != nil {
log.Fatalln("Failed to get current user's data:", err.Error())
// Well, I don't know how to test this.
return errors.New("Failed to get current user's data: " + err.Error())
}
configPathRaw = strings.Replace(configPathRaw, "~", u.HomeDir, 1)
@ -46,21 +50,22 @@ func Load() {
// Get absolute path to configuration file.
configPath, err := filepath.Abs(configPathRaw)
if err != nil {
log.Fatalln("Failed to get real configuration file path:", err.Error())
// Can't think of situation when it's testable.
return errors.New("Failed to get real configuration file path:" + err.Error())
}
// Read it.
configFileData, err := ioutil.ReadFile(configPath)
if err != nil {
log.Fatalln("Failed to load configuration file data:", err.Error())
return errors.New("Failed to load configuration file data:" + err.Error())
}
// Parse it.
Cfg = &Config{}
err1 := yaml.Unmarshal(configFileData, Cfg)
if err1 != nil {
log.Fatalln("Failed to parse configuration file:", err1.Error())
return errors.New("Failed to parse configuration file:" + err1.Error())
}
log.Printf("Configuration file parsed: %+v\n", Cfg)
return nil
}

18
nats/exported.go
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@ -2,6 +2,7 @@ package nats
import (
// stdlib
"errors"
"log"
"sync"
@ -51,26 +52,26 @@ func messageHandler(msg *nats.Msg) {
}
// Shutdown unsubscribes from topic and disconnects from NATS.
func Shutdown() {
func Shutdown() error {
log.Println("Unsuscribing from NATS topic...")
err := natsSubscription.Unsubscribe()
if err != nil {
log.Println("ERROR unsubscribing", Topic, "topic:", err.Error())
return errors.New("ERROR unsubscribing " + Topic + " topic: " + err.Error())
}
if natsConn != nil {
log.Println("Closing connection to NATS...")
natsConn.Close()
} else {
log.Println("Connection to NATS wasn't established")
}
return nil
}
// StartListening connects to NATS and starts to listen for messages.
func StartListening() {
func StartListening() error {
nc, err := nats.Connect(config.Cfg.NATS.ConnectionString)
if err != nil {
log.Fatalln("Failed to connect to NATS:", err.Error())
return errors.New("Failed to connect to NATS:" + err.Error())
}
natsConn = nc
@ -81,7 +82,10 @@ func StartListening() {
// ffmpeger will receive this message!
sub, err1 := nc.Subscribe(Topic, messageHandler)
if err1 != nil {
log.Fatalln("Failed to subscribe to", Topic, "topic:", err1.Error())
return errors.New("Failed to subscribe to " + Topic + " topic: " + err1.Error())
}
natsSubscription = sub
log.Println("Subscribed to topic", Topic)
return nil
}

112
nats/nats_test.go Normal file
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@ -0,0 +1,112 @@
package nats
import (
// stdlib
"flag"
"testing"
// local
"github.com/pztrn/ffmpeger/config"
// other
"github.com/nats-io/nats.go"
"github.com/stretchr/testify/require"
)
func TestNATSInitialization(t *testing.T) {
Initialize()
require.NotNil(t, handlers)
require.Empty(t, handlers)
}
func TestNATSStartListeningAndShutdown(t *testing.T) {
flag.CommandLine = flag.NewFlagSet("ffmpeger-test-nats", flag.ExitOnError)
Initialize()
require.NotNil(t, handlers)
require.Empty(t, handlers)
config.Initialize()
config.Cfg.NATS.ConnectionString = "nats://127.0.0.1:14222"
err := StartListening()
require.Nil(t, err)
err1 := Shutdown()
require.Nil(t, err1)
}
func TestNATSShutdownWithoutConnection(t *testing.T) {
Initialize()
require.NotNil(t, handlers)
require.Empty(t, handlers)
err := Shutdown()
require.NotNil(t, err)
}
func TestNATSConnectToWrongAddress(t *testing.T) {
flag.CommandLine = flag.NewFlagSet("ffmpeger-test-nats", flag.ExitOnError)
Initialize()
require.NotNil(t, handlers)
require.Empty(t, handlers)
config.Initialize()
config.Cfg.NATS.ConnectionString = "nats://127.0.0.1:14223"
err := StartListening()
require.NotNil(t, err)
}
func TestNATSAddHandler(t *testing.T) {
d := func(data []byte) {}
Initialize()
require.NotNil(t, handlers)
require.Empty(t, handlers)
hndl := &Handler{
Name: "testhandler",
Func: d,
}
AddHandler(hndl)
}
func TestNATSReceiveMessage(t *testing.T) {
flag.CommandLine = flag.NewFlagSet("ffmpeger-test-nats", flag.ExitOnError)
Initialize()
require.NotNil(t, handlers)
require.Empty(t, handlers)
config.Initialize()
config.Cfg.NATS.ConnectionString = "nats://127.0.0.1:14222"
err := StartListening()
require.Nil(t, err)
received := make(chan bool, 1)
d := func(data []byte) {
t.Log("Received data:", data)
received <- true
}
hndl := &Handler{
Name: "testhandler",
Func: d,
}
AddHandler(hndl)
// Send message.
nc, err1 := nats.Connect(config.Cfg.NATS.ConnectionString)
require.Nil(t, err1)
err2 := nc.Publish(Topic, []byte("Hello, world!"))
require.Nil(t, err2)
<-received
nc.Close()
err3 := Shutdown()
require.Nil(t, err3)
}

15
vendor/github.com/davecgh/go-spew/LICENSE generated vendored Normal file
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@ -0,0 +1,15 @@
ISC License
Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

145
vendor/github.com/davecgh/go-spew/spew/bypass.go generated vendored Normal file
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@ -0,0 +1,145 @@
// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is not running on Google App Engine, compiled by GopherJS, and
// "-tags safe" is not added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// Go versions prior to 1.4 are disabled because they use a different layout
// for interfaces which make the implementation of unsafeReflectValue more complex.
// +build !js,!appengine,!safe,!disableunsafe,go1.4
package spew
import (
"reflect"
"unsafe"
)
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = false
// ptrSize is the size of a pointer on the current arch.
ptrSize = unsafe.Sizeof((*byte)(nil))
)
type flag uintptr
var (
// flagRO indicates whether the value field of a reflect.Value
// is read-only.
flagRO flag
// flagAddr indicates whether the address of the reflect.Value's
// value may be taken.
flagAddr flag
)
// flagKindMask holds the bits that make up the kind
// part of the flags field. In all the supported versions,
// it is in the lower 5 bits.
const flagKindMask = flag(0x1f)
// Different versions of Go have used different
// bit layouts for the flags type. This table
// records the known combinations.
var okFlags = []struct {
ro, addr flag
}{{
// From Go 1.4 to 1.5
ro: 1 << 5,
addr: 1 << 7,
}, {
// Up to Go tip.
ro: 1<<5 | 1<<6,
addr: 1 << 8,
}}
var flagValOffset = func() uintptr {
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
if !ok {
panic("reflect.Value has no flag field")
}
return field.Offset
}()
// flagField returns a pointer to the flag field of a reflect.Value.
func flagField(v *reflect.Value) *flag {
return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset))
}
// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
// the typical safety restrictions preventing access to unaddressable and
// unexported data. It works by digging the raw pointer to the underlying
// value out of the protected value and generating a new unprotected (unsafe)
// reflect.Value to it.
//
// This allows us to check for implementations of the Stringer and error
// interfaces to be used for pretty printing ordinarily unaddressable and
// inaccessible values such as unexported struct fields.
func unsafeReflectValue(v reflect.Value) reflect.Value {
if !v.IsValid() || (v.CanInterface() && v.CanAddr()) {
return v
}
flagFieldPtr := flagField(&v)
*flagFieldPtr &^= flagRO
*flagFieldPtr |= flagAddr
return v
}
// Sanity checks against future reflect package changes
// to the type or semantics of the Value.flag field.
func init() {
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
if !ok {
panic("reflect.Value has no flag field")
}
if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() {
panic("reflect.Value flag field has changed kind")
}
type t0 int
var t struct {
A t0
// t0 will have flagEmbedRO set.
t0
// a will have flagStickyRO set
a t0
}
vA := reflect.ValueOf(t).FieldByName("A")
va := reflect.ValueOf(t).FieldByName("a")
vt0 := reflect.ValueOf(t).FieldByName("t0")
// Infer flagRO from the difference between the flags
// for the (otherwise identical) fields in t.
flagPublic := *flagField(&vA)
flagWithRO := *flagField(&va) | *flagField(&vt0)
flagRO = flagPublic ^ flagWithRO
// Infer flagAddr from the difference between a value
// taken from a pointer and not.
vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A")
flagNoPtr := *flagField(&vA)
flagPtr := *flagField(&vPtrA)
flagAddr = flagNoPtr ^ flagPtr
// Check that the inferred flags tally with one of the known versions.
for _, f := range okFlags {
if flagRO == f.ro && flagAddr == f.addr {
return
}
}
panic("reflect.Value read-only flag has changed semantics")
}

38
vendor/github.com/davecgh/go-spew/spew/bypasssafe.go generated vendored Normal file
View File

@ -0,0 +1,38 @@
// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is running on Google App Engine, compiled by GopherJS, or
// "-tags safe" is added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// +build js appengine safe disableunsafe !go1.4
package spew
import "reflect"
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = true
)
// unsafeReflectValue typically converts the passed reflect.Value into a one
// that bypasses the typical safety restrictions preventing access to
// unaddressable and unexported data. However, doing this relies on access to
// the unsafe package. This is a stub version which simply returns the passed
// reflect.Value when the unsafe package is not available.
func unsafeReflectValue(v reflect.Value) reflect.Value {
return v
}

341
vendor/github.com/davecgh/go-spew/spew/common.go generated vendored Normal file
View File

@ -0,0 +1,341 @@
/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"reflect"
"sort"
"strconv"
)
// Some constants in the form of bytes to avoid string overhead. This mirrors
// the technique used in the fmt package.
var (
panicBytes = []byte("(PANIC=")
plusBytes = []byte("+")
iBytes = []byte("i")
trueBytes = []byte("true")
falseBytes = []byte("false")
interfaceBytes = []byte("(interface {})")
commaNewlineBytes = []byte(",\n")
newlineBytes = []byte("\n")
openBraceBytes = []byte("{")
openBraceNewlineBytes = []byte("{\n")
closeBraceBytes = []byte("}")
asteriskBytes = []byte("*")
colonBytes = []byte(":")
colonSpaceBytes = []byte(": ")
openParenBytes = []byte("(")
closeParenBytes = []byte(")")
spaceBytes = []byte(" ")
pointerChainBytes = []byte("->")
nilAngleBytes = []byte("<nil>")
maxNewlineBytes = []byte("<max depth reached>\n")
maxShortBytes = []byte("<max>")
circularBytes = []byte("<already shown>")
circularShortBytes = []byte("<shown>")
invalidAngleBytes = []byte("<invalid>")
openBracketBytes = []byte("[")
closeBracketBytes = []byte("]")
percentBytes = []byte("%")
precisionBytes = []byte(".")
openAngleBytes = []byte("<")
closeAngleBytes = []byte(">")
openMapBytes = []byte("map[")
closeMapBytes = []byte("]")
lenEqualsBytes = []byte("len=")
capEqualsBytes = []byte("cap=")
)
// hexDigits is used to map a decimal value to a hex digit.
var hexDigits = "0123456789abcdef"
// catchPanic handles any panics that might occur during the handleMethods
// calls.
func catchPanic(w io.Writer, v reflect.Value) {
if err := recover(); err != nil {
w.Write(panicBytes)
fmt.Fprintf(w, "%v", err)
w.Write(closeParenBytes)
}
}
// handleMethods attempts to call the Error and String methods on the underlying
// type the passed reflect.Value represents and outputes the result to Writer w.
//
// It handles panics in any called methods by catching and displaying the error
// as the formatted value.
func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
// We need an interface to check if the type implements the error or
// Stringer interface. However, the reflect package won't give us an
// interface on certain things like unexported struct fields in order
// to enforce visibility rules. We use unsafe, when it's available,
// to bypass these restrictions since this package does not mutate the
// values.
if !v.CanInterface() {
if UnsafeDisabled {
return false
}
v = unsafeReflectValue(v)
}
// Choose whether or not to do error and Stringer interface lookups against
// the base type or a pointer to the base type depending on settings.
// Technically calling one of these methods with a pointer receiver can
// mutate the value, however, types which choose to satisify an error or
// Stringer interface with a pointer receiver should not be mutating their
// state inside these interface methods.
if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
v = unsafeReflectValue(v)
}
if v.CanAddr() {
v = v.Addr()
}
// Is it an error or Stringer?
switch iface := v.Interface().(type) {
case error:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.Error()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.Error()))
return true
case fmt.Stringer:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.String()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.String()))
return true
}
return false
}
// printBool outputs a boolean value as true or false to Writer w.
func printBool(w io.Writer, val bool) {
if val {
w.Write(trueBytes)
} else {
w.Write(falseBytes)
}
}
// printInt outputs a signed integer value to Writer w.
func printInt(w io.Writer, val int64, base int) {
w.Write([]byte(strconv.FormatInt(val, base)))
}
// printUint outputs an unsigned integer value to Writer w.
func printUint(w io.Writer, val uint64, base int) {
w.Write([]byte(strconv.FormatUint(val, base)))
}
// printFloat outputs a floating point value using the specified precision,
// which is expected to be 32 or 64bit, to Writer w.
func printFloat(w io.Writer, val float64, precision int) {
w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
}
// printComplex outputs a complex value using the specified float precision
// for the real and imaginary parts to Writer w.
func printComplex(w io.Writer, c complex128, floatPrecision int) {
r := real(c)
w.Write(openParenBytes)
w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
i := imag(c)
if i >= 0 {
w.Write(plusBytes)
}
w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
w.Write(iBytes)
w.Write(closeParenBytes)
}
// printHexPtr outputs a uintptr formatted as hexadecimal with a leading '0x'
// prefix to Writer w.
func printHexPtr(w io.Writer, p uintptr) {
// Null pointer.
num := uint64(p)
if num == 0 {
w.Write(nilAngleBytes)
return
}
// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
buf := make([]byte, 18)
// It's simpler to construct the hex string right to left.
base := uint64(16)
i := len(buf) - 1
for num >= base {
buf[i] = hexDigits[num%base]
num /= base
i--
}
buf[i] = hexDigits[num]
// Add '0x' prefix.
i--
buf[i] = 'x'
i--
buf[i] = '0'
// Strip unused leading bytes.
buf = buf[i:]
w.Write(buf)
}
// valuesSorter implements sort.Interface to allow a slice of reflect.Value
// elements to be sorted.
type valuesSorter struct {
values []reflect.Value
strings []string // either nil or same len and values
cs *ConfigState
}
// newValuesSorter initializes a valuesSorter instance, which holds a set of
// surrogate keys on which the data should be sorted. It uses flags in
// ConfigState to decide if and how to populate those surrogate keys.
func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
vs := &valuesSorter{values: values, cs: cs}
if canSortSimply(vs.values[0].Kind()) {
return vs
}
if !cs.DisableMethods {
vs.strings = make([]string, len(values))
for i := range vs.values {
b := bytes.Buffer{}
if !handleMethods(cs, &b, vs.values[i]) {
vs.strings = nil
break
}
vs.strings[i] = b.String()
}
}
if vs.strings == nil && cs.SpewKeys {
vs.strings = make([]string, len(values))
for i := range vs.values {
vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
}
}
return vs
}
// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
// directly, or whether it should be considered for sorting by surrogate keys
// (if the ConfigState allows it).
func canSortSimply(kind reflect.Kind) bool {
// This switch parallels valueSortLess, except for the default case.
switch kind {
case reflect.Bool:
return true
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return true
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return true
case reflect.Float32, reflect.Float64:
return true
case reflect.String:
return true
case reflect.Uintptr:
return true
case reflect.Array:
return true
}
return false
}
// Len returns the number of values in the slice. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Len() int {
return len(s.values)
}
// Swap swaps the values at the passed indices. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Swap(i, j int) {
s.values[i], s.values[j] = s.values[j], s.values[i]
if s.strings != nil {
s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
}
}
// valueSortLess returns whether the first value should sort before the second
// value. It is used by valueSorter.Less as part of the sort.Interface
// implementation.
func valueSortLess(a, b reflect.Value) bool {
switch a.Kind() {
case reflect.Bool:
return !a.Bool() && b.Bool()
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return a.Int() < b.Int()
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return a.Uint() < b.Uint()
case reflect.Float32, reflect.Float64:
return a.Float() < b.Float()
case reflect.String:
return a.String() < b.String()
case reflect.Uintptr:
return a.Uint() < b.Uint()
case reflect.Array:
// Compare the contents of both arrays.
l := a.Len()
for i := 0; i < l; i++ {
av := a.Index(i)
bv := b.Index(i)
if av.Interface() == bv.Interface() {
continue
}
return valueSortLess(av, bv)
}
}
return a.String() < b.String()
}
// Less returns whether the value at index i should sort before the
// value at index j. It is part of the sort.Interface implementation.
func (s *valuesSorter) Less(i, j int) bool {
if s.strings == nil {
return valueSortLess(s.values[i], s.values[j])
}
return s.strings[i] < s.strings[j]
}
// sortValues is a sort function that handles both native types and any type that
// can be converted to error or Stringer. Other inputs are sorted according to
// their Value.String() value to ensure display stability.
func sortValues(values []reflect.Value, cs *ConfigState) {
if len(values) == 0 {
return
}
sort.Sort(newValuesSorter(values, cs))
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"os"
)
// ConfigState houses the configuration options used by spew to format and
// display values. There is a global instance, Config, that is used to control
// all top-level Formatter and Dump functionality. Each ConfigState instance
// provides methods equivalent to the top-level functions.
//
// The zero value for ConfigState provides no indentation. You would typically
// want to set it to a space or a tab.
//
// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
// with default settings. See the documentation of NewDefaultConfig for default
// values.
type ConfigState struct {
// Indent specifies the string to use for each indentation level. The
// global config instance that all top-level functions use set this to a
// single space by default. If you would like more indentation, you might
// set this to a tab with "\t" or perhaps two spaces with " ".
Indent string
// MaxDepth controls the maximum number of levels to descend into nested
// data structures. The default, 0, means there is no limit.
//
// NOTE: Circular data structures are properly detected, so it is not
// necessary to set this value unless you specifically want to limit deeply
// nested data structures.
MaxDepth int
// DisableMethods specifies whether or not error and Stringer interfaces are
// invoked for types that implement them.
DisableMethods bool
// DisablePointerMethods specifies whether or not to check for and invoke
// error and Stringer interfaces on types which only accept a pointer
// receiver when the current type is not a pointer.
//
// NOTE: This might be an unsafe action since calling one of these methods
// with a pointer receiver could technically mutate the value, however,
// in practice, types which choose to satisify an error or Stringer
// interface with a pointer receiver should not be mutating their state
// inside these interface methods. As a result, this option relies on
// access to the unsafe package, so it will not have any effect when
// running in environments without access to the unsafe package such as
// Google App Engine or with the "safe" build tag specified.
DisablePointerMethods bool
// DisablePointerAddresses specifies whether to disable the printing of
// pointer addresses. This is useful when diffing data structures in tests.
DisablePointerAddresses bool
// DisableCapacities specifies whether to disable the printing of capacities
// for arrays, slices, maps and channels. This is useful when diffing
// data structures in tests.
DisableCapacities bool
// ContinueOnMethod specifies whether or not recursion should continue once
// a custom error or Stringer interface is invoked. The default, false,
// means it will print the results of invoking the custom error or Stringer
// interface and return immediately instead of continuing to recurse into
// the internals of the data type.
//
// NOTE: This flag does not have any effect if method invocation is disabled
// via the DisableMethods or DisablePointerMethods options.
ContinueOnMethod bool
// SortKeys specifies map keys should be sorted before being printed. Use
// this to have a more deterministic, diffable output. Note that only
// native types (bool, int, uint, floats, uintptr and string) and types
// that support the error or Stringer interfaces (if methods are
// enabled) are supported, with other types sorted according to the
// reflect.Value.String() output which guarantees display stability.
SortKeys bool
// SpewKeys specifies that, as a last resort attempt, map keys should
// be spewed to strings and sorted by those strings. This is only
// considered if SortKeys is true.
SpewKeys bool
}
// Config is the active configuration of the top-level functions.
// The configuration can be changed by modifying the contents of spew.Config.
var Config = ConfigState{Indent: " "}
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the formatted string as a value that satisfies error. See NewFormatter
// for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, c.convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, c.convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, c.convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a Formatter interface returned by c.NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, c.convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
return fmt.Print(c.convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, c.convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
return fmt.Println(c.convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprint(a ...interface{}) string {
return fmt.Sprint(c.convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, c.convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a Formatter interface returned by c.NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintln(a ...interface{}) string {
return fmt.Sprintln(c.convertArgs(a)...)
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
c.Printf, c.Println, or c.Printf.
*/
func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(c, v)
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
fdump(c, w, a...)
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by modifying the public members
of c. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func (c *ConfigState) Dump(a ...interface{}) {
fdump(c, os.Stdout, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func (c *ConfigState) Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(c, &buf, a...)
return buf.String()
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a spew Formatter interface using
// the ConfigState associated with s.
func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = newFormatter(c, arg)
}
return formatters
}
// NewDefaultConfig returns a ConfigState with the following default settings.
//
// Indent: " "
// MaxDepth: 0
// DisableMethods: false
// DisablePointerMethods: false
// ContinueOnMethod: false
// SortKeys: false
func NewDefaultConfig() *ConfigState {
return &ConfigState{Indent: " "}
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
Package spew implements a deep pretty printer for Go data structures to aid in
debugging.
A quick overview of the additional features spew provides over the built-in
printing facilities for Go data types are as follows:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output (only when using
Dump style)
There are two different approaches spew allows for dumping Go data structures:
* Dump style which prints with newlines, customizable indentation,
and additional debug information such as types and all pointer addresses
used to indirect to the final value
* A custom Formatter interface that integrates cleanly with the standard fmt
package and replaces %v, %+v, %#v, and %#+v to provide inline printing
similar to the default %v while providing the additional functionality
outlined above and passing unsupported format verbs such as %x and %q
along to fmt
Quick Start
This section demonstrates how to quickly get started with spew. See the
sections below for further details on formatting and configuration options.
To dump a variable with full newlines, indentation, type, and pointer
information use Dump, Fdump, or Sdump:
spew.Dump(myVar1, myVar2, ...)
spew.Fdump(someWriter, myVar1, myVar2, ...)
str := spew.Sdump(myVar1, myVar2, ...)
Alternatively, if you would prefer to use format strings with a compacted inline
printing style, use the convenience wrappers Printf, Fprintf, etc with
%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
%#+v (adds types and pointer addresses):
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
Configuration Options
Configuration of spew is handled by fields in the ConfigState type. For
convenience, all of the top-level functions use a global state available
via the spew.Config global.
It is also possible to create a ConfigState instance that provides methods
equivalent to the top-level functions. This allows concurrent configuration
options. See the ConfigState documentation for more details.
The following configuration options are available:
* Indent
String to use for each indentation level for Dump functions.
It is a single space by default. A popular alternative is "\t".
* MaxDepth
Maximum number of levels to descend into nested data structures.
There is no limit by default.
* DisableMethods
Disables invocation of error and Stringer interface methods.
Method invocation is enabled by default.
* DisablePointerMethods
Disables invocation of error and Stringer interface methods on types
which only accept pointer receivers from non-pointer variables.
Pointer method invocation is enabled by default.
* DisablePointerAddresses
DisablePointerAddresses specifies whether to disable the printing of
pointer addresses. This is useful when diffing data structures in tests.
* DisableCapacities
DisableCapacities specifies whether to disable the printing of
capacities for arrays, slices, maps and channels. This is useful when
diffing data structures in tests.
* ContinueOnMethod
Enables recursion into types after invoking error and Stringer interface
methods. Recursion after method invocation is disabled by default.
* SortKeys
Specifies map keys should be sorted before being printed. Use
this to have a more deterministic, diffable output. Note that
only native types (bool, int, uint, floats, uintptr and string)
and types which implement error or Stringer interfaces are
supported with other types sorted according to the
reflect.Value.String() output which guarantees display
stability. Natural map order is used by default.
* SpewKeys
Specifies that, as a last resort attempt, map keys should be
spewed to strings and sorted by those strings. This is only
considered if SortKeys is true.
Dump Usage
Simply call spew.Dump with a list of variables you want to dump:
spew.Dump(myVar1, myVar2, ...)
You may also call spew.Fdump if you would prefer to output to an arbitrary
io.Writer. For example, to dump to standard error:
spew.Fdump(os.Stderr, myVar1, myVar2, ...)
A third option is to call spew.Sdump to get the formatted output as a string:
str := spew.Sdump(myVar1, myVar2, ...)
Sample Dump Output
See the Dump example for details on the setup of the types and variables being
shown here.
(main.Foo) {
unexportedField: (*main.Bar)(0xf84002e210)({
flag: (main.Flag) flagTwo,
data: (uintptr) <nil>
}),
ExportedField: (map[interface {}]interface {}) (len=1) {
(string) (len=3) "one": (bool) true
}
}
Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
command as shown.
([]uint8) (len=32 cap=32) {
00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... |
00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0|
00000020 31 32 |12|
}
Custom Formatter
Spew provides a custom formatter that implements the fmt.Formatter interface
so that it integrates cleanly with standard fmt package printing functions. The
formatter is useful for inline printing of smaller data types similar to the
standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Custom Formatter Usage
The simplest way to make use of the spew custom formatter is to call one of the
convenience functions such as spew.Printf, spew.Println, or spew.Printf. The
functions have syntax you are most likely already familiar with:
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Println(myVar, myVar2)
spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
See the Index for the full list convenience functions.
Sample Formatter Output
Double pointer to a uint8:
%v: <**>5
%+v: <**>(0xf8400420d0->0xf8400420c8)5
%#v: (**uint8)5
%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
Pointer to circular struct with a uint8 field and a pointer to itself:
%v: <*>{1 <*><shown>}
%+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
%#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
See the Printf example for details on the setup of variables being shown
here.
Errors
Since it is possible for custom Stringer/error interfaces to panic, spew
detects them and handles them internally by printing the panic information
inline with the output. Since spew is intended to provide deep pretty printing
capabilities on structures, it intentionally does not return any errors.
*/
package spew

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"os"
"reflect"
"regexp"
"strconv"
"strings"
)
var (
// uint8Type is a reflect.Type representing a uint8. It is used to
// convert cgo types to uint8 slices for hexdumping.
uint8Type = reflect.TypeOf(uint8(0))
// cCharRE is a regular expression that matches a cgo char.
// It is used to detect character arrays to hexdump them.
cCharRE = regexp.MustCompile(`^.*\._Ctype_char$`)
// cUnsignedCharRE is a regular expression that matches a cgo unsigned
// char. It is used to detect unsigned character arrays to hexdump
// them.
cUnsignedCharRE = regexp.MustCompile(`^.*\._Ctype_unsignedchar$`)
// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
// It is used to detect uint8_t arrays to hexdump them.
cUint8tCharRE = regexp.MustCompile(`^.*\._Ctype_uint8_t$`)
)
// dumpState contains information about the state of a dump operation.
type dumpState struct {
w io.Writer
depth int
pointers map[uintptr]int
ignoreNextType bool
ignoreNextIndent bool
cs *ConfigState
}
// indent performs indentation according to the depth level and cs.Indent
// option.
func (d *dumpState) indent() {
if d.ignoreNextIndent {
d.ignoreNextIndent = false
return
}
d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
}
// unpackValue returns values inside of non-nil interfaces when possible.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface && !v.IsNil() {
v = v.Elem()
}
return v
}
// dumpPtr handles formatting of pointers by indirecting them as necessary.
func (d *dumpState) dumpPtr(v reflect.Value) {
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range d.pointers {
if depth >= d.depth {
delete(d.pointers, k)
}
}
// Keep list of all dereferenced pointers to show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by dereferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := d.pointers[addr]; ok && pd < d.depth {
cycleFound = true
indirects--
break
}
d.pointers[addr] = d.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type information.
d.w.Write(openParenBytes)
d.w.Write(bytes.Repeat(asteriskBytes, indirects))
d.w.Write([]byte(ve.Type().String()))
d.w.Write(closeParenBytes)
// Display pointer information.
if !d.cs.DisablePointerAddresses && len(pointerChain) > 0 {
d.w.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
d.w.Write(pointerChainBytes)
}
printHexPtr(d.w, addr)
}
d.w.Write(closeParenBytes)
}
// Display dereferenced value.
d.w.Write(openParenBytes)
switch {
case nilFound:
d.w.Write(nilAngleBytes)
case cycleFound:
d.w.Write(circularBytes)
default:
d.ignoreNextType = true
d.dump(ve)
}
d.w.Write(closeParenBytes)
}
// dumpSlice handles formatting of arrays and slices. Byte (uint8 under
// reflection) arrays and slices are dumped in hexdump -C fashion.
func (d *dumpState) dumpSlice(v reflect.Value) {
// Determine whether this type should be hex dumped or not. Also,
// for types which should be hexdumped, try to use the underlying data
// first, then fall back to trying to convert them to a uint8 slice.
var buf []uint8
doConvert := false
doHexDump := false
numEntries := v.Len()
if numEntries > 0 {
vt := v.Index(0).Type()
vts := vt.String()
switch {
// C types that need to be converted.
case cCharRE.MatchString(vts):
fallthrough
case cUnsignedCharRE.MatchString(vts):
fallthrough
case cUint8tCharRE.MatchString(vts):
doConvert = true
// Try to use existing uint8 slices and fall back to converting
// and copying if that fails.
case vt.Kind() == reflect.Uint8:
// We need an addressable interface to convert the type
// to a byte slice. However, the reflect package won't
// give us an interface on certain things like
// unexported struct fields in order to enforce
// visibility rules. We use unsafe, when available, to
// bypass these restrictions since this package does not
// mutate the values.
vs := v
if !vs.CanInterface() || !vs.CanAddr() {
vs = unsafeReflectValue(vs)
}
if !UnsafeDisabled {
vs = vs.Slice(0, numEntries)
// Use the existing uint8 slice if it can be
// type asserted.
iface := vs.Interface()
if slice, ok := iface.([]uint8); ok {
buf = slice
doHexDump = true
break
}
}
// The underlying data needs to be converted if it can't
// be type asserted to a uint8 slice.
doConvert = true
}
// Copy and convert the underlying type if needed.
if doConvert && vt.ConvertibleTo(uint8Type) {
// Convert and copy each element into a uint8 byte
// slice.
buf = make([]uint8, numEntries)
for i := 0; i < numEntries; i++ {
vv := v.Index(i)
buf[i] = uint8(vv.Convert(uint8Type).Uint())
}
doHexDump = true
}
}
// Hexdump the entire slice as needed.
if doHexDump {
indent := strings.Repeat(d.cs.Indent, d.depth)
str := indent + hex.Dump(buf)
str = strings.Replace(str, "\n", "\n"+indent, -1)
str = strings.TrimRight(str, d.cs.Indent)
d.w.Write([]byte(str))
return
}
// Recursively call dump for each item.
for i := 0; i < numEntries; i++ {
d.dump(d.unpackValue(v.Index(i)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
// dump is the main workhorse for dumping a value. It uses the passed reflect
// value to figure out what kind of object we are dealing with and formats it
// appropriately. It is a recursive function, however circular data structures
// are detected and handled properly.
func (d *dumpState) dump(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
d.w.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
d.indent()
d.dumpPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !d.ignoreNextType {
d.indent()
d.w.Write(openParenBytes)
d.w.Write([]byte(v.Type().String()))
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
d.ignoreNextType = false
// Display length and capacity if the built-in len and cap functions
// work with the value's kind and the len/cap itself is non-zero.
valueLen, valueCap := 0, 0
switch v.Kind() {
case reflect.Array, reflect.Slice, reflect.Chan:
valueLen, valueCap = v.Len(), v.Cap()
case reflect.Map, reflect.String:
valueLen = v.Len()
}
if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 {
d.w.Write(openParenBytes)
if valueLen != 0 {
d.w.Write(lenEqualsBytes)
printInt(d.w, int64(valueLen), 10)
}
if !d.cs.DisableCapacities && valueCap != 0 {
if valueLen != 0 {
d.w.Write(spaceBytes)
}
d.w.Write(capEqualsBytes)
printInt(d.w, int64(valueCap), 10)
}
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
// Call Stringer/error interfaces if they exist and the handle methods flag
// is enabled
if !d.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(d.cs, d.w, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(d.w, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(d.w, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(d.w, v.Uint(), 10)
case reflect.Float32:
printFloat(d.w, v.Float(), 32)
case reflect.Float64:
printFloat(d.w, v.Float(), 64)
case reflect.Complex64:
printComplex(d.w, v.Complex(), 32)
case reflect.Complex128:
printComplex(d.w, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
d.dumpSlice(v)
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.String:
d.w.Write([]byte(strconv.Quote(v.String())))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
d.w.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
numEntries := v.Len()
keys := v.MapKeys()
if d.cs.SortKeys {
sortValues(keys, d.cs)
}
for i, key := range keys {
d.dump(d.unpackValue(key))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.MapIndex(key)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Struct:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
vt := v.Type()
numFields := v.NumField()
for i := 0; i < numFields; i++ {
d.indent()
vtf := vt.Field(i)
d.w.Write([]byte(vtf.Name))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.Field(i)))
if i < (numFields - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(d.w, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(d.w, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it in case any new
// types are added.
default:
if v.CanInterface() {
fmt.Fprintf(d.w, "%v", v.Interface())
} else {
fmt.Fprintf(d.w, "%v", v.String())
}
}
}
// fdump is a helper function to consolidate the logic from the various public
// methods which take varying writers and config states.
func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
for _, arg := range a {
if arg == nil {
w.Write(interfaceBytes)
w.Write(spaceBytes)
w.Write(nilAngleBytes)
w.Write(newlineBytes)
continue
}
d := dumpState{w: w, cs: cs}
d.pointers = make(map[uintptr]int)
d.dump(reflect.ValueOf(arg))
d.w.Write(newlineBytes)
}
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func Fdump(w io.Writer, a ...interface{}) {
fdump(&Config, w, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(&Config, &buf, a...)
return buf.String()
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by an exported package global,
spew.Config. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func Dump(a ...interface{}) {
fdump(&Config, os.Stdout, a...)
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
)
// supportedFlags is a list of all the character flags supported by fmt package.
const supportedFlags = "0-+# "
// formatState implements the fmt.Formatter interface and contains information
// about the state of a formatting operation. The NewFormatter function can
// be used to get a new Formatter which can be used directly as arguments
// in standard fmt package printing calls.
type formatState struct {
value interface{}
fs fmt.State
depth int
pointers map[uintptr]int
ignoreNextType bool
cs *ConfigState
}
// buildDefaultFormat recreates the original format string without precision
// and width information to pass in to fmt.Sprintf in the case of an
// unrecognized type. Unless new types are added to the language, this
// function won't ever be called.
func (f *formatState) buildDefaultFormat() (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
buf.WriteRune('v')
format = buf.String()
return format
}
// constructOrigFormat recreates the original format string including precision
// and width information to pass along to the standard fmt package. This allows
// automatic deferral of all format strings this package doesn't support.
func (f *formatState) constructOrigFormat(verb rune) (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
if width, ok := f.fs.Width(); ok {
buf.WriteString(strconv.Itoa(width))
}
if precision, ok := f.fs.Precision(); ok {
buf.Write(precisionBytes)
buf.WriteString(strconv.Itoa(precision))
}
buf.WriteRune(verb)
format = buf.String()
return format
}
// unpackValue returns values inside of non-nil interfaces when possible and
// ensures that types for values which have been unpacked from an interface
// are displayed when the show types flag is also set.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface {
f.ignoreNextType = false
if !v.IsNil() {
v = v.Elem()
}
}
return v
}
// formatPtr handles formatting of pointers by indirecting them as necessary.
func (f *formatState) formatPtr(v reflect.Value) {
// Display nil if top level pointer is nil.
showTypes := f.fs.Flag('#')
if v.IsNil() && (!showTypes || f.ignoreNextType) {
f.fs.Write(nilAngleBytes)
return
}
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range f.pointers {
if depth >= f.depth {
delete(f.pointers, k)
}
}
// Keep list of all dereferenced pointers to possibly show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by derferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := f.pointers[addr]; ok && pd < f.depth {
cycleFound = true
indirects--
break
}
f.pointers[addr] = f.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type or indirection level depending on flags.
if showTypes && !f.ignoreNextType {
f.fs.Write(openParenBytes)
f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
f.fs.Write([]byte(ve.Type().String()))
f.fs.Write(closeParenBytes)
} else {
if nilFound || cycleFound {
indirects += strings.Count(ve.Type().String(), "*")
}
f.fs.Write(openAngleBytes)
f.fs.Write([]byte(strings.Repeat("*", indirects)))
f.fs.Write(closeAngleBytes)
}
// Display pointer information depending on flags.
if f.fs.Flag('+') && (len(pointerChain) > 0) {
f.fs.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
f.fs.Write(pointerChainBytes)
}
printHexPtr(f.fs, addr)
}
f.fs.Write(closeParenBytes)
}
// Display dereferenced value.
switch {
case nilFound:
f.fs.Write(nilAngleBytes)
case cycleFound:
f.fs.Write(circularShortBytes)
default:
f.ignoreNextType = true
f.format(ve)
}
}
// format is the main workhorse for providing the Formatter interface. It
// uses the passed reflect value to figure out what kind of object we are
// dealing with and formats it appropriately. It is a recursive function,
// however circular data structures are detected and handled properly.
func (f *formatState) format(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
f.fs.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
f.formatPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !f.ignoreNextType && f.fs.Flag('#') {
f.fs.Write(openParenBytes)
f.fs.Write([]byte(v.Type().String()))
f.fs.Write(closeParenBytes)
}
f.ignoreNextType = false
// Call Stringer/error interfaces if they exist and the handle methods
// flag is enabled.
if !f.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(f.cs, f.fs, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(f.fs, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(f.fs, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(f.fs, v.Uint(), 10)
case reflect.Float32:
printFloat(f.fs, v.Float(), 32)
case reflect.Float64:
printFloat(f.fs, v.Float(), 64)
case reflect.Complex64:
printComplex(f.fs, v.Complex(), 32)
case reflect.Complex128:
printComplex(f.fs, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
f.fs.Write(openBracketBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
numEntries := v.Len()
for i := 0; i < numEntries; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(v.Index(i)))
}
}
f.depth--
f.fs.Write(closeBracketBytes)
case reflect.String:
f.fs.Write([]byte(v.String()))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
f.fs.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
f.fs.Write(openMapBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
keys := v.MapKeys()
if f.cs.SortKeys {
sortValues(keys, f.cs)
}
for i, key := range keys {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(key))
f.fs.Write(colonBytes)
f.ignoreNextType = true
f.format(f.unpackValue(v.MapIndex(key)))
}
}
f.depth--
f.fs.Write(closeMapBytes)
case reflect.Struct:
numFields := v.NumField()
f.fs.Write(openBraceBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
vt := v.Type()
for i := 0; i < numFields; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
vtf := vt.Field(i)
if f.fs.Flag('+') || f.fs.Flag('#') {
f.fs.Write([]byte(vtf.Name))
f.fs.Write(colonBytes)
}
f.format(f.unpackValue(v.Field(i)))
}
}
f.depth--
f.fs.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(f.fs, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(f.fs, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it if any get added.
default:
format := f.buildDefaultFormat()
if v.CanInterface() {
fmt.Fprintf(f.fs, format, v.Interface())
} else {
fmt.Fprintf(f.fs, format, v.String())
}
}
}
// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
// details.
func (f *formatState) Format(fs fmt.State, verb rune) {
f.fs = fs
// Use standard formatting for verbs that are not v.
if verb != 'v' {
format := f.constructOrigFormat(verb)
fmt.Fprintf(fs, format, f.value)
return
}
if f.value == nil {
if fs.Flag('#') {
fs.Write(interfaceBytes)
}
fs.Write(nilAngleBytes)
return
}
f.format(reflect.ValueOf(f.value))
}
// newFormatter is a helper function to consolidate the logic from the various
// public methods which take varying config states.
func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
fs := &formatState{value: v, cs: cs}
fs.pointers = make(map[uintptr]int)
return fs
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
Printf, Println, or Fprintf.
*/
func NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(&Config, v)
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"fmt"
"io"
)
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the formatted string as a value that satisfies error. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a default Formatter interface returned by NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
func Print(a ...interface{}) (n int, err error) {
return fmt.Print(convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
func Println(a ...interface{}) (n int, err error) {
return fmt.Println(convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprint(a ...interface{}) string {
return fmt.Sprint(convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintln(a ...interface{}) string {
return fmt.Sprintln(convertArgs(a)...)
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a default spew Formatter interface.
func convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = NewFormatter(arg)
}
return formatters
}

27
vendor/github.com/pmezard/go-difflib/LICENSE generated vendored Normal file
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@ -0,0 +1,27 @@
Copyright (c) 2013, Patrick Mezard
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
The names of its contributors may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

772
vendor/github.com/pmezard/go-difflib/difflib/difflib.go generated vendored Normal file
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// Package difflib is a partial port of Python difflib module.
//
// It provides tools to compare sequences of strings and generate textual diffs.
//
// The following class and functions have been ported:
//
// - SequenceMatcher
//
// - unified_diff
//
// - context_diff
//
// Getting unified diffs was the main goal of the port. Keep in mind this code
// is mostly suitable to output text differences in a human friendly way, there
// are no guarantees generated diffs are consumable by patch(1).
package difflib
import (
"bufio"
"bytes"
"fmt"
"io"
"strings"
)
func min(a, b int) int {
if a < b {
return a
}
return b
}
func max(a, b int) int {
if a > b {
return a
}
return b
}
func calculateRatio(matches, length int) float64 {
if length > 0 {
return 2.0 * float64(matches) / float64(length)
}
return 1.0
}
type Match struct {
A int
B int
Size int
}
type OpCode struct {
Tag byte
I1 int
I2 int
J1 int
J2 int
}
// SequenceMatcher compares sequence of strings. The basic
// algorithm predates, and is a little fancier than, an algorithm
// published in the late 1980's by Ratcliff and Obershelp under the
// hyperbolic name "gestalt pattern matching". The basic idea is to find
// the longest contiguous matching subsequence that contains no "junk"
// elements (R-O doesn't address junk). The same idea is then applied
// recursively to the pieces of the sequences to the left and to the right
// of the matching subsequence. This does not yield minimal edit
// sequences, but does tend to yield matches that "look right" to people.
//
// SequenceMatcher tries to compute a "human-friendly diff" between two
// sequences. Unlike e.g. UNIX(tm) diff, the fundamental notion is the
// longest *contiguous* & junk-free matching subsequence. That's what
// catches peoples' eyes. The Windows(tm) windiff has another interesting
// notion, pairing up elements that appear uniquely in each sequence.
// That, and the method here, appear to yield more intuitive difference
// reports than does diff. This method appears to be the least vulnerable
// to synching up on blocks of "junk lines", though (like blank lines in
// ordinary text files, or maybe "<P>" lines in HTML files). That may be
// because this is the only method of the 3 that has a *concept* of
// "junk" <wink>.
//
// Timing: Basic R-O is cubic time worst case and quadratic time expected
// case. SequenceMatcher is quadratic time for the worst case and has
// expected-case behavior dependent in a complicated way on how many
// elements the sequences have in common; best case time is linear.
type SequenceMatcher struct {
a []string
b []string
b2j map[string][]int
IsJunk func(string) bool
autoJunk bool
bJunk map[string]struct{}
matchingBlocks []Match
fullBCount map[string]int
bPopular map[string]struct{}
opCodes []OpCode
}
func NewMatcher(a, b []string) *SequenceMatcher {
m := SequenceMatcher{autoJunk: true}
m.SetSeqs(a, b)
return &m
}
func NewMatcherWithJunk(a, b []string, autoJunk bool,
isJunk func(string) bool) *SequenceMatcher {
m := SequenceMatcher{IsJunk: isJunk, autoJunk: autoJunk}
m.SetSeqs(a, b)
return &m
}
// Set two sequences to be compared.
func (m *SequenceMatcher) SetSeqs(a, b []string) {
m.SetSeq1(a)
m.SetSeq2(b)
}
// Set the first sequence to be compared. The second sequence to be compared is
// not changed.
//
// SequenceMatcher computes and caches detailed information about the second
// sequence, so if you want to compare one sequence S against many sequences,
// use .SetSeq2(s) once and call .SetSeq1(x) repeatedly for each of the other
// sequences.
//
// See also SetSeqs() and SetSeq2().
func (m *SequenceMatcher) SetSeq1(a []string) {
if &a == &m.a {
return
}
m.a = a
m.matchingBlocks = nil
m.opCodes = nil
}
// Set the second sequence to be compared. The first sequence to be compared is
// not changed.
func (m *SequenceMatcher) SetSeq2(b []string) {
if &b == &m.b {
return
}
m.b = b
m.matchingBlocks = nil
m.opCodes = nil
m.fullBCount = nil
m.chainB()
}
func (m *SequenceMatcher) chainB() {
// Populate line -> index mapping
b2j := map[string][]int{}
for i, s := range m.b {
indices := b2j[s]
indices = append(indices, i)
b2j[s] = indices
}
// Purge junk elements
m.bJunk = map[string]struct{}{}
if m.IsJunk != nil {
junk := m.bJunk
for s, _ := range b2j {
if m.IsJunk(s) {
junk[s] = struct{}{}
}
}
for s, _ := range junk {
delete(b2j, s)
}
}
// Purge remaining popular elements
popular := map[string]struct{}{}
n := len(m.b)
if m.autoJunk && n >= 200 {
ntest := n/100 + 1
for s, indices := range b2j {
if len(indices) > ntest {
popular[s] = struct{}{}
}
}
for s, _ := range popular {
delete(b2j, s)
}
}
m.bPopular = popular
m.b2j = b2j
}
func (m *SequenceMatcher) isBJunk(s string) bool {
_, ok := m.bJunk[s]
return ok
}
// Find longest matching block in a[alo:ahi] and b[blo:bhi].
//
// If IsJunk is not defined:
//
// Return (i,j,k) such that a[i:i+k] is equal to b[j:j+k], where
// alo <= i <= i+k <= ahi
// blo <= j <= j+k <= bhi
// and for all (i',j',k') meeting those conditions,
// k >= k'
// i <= i'
// and if i == i', j <= j'
//
// In other words, of all maximal matching blocks, return one that
// starts earliest in a, and of all those maximal matching blocks that
// start earliest in a, return the one that starts earliest in b.
//
// If IsJunk is defined, first the longest matching block is
// determined as above, but with the additional restriction that no
// junk element appears in the block. Then that block is extended as
// far as possible by matching (only) junk elements on both sides. So
// the resulting block never matches on junk except as identical junk
// happens to be adjacent to an "interesting" match.
//
// If no blocks match, return (alo, blo, 0).
func (m *SequenceMatcher) findLongestMatch(alo, ahi, blo, bhi int) Match {
// CAUTION: stripping common prefix or suffix would be incorrect.
// E.g.,
// ab
// acab
// Longest matching block is "ab", but if common prefix is
// stripped, it's "a" (tied with "b"). UNIX(tm) diff does so
// strip, so ends up claiming that ab is changed to acab by
// inserting "ca" in the middle. That's minimal but unintuitive:
// "it's obvious" that someone inserted "ac" at the front.
// Windiff ends up at the same place as diff, but by pairing up
// the unique 'b's and then matching the first two 'a's.
besti, bestj, bestsize := alo, blo, 0
// find longest junk-free match
// during an iteration of the loop, j2len[j] = length of longest
// junk-free match ending with a[i-1] and b[j]
j2len := map[int]int{}
for i := alo; i != ahi; i++ {
// look at all instances of a[i] in b; note that because
// b2j has no junk keys, the loop is skipped if a[i] is junk
newj2len := map[int]int{}
for _, j := range m.b2j[m.a[i]] {
// a[i] matches b[j]
if j < blo {
continue
}
if j >= bhi {
break
}
k := j2len[j-1] + 1
newj2len[j] = k
if k > bestsize {
besti, bestj, bestsize = i-k+1, j-k+1, k
}
}
j2len = newj2len
}
// Extend the best by non-junk elements on each end. In particular,
// "popular" non-junk elements aren't in b2j, which greatly speeds
// the inner loop above, but also means "the best" match so far
// doesn't contain any junk *or* popular non-junk elements.
for besti > alo && bestj > blo && !m.isBJunk(m.b[bestj-1]) &&
m.a[besti-1] == m.b[bestj-1] {
besti, bestj, bestsize = besti-1, bestj-1, bestsize+1
}
for besti+bestsize < ahi && bestj+bestsize < bhi &&
!m.isBJunk(m.b[bestj+bestsize]) &&
m.a[besti+bestsize] == m.b[bestj+bestsize] {
bestsize += 1
}
// Now that we have a wholly interesting match (albeit possibly
// empty!), we may as well suck up the matching junk on each
// side of it too. Can't think of a good reason not to, and it
// saves post-processing the (possibly considerable) expense of
// figuring out what to do with it. In the case of an empty
// interesting match, this is clearly the right thing to do,
// because no other kind of match is possible in the regions.
for besti > alo && bestj > blo && m.isBJunk(m.b[bestj-1]) &&
m.a[besti-1] == m.b[bestj-1] {
besti, bestj, bestsize = besti-1, bestj-1, bestsize+1
}
for besti+bestsize < ahi && bestj+bestsize < bhi &&
m.isBJunk(m.b[bestj+bestsize]) &&
m.a[besti+bestsize] == m.b[bestj+bestsize] {
bestsize += 1
}
return Match{A: besti, B: bestj, Size: bestsize}
}
// Return list of triples describing matching subsequences.
//
// Each triple is of the form (i, j, n), and means that
// a[i:i+n] == b[j:j+n]. The triples are monotonically increasing in
// i and in j. It's also guaranteed that if (i, j, n) and (i', j', n') are
// adjacent triples in the list, and the second is not the last triple in the
// list, then i+n != i' or j+n != j'. IOW, adjacent triples never describe
// adjacent equal blocks.
//
// The last triple is a dummy, (len(a), len(b), 0), and is the only
// triple with n==0.
func (m *SequenceMatcher) GetMatchingBlocks() []Match {
if m.matchingBlocks != nil {
return m.matchingBlocks
}
var matchBlocks func(alo, ahi, blo, bhi int, matched []Match) []Match
matchBlocks = func(alo, ahi, blo, bhi int, matched []Match) []Match {
match := m.findLongestMatch(alo, ahi, blo, bhi)
i, j, k := match.A, match.B, match.Size
if match.Size > 0 {
if alo < i && blo < j {
matched = matchBlocks(alo, i, blo, j, matched)
}
matched = append(matched, match)
if i+k < ahi && j+k < bhi {
matched = matchBlocks(i+k, ahi, j+k, bhi, matched)
}
}
return matched
}
matched := matchBlocks(0, len(m.a), 0, len(m.b), nil)
// It's possible that we have adjacent equal blocks in the
// matching_blocks list now.
nonAdjacent := []Match{}
i1, j1, k1 := 0, 0, 0
for _, b := range matched {
// Is this block adjacent to i1, j1, k1?
i2, j2, k2 := b.A, b.B, b.Size
if i1+k1 == i2 && j1+k1 == j2 {
// Yes, so collapse them -- this just increases the length of
// the first block by the length of the second, and the first
// block so lengthened remains the block to compare against.
k1 += k2
} else {
// Not adjacent. Remember the first block (k1==0 means it's
// the dummy we started with), and make the second block the
// new block to compare against.
if k1 > 0 {
nonAdjacent = append(nonAdjacent, Match{i1, j1, k1})
}
i1, j1, k1 = i2, j2, k2
}
}
if k1 > 0 {
nonAdjacent = append(nonAdjacent, Match{i1, j1, k1})
}
nonAdjacent = append(nonAdjacent, Match{len(m.a), len(m.b), 0})
m.matchingBlocks = nonAdjacent
return m.matchingBlocks
}
// Return list of 5-tuples describing how to turn a into b.
//
// Each tuple is of the form (tag, i1, i2, j1, j2). The first tuple
// has i1 == j1 == 0, and remaining tuples have i1 == the i2 from the
// tuple preceding it, and likewise for j1 == the previous j2.
//
// The tags are characters, with these meanings:
//
// 'r' (replace): a[i1:i2] should be replaced by b[j1:j2]
//
// 'd' (delete): a[i1:i2] should be deleted, j1==j2 in this case.
//
// 'i' (insert): b[j1:j2] should be inserted at a[i1:i1], i1==i2 in this case.
//
// 'e' (equal): a[i1:i2] == b[j1:j2]
func (m *SequenceMatcher) GetOpCodes() []OpCode {
if m.opCodes != nil {
return m.opCodes
}
i, j := 0, 0
matching := m.GetMatchingBlocks()
opCodes := make([]OpCode, 0, len(matching))
for _, m := range matching {
// invariant: we've pumped out correct diffs to change
// a[:i] into b[:j], and the next matching block is
// a[ai:ai+size] == b[bj:bj+size]. So we need to pump
// out a diff to change a[i:ai] into b[j:bj], pump out
// the matching block, and move (i,j) beyond the match
ai, bj, size := m.A, m.B, m.Size
tag := byte(0)
if i < ai && j < bj {
tag = 'r'
} else if i < ai {
tag = 'd'
} else if j < bj {
tag = 'i'
}
if tag > 0 {
opCodes = append(opCodes, OpCode{tag, i, ai, j, bj})
}
i, j = ai+size, bj+size
// the list of matching blocks is terminated by a
// sentinel with size 0
if size > 0 {
opCodes = append(opCodes, OpCode{'e', ai, i, bj, j})
}
}
m.opCodes = opCodes
return m.opCodes
}
// Isolate change clusters by eliminating ranges with no changes.
//
// Return a generator of groups with up to n lines of context.
// Each group is in the same format as returned by GetOpCodes().
func (m *SequenceMatcher) GetGroupedOpCodes(n int) [][]OpCode {
if n < 0 {
n = 3
}
codes := m.GetOpCodes()
if len(codes) == 0 {
codes = []OpCode{OpCode{'e', 0, 1, 0, 1}}
}
// Fixup leading and trailing groups if they show no changes.
if codes[0].Tag == 'e' {
c := codes[0]
i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
codes[0] = OpCode{c.Tag, max(i1, i2-n), i2, max(j1, j2-n), j2}
}
if codes[len(codes)-1].Tag == 'e' {
c := codes[len(codes)-1]
i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
codes[len(codes)-1] = OpCode{c.Tag, i1, min(i2, i1+n), j1, min(j2, j1+n)}
}
nn := n + n
groups := [][]OpCode{}
group := []OpCode{}
for _, c := range codes {
i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
// End the current group and start a new one whenever
// there is a large range with no changes.
if c.Tag == 'e' && i2-i1 > nn {
group = append(group, OpCode{c.Tag, i1, min(i2, i1+n),
j1, min(j2, j1+n)})
groups = append(groups, group)
group = []OpCode{}
i1, j1 = max(i1, i2-n), max(j1, j2-n)
}
group = append(group, OpCode{c.Tag, i1, i2, j1, j2})
}
if len(group) > 0 && !(len(group) == 1 && group[0].Tag == 'e') {
groups = append(groups, group)
}
return groups
}
// Return a measure of the sequences' similarity (float in [0,1]).
//
// Where T is the total number of elements in both sequences, and
// M is the number of matches, this is 2.0*M / T.
// Note that this is 1 if the sequences are identical, and 0 if
// they have nothing in common.
//
// .Ratio() is expensive to compute if you haven't already computed
// .GetMatchingBlocks() or .GetOpCodes(), in which case you may
// want to try .QuickRatio() or .RealQuickRation() first to get an
// upper bound.
func (m *SequenceMatcher) Ratio() float64 {
matches := 0
for _, m := range m.GetMatchingBlocks() {
matches += m.Size
}
return calculateRatio(matches, len(m.a)+len(m.b))
}
// Return an upper bound on ratio() relatively quickly.
//
// This isn't defined beyond that it is an upper bound on .Ratio(), and
// is faster to compute.
func (m *SequenceMatcher) QuickRatio() float64 {
// viewing a and b as multisets, set matches to the cardinality
// of their intersection; this counts the number of matches
// without regard to order, so is clearly an upper bound
if m.fullBCount == nil {
m.fullBCount = map[string]int{}
for _, s := range m.b {
m.fullBCount[s] = m.fullBCount[s] + 1
}
}
// avail[x] is the number of times x appears in 'b' less the
// number of times we've seen it in 'a' so far ... kinda
avail := map[string]int{}
matches := 0
for _, s := range m.a {
n, ok := avail[s]
if !ok {
n = m.fullBCount[s]
}
avail[s] = n - 1
if n > 0 {
matches += 1
}
}
return calculateRatio(matches, len(m.a)+len(m.b))
}
// Return an upper bound on ratio() very quickly.
//
// This isn't defined beyond that it is an upper bound on .Ratio(), and
// is faster to compute than either .Ratio() or .QuickRatio().
func (m *SequenceMatcher) RealQuickRatio() float64 {
la, lb := len(m.a), len(m.b)
return calculateRatio(min(la, lb), la+lb)
}
// Convert range to the "ed" format
func formatRangeUnified(start, stop int) string {
// Per the diff spec at http://www.unix.org/single_unix_specification/
beginning := start + 1 // lines start numbering with one
length := stop - start
if length == 1 {
return fmt.Sprintf("%d", beginning)
}
if length == 0 {
beginning -= 1 // empty ranges begin at line just before the range
}
return fmt.Sprintf("%d,%d", beginning, length)
}
// Unified diff parameters
type UnifiedDiff struct {
A []string // First sequence lines
FromFile string // First file name
FromDate string // First file time
B []string // Second sequence lines
ToFile string // Second file name
ToDate string // Second file time
Eol string // Headers end of line, defaults to LF
Context int // Number of context lines
}
// Compare two sequences of lines; generate the delta as a unified diff.
//
// Unified diffs are a compact way of showing line changes and a few
// lines of context. The number of context lines is set by 'n' which
// defaults to three.
//
// By default, the diff control lines (those with ---, +++, or @@) are
// created with a trailing newline. This is helpful so that inputs
// created from file.readlines() result in diffs that are suitable for
// file.writelines() since both the inputs and outputs have trailing
// newlines.
//
// For inputs that do not have trailing newlines, set the lineterm
// argument to "" so that the output will be uniformly newline free.
//
// The unidiff format normally has a header for filenames and modification
// times. Any or all of these may be specified using strings for
// 'fromfile', 'tofile', 'fromfiledate', and 'tofiledate'.
// The modification times are normally expressed in the ISO 8601 format.
func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error {
buf := bufio.NewWriter(writer)
defer buf.Flush()
wf := func(format string, args ...interface{}) error {
_, err := buf.WriteString(fmt.Sprintf(format, args...))
return err
}
ws := func(s string) error {
_, err := buf.WriteString(s)
return err
}
if len(diff.Eol) == 0 {
diff.Eol = "\n"
}
started := false
m := NewMatcher(diff.A, diff.B)
for _, g := range m.GetGroupedOpCodes(diff.Context) {
if !started {
started = true
fromDate := ""
if len(diff.FromDate) > 0 {
fromDate = "\t" + diff.FromDate
}
toDate := ""
if len(diff.ToDate) > 0 {
toDate = "\t" + diff.ToDate
}
if diff.FromFile != "" || diff.ToFile != "" {
err := wf("--- %s%s%s", diff.FromFile, fromDate, diff.Eol)
if err != nil {
return err
}
err = wf("+++ %s%s%s", diff.ToFile, toDate, diff.Eol)
if err != nil {
return err
}
}
}
first, last := g[0], g[len(g)-1]
range1 := formatRangeUnified(first.I1, last.I2)
range2 := formatRangeUnified(first.J1, last.J2)
if err := wf("@@ -%s +%s @@%s", range1, range2, diff.Eol); err != nil {
return err
}
for _, c := range g {
i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
if c.Tag == 'e' {
for _, line := range diff.A[i1:i2] {
if err := ws(" " + line); err != nil {
return err
}
}
continue
}
if c.Tag == 'r' || c.Tag == 'd' {
for _, line := range diff.A[i1:i2] {
if err := ws("-" + line); err != nil {
return err
}
}
}
if c.Tag == 'r' || c.Tag == 'i' {
for _, line := range diff.B[j1:j2] {
if err := ws("+" + line); err != nil {
return err
}
}
}
}
}
return nil
}
// Like WriteUnifiedDiff but returns the diff a string.
func GetUnifiedDiffString(diff UnifiedDiff) (string, error) {
w := &bytes.Buffer{}
err := WriteUnifiedDiff(w, diff)
return string(w.Bytes()), err
}
// Convert range to the "ed" format.
func formatRangeContext(start, stop int) string {
// Per the diff spec at http://www.unix.org/single_unix_specification/
beginning := start + 1 // lines start numbering with one
length := stop - start
if length == 0 {
beginning -= 1 // empty ranges begin at line just before the range
}
if length <= 1 {
return fmt.Sprintf("%d", beginning)
}
return fmt.Sprintf("%d,%d", beginning, beginning+length-1)
}
type ContextDiff UnifiedDiff
// Compare two sequences of lines; generate the delta as a context diff.
//
// Context diffs are a compact way of showing line changes and a few
// lines of context. The number of context lines is set by diff.Context
// which defaults to three.
//
// By default, the diff control lines (those with *** or ---) are
// created with a trailing newline.
//
// For inputs that do not have trailing newlines, set the diff.Eol
// argument to "" so that the output will be uniformly newline free.
//
// The context diff format normally has a header for filenames and
// modification times. Any or all of these may be specified using
// strings for diff.FromFile, diff.ToFile, diff.FromDate, diff.ToDate.
// The modification times are normally expressed in the ISO 8601 format.
// If not specified, the strings default to blanks.
func WriteContextDiff(writer io.Writer, diff ContextDiff) error {
buf := bufio.NewWriter(writer)
defer buf.Flush()
var diffErr error
wf := func(format string, args ...interface{}) {
_, err := buf.WriteString(fmt.Sprintf(format, args...))
if diffErr == nil && err != nil {
diffErr = err
}
}
ws := func(s string) {
_, err := buf.WriteString(s)
if diffErr == nil && err != nil {
diffErr = err
}
}
if len(diff.Eol) == 0 {
diff.Eol = "\n"
}
prefix := map[byte]string{
'i': "+ ",
'd': "- ",
'r': "! ",
'e': " ",
}
started := false
m := NewMatcher(diff.A, diff.B)
for _, g := range m.GetGroupedOpCodes(diff.Context) {
if !started {
started = true
fromDate := ""
if len(diff.FromDate) > 0 {
fromDate = "\t" + diff.FromDate
}
toDate := ""
if len(diff.ToDate) > 0 {
toDate = "\t" + diff.ToDate
}
if diff.FromFile != "" || diff.ToFile != "" {
wf("*** %s%s%s", diff.FromFile, fromDate, diff.Eol)
wf("--- %s%s%s", diff.ToFile, toDate, diff.Eol)
}
}
first, last := g[0], g[len(g)-1]
ws("***************" + diff.Eol)
range1 := formatRangeContext(first.I1, last.I2)
wf("*** %s ****%s", range1, diff.Eol)
for _, c := range g {
if c.Tag == 'r' || c.Tag == 'd' {
for _, cc := range g {
if cc.Tag == 'i' {
continue
}
for _, line := range diff.A[cc.I1:cc.I2] {
ws(prefix[cc.Tag] + line)
}
}
break
}
}
range2 := formatRangeContext(first.J1, last.J2)
wf("--- %s ----%s", range2, diff.Eol)
for _, c := range g {
if c.Tag == 'r' || c.Tag == 'i' {
for _, cc := range g {
if cc.Tag == 'd' {
continue
}
for _, line := range diff.B[cc.J1:cc.J2] {
ws(prefix[cc.Tag] + line)
}
}
break
}
}
}
return diffErr
}
// Like WriteContextDiff but returns the diff a string.
func GetContextDiffString(diff ContextDiff) (string, error) {
w := &bytes.Buffer{}
err := WriteContextDiff(w, diff)
return string(w.Bytes()), err
}
// Split a string on "\n" while preserving them. The output can be used
// as input for UnifiedDiff and ContextDiff structures.
func SplitLines(s string) []string {
lines := strings.SplitAfter(s, "\n")
lines[len(lines)-1] += "\n"
return lines
}

21
vendor/github.com/stretchr/testify/LICENSE generated vendored Normal file
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@ -0,0 +1,21 @@
MIT License
Copyright (c) 2012-2018 Mat Ryer and Tyler Bunnell
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

484
vendor/github.com/stretchr/testify/assert/assertion_format.go generated vendored Normal file
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@ -0,0 +1,484 @@
/*
* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
* THIS FILE MUST NOT BE EDITED BY HAND
*/
package assert
import (
http "net/http"
url "net/url"
time "time"
)
// Conditionf uses a Comparison to assert a complex condition.
func Conditionf(t TestingT, comp Comparison, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Condition(t, comp, append([]interface{}{msg}, args...)...)
}
// Containsf asserts that the specified string, list(array, slice...) or map contains the
// specified substring or element.
//
// assert.Containsf(t, "Hello World", "World", "error message %s", "formatted")
// assert.Containsf(t, ["Hello", "World"], "World", "error message %s", "formatted")
// assert.Containsf(t, {"Hello": "World"}, "Hello", "error message %s", "formatted")
func Containsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Contains(t, s, contains, append([]interface{}{msg}, args...)...)
}
// DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
func DirExistsf(t TestingT, path string, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return DirExists(t, path, append([]interface{}{msg}, args...)...)
}
// ElementsMatchf asserts that the specified listA(array, slice...) is equal to specified
// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
// the number of appearances of each of them in both lists should match.
//
// assert.ElementsMatchf(t, [1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
func ElementsMatchf(t TestingT, listA interface{}, listB interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return ElementsMatch(t, listA, listB, append([]interface{}{msg}, args...)...)
}
// Emptyf asserts that the specified object is empty. I.e. nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// assert.Emptyf(t, obj, "error message %s", "formatted")
func Emptyf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Empty(t, object, append([]interface{}{msg}, args...)...)
}
// Equalf asserts that two objects are equal.
//
// assert.Equalf(t, 123, 123, "error message %s", "formatted")
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses). Function equality
// cannot be determined and will always fail.
func Equalf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Equal(t, expected, actual, append([]interface{}{msg}, args...)...)
}
// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
// and that it is equal to the provided error.
//
// actualObj, err := SomeFunction()
// assert.EqualErrorf(t, err, expectedErrorString, "error message %s", "formatted")
func EqualErrorf(t TestingT, theError error, errString string, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return EqualError(t, theError, errString, append([]interface{}{msg}, args...)...)
}
// EqualValuesf asserts that two objects are equal or convertable to the same types
// and equal.
//
// assert.EqualValuesf(t, uint32(123, "error message %s", "formatted"), int32(123))
func EqualValuesf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return EqualValues(t, expected, actual, append([]interface{}{msg}, args...)...)
}
// Errorf asserts that a function returned an error (i.e. not `nil`).
//
// actualObj, err := SomeFunction()
// if assert.Errorf(t, err, "error message %s", "formatted") {
// assert.Equal(t, expectedErrorf, err)
// }
func Errorf(t TestingT, err error, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Error(t, err, append([]interface{}{msg}, args...)...)
}
// Exactlyf asserts that two objects are equal in value and type.
//
// assert.Exactlyf(t, int32(123, "error message %s", "formatted"), int64(123))
func Exactlyf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Exactly(t, expected, actual, append([]interface{}{msg}, args...)...)
}
// Failf reports a failure through
func Failf(t TestingT, failureMessage string, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Fail(t, failureMessage, append([]interface{}{msg}, args...)...)
}
// FailNowf fails test
func FailNowf(t TestingT, failureMessage string, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return FailNow(t, failureMessage, append([]interface{}{msg}, args...)...)
}
// Falsef asserts that the specified value is false.
//
// assert.Falsef(t, myBool, "error message %s", "formatted")
func Falsef(t TestingT, value bool, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return False(t, value, append([]interface{}{msg}, args...)...)
}
// FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
func FileExistsf(t TestingT, path string, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return FileExists(t, path, append([]interface{}{msg}, args...)...)
}
// HTTPBodyContainsf asserts that a specified handler returns a
// body that contains a string.
//
// assert.HTTPBodyContainsf(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPBodyContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return HTTPBodyContains(t, handler, method, url, values, str, append([]interface{}{msg}, args...)...)
}
// HTTPBodyNotContainsf asserts that a specified handler returns a
// body that does not contain a string.
//
// assert.HTTPBodyNotContainsf(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPBodyNotContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return HTTPBodyNotContains(t, handler, method, url, values, str, append([]interface{}{msg}, args...)...)
}
// HTTPErrorf asserts that a specified handler returns an error status code.
//
// assert.HTTPErrorf(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
func HTTPErrorf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return HTTPError(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
}
// HTTPRedirectf asserts that a specified handler returns a redirect status code.
//
// assert.HTTPRedirectf(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
func HTTPRedirectf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return HTTPRedirect(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
}
// HTTPSuccessf asserts that a specified handler returns a success status code.
//
// assert.HTTPSuccessf(t, myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPSuccessf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return HTTPSuccess(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
}
// Implementsf asserts that an object is implemented by the specified interface.
//
// assert.Implementsf(t, (*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
func Implementsf(t TestingT, interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Implements(t, interfaceObject, object, append([]interface{}{msg}, args...)...)
}
// InDeltaf asserts that the two numerals are within delta of each other.
//
// assert.InDeltaf(t, math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
func InDeltaf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return InDelta(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
}
// InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
func InDeltaMapValuesf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return InDeltaMapValues(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
}
// InDeltaSlicef is the same as InDelta, except it compares two slices.
func InDeltaSlicef(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return InDeltaSlice(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
}
// InEpsilonf asserts that expected and actual have a relative error less than epsilon
func InEpsilonf(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return InEpsilon(t, expected, actual, epsilon, append([]interface{}{msg}, args...)...)
}
// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
func InEpsilonSlicef(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return InEpsilonSlice(t, expected, actual, epsilon, append([]interface{}{msg}, args...)...)
}
// IsTypef asserts that the specified objects are of the same type.
func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return IsType(t, expectedType, object, append([]interface{}{msg}, args...)...)
}
// JSONEqf asserts that two JSON strings are equivalent.
//
// assert.JSONEqf(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
func JSONEqf(t TestingT, expected string, actual string, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return JSONEq(t, expected, actual, append([]interface{}{msg}, args...)...)
}
// Lenf asserts that the specified object has specific length.
// Lenf also fails if the object has a type that len() not accept.
//
// assert.Lenf(t, mySlice, 3, "error message %s", "formatted")
func Lenf(t TestingT, object interface{}, length int, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Len(t, object, length, append([]interface{}{msg}, args...)...)
}
// Nilf asserts that the specified object is nil.
//
// assert.Nilf(t, err, "error message %s", "formatted")
func Nilf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Nil(t, object, append([]interface{}{msg}, args...)...)
}
// NoErrorf asserts that a function returned no error (i.e. `nil`).
//
// actualObj, err := SomeFunction()
// if assert.NoErrorf(t, err, "error message %s", "formatted") {
// assert.Equal(t, expectedObj, actualObj)
// }
func NoErrorf(t TestingT, err error, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NoError(t, err, append([]interface{}{msg}, args...)...)
}
// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
// specified substring or element.
//
// assert.NotContainsf(t, "Hello World", "Earth", "error message %s", "formatted")
// assert.NotContainsf(t, ["Hello", "World"], "Earth", "error message %s", "formatted")
// assert.NotContainsf(t, {"Hello": "World"}, "Earth", "error message %s", "formatted")
func NotContainsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NotContains(t, s, contains, append([]interface{}{msg}, args...)...)
}
// NotEmptyf asserts that the specified object is NOT empty. I.e. not nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// if assert.NotEmptyf(t, obj, "error message %s", "formatted") {
// assert.Equal(t, "two", obj[1])
// }
func NotEmptyf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NotEmpty(t, object, append([]interface{}{msg}, args...)...)
}
// NotEqualf asserts that the specified values are NOT equal.
//
// assert.NotEqualf(t, obj1, obj2, "error message %s", "formatted")
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses).
func NotEqualf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NotEqual(t, expected, actual, append([]interface{}{msg}, args...)...)
}
// NotNilf asserts that the specified object is not nil.
//
// assert.NotNilf(t, err, "error message %s", "formatted")
func NotNilf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NotNil(t, object, append([]interface{}{msg}, args...)...)
}
// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
//
// assert.NotPanicsf(t, func(){ RemainCalm() }, "error message %s", "formatted")
func NotPanicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NotPanics(t, f, append([]interface{}{msg}, args...)...)
}
// NotRegexpf asserts that a specified regexp does not match a string.
//
// assert.NotRegexpf(t, regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
// assert.NotRegexpf(t, "^start", "it's not starting", "error message %s", "formatted")
func NotRegexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NotRegexp(t, rx, str, append([]interface{}{msg}, args...)...)
}
// NotSubsetf asserts that the specified list(array, slice...) contains not all
// elements given in the specified subset(array, slice...).
//
// assert.NotSubsetf(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
func NotSubsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NotSubset(t, list, subset, append([]interface{}{msg}, args...)...)
}
// NotZerof asserts that i is not the zero value for its type.
func NotZerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return NotZero(t, i, append([]interface{}{msg}, args...)...)
}
// Panicsf asserts that the code inside the specified PanicTestFunc panics.
//
// assert.Panicsf(t, func(){ GoCrazy() }, "error message %s", "formatted")
func Panicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Panics(t, f, append([]interface{}{msg}, args...)...)
}
// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
// the recovered panic value equals the expected panic value.
//
// assert.PanicsWithValuef(t, "crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
func PanicsWithValuef(t TestingT, expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return PanicsWithValue(t, expected, f, append([]interface{}{msg}, args...)...)
}
// Regexpf asserts that a specified regexp matches a string.
//
// assert.Regexpf(t, regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
// assert.Regexpf(t, "start...$", "it's not starting", "error message %s", "formatted")
func Regexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Regexp(t, rx, str, append([]interface{}{msg}, args...)...)
}
// Subsetf asserts that the specified list(array, slice...) contains all
// elements given in the specified subset(array, slice...).
//
// assert.Subsetf(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
func Subsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Subset(t, list, subset, append([]interface{}{msg}, args...)...)
}
// Truef asserts that the specified value is true.
//
// assert.Truef(t, myBool, "error message %s", "formatted")
func Truef(t TestingT, value bool, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return True(t, value, append([]interface{}{msg}, args...)...)
}
// WithinDurationf asserts that the two times are within duration delta of each other.
//
// assert.WithinDurationf(t, time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
func WithinDurationf(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return WithinDuration(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
}
// Zerof asserts that i is the zero value for its type.
func Zerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
return Zero(t, i, append([]interface{}{msg}, args...)...)
}

5
vendor/github.com/stretchr/testify/assert/assertion_format.go.tmpl generated vendored Normal file
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@ -0,0 +1,5 @@
{{.CommentFormat}}
func {{.DocInfo.Name}}f(t TestingT, {{.ParamsFormat}}) bool {
if h, ok := t.(tHelper); ok { h.Helper() }
return {{.DocInfo.Name}}(t, {{.ForwardedParamsFormat}})
}

956
vendor/github.com/stretchr/testify/assert/assertion_forward.go generated vendored Normal file
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@ -0,0 +1,956 @@
/*
* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
* THIS FILE MUST NOT BE EDITED BY HAND
*/
package assert
import (
http "net/http"
url "net/url"
time "time"
)
// Condition uses a Comparison to assert a complex condition.
func (a *Assertions) Condition(comp Comparison, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Condition(a.t, comp, msgAndArgs...)
}
// Conditionf uses a Comparison to assert a complex condition.
func (a *Assertions) Conditionf(comp Comparison, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Conditionf(a.t, comp, msg, args...)
}
// Contains asserts that the specified string, list(array, slice...) or map contains the
// specified substring or element.
//
// a.Contains("Hello World", "World")
// a.Contains(["Hello", "World"], "World")
// a.Contains({"Hello": "World"}, "Hello")
func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Contains(a.t, s, contains, msgAndArgs...)
}
// Containsf asserts that the specified string, list(array, slice...) or map contains the
// specified substring or element.
//
// a.Containsf("Hello World", "World", "error message %s", "formatted")
// a.Containsf(["Hello", "World"], "World", "error message %s", "formatted")
// a.Containsf({"Hello": "World"}, "Hello", "error message %s", "formatted")
func (a *Assertions) Containsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Containsf(a.t, s, contains, msg, args...)
}
// DirExists checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
func (a *Assertions) DirExists(path string, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return DirExists(a.t, path, msgAndArgs...)
}
// DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
func (a *Assertions) DirExistsf(path string, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return DirExistsf(a.t, path, msg, args...)
}
// ElementsMatch asserts that the specified listA(array, slice...) is equal to specified
// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
// the number of appearances of each of them in both lists should match.
//
// a.ElementsMatch([1, 3, 2, 3], [1, 3, 3, 2])
func (a *Assertions) ElementsMatch(listA interface{}, listB interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return ElementsMatch(a.t, listA, listB, msgAndArgs...)
}
// ElementsMatchf asserts that the specified listA(array, slice...) is equal to specified
// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
// the number of appearances of each of them in both lists should match.
//
// a.ElementsMatchf([1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
func (a *Assertions) ElementsMatchf(listA interface{}, listB interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return ElementsMatchf(a.t, listA, listB, msg, args...)
}
// Empty asserts that the specified object is empty. I.e. nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// a.Empty(obj)
func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Empty(a.t, object, msgAndArgs...)
}
// Emptyf asserts that the specified object is empty. I.e. nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// a.Emptyf(obj, "error message %s", "formatted")
func (a *Assertions) Emptyf(object interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Emptyf(a.t, object, msg, args...)
}
// Equal asserts that two objects are equal.
//
// a.Equal(123, 123)
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses). Function equality
// cannot be determined and will always fail.
func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Equal(a.t, expected, actual, msgAndArgs...)
}
// EqualError asserts that a function returned an error (i.e. not `nil`)
// and that it is equal to the provided error.
//
// actualObj, err := SomeFunction()
// a.EqualError(err, expectedErrorString)
func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return EqualError(a.t, theError, errString, msgAndArgs...)
}
// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
// and that it is equal to the provided error.
//
// actualObj, err := SomeFunction()
// a.EqualErrorf(err, expectedErrorString, "error message %s", "formatted")
func (a *Assertions) EqualErrorf(theError error, errString string, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return EqualErrorf(a.t, theError, errString, msg, args...)
}
// EqualValues asserts that two objects are equal or convertable to the same types
// and equal.
//
// a.EqualValues(uint32(123), int32(123))
func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return EqualValues(a.t, expected, actual, msgAndArgs...)
}
// EqualValuesf asserts that two objects are equal or convertable to the same types
// and equal.
//
// a.EqualValuesf(uint32(123, "error message %s", "formatted"), int32(123))
func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return EqualValuesf(a.t, expected, actual, msg, args...)
}
// Equalf asserts that two objects are equal.
//
// a.Equalf(123, 123, "error message %s", "formatted")
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses). Function equality
// cannot be determined and will always fail.
func (a *Assertions) Equalf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Equalf(a.t, expected, actual, msg, args...)
}
// Error asserts that a function returned an error (i.e. not `nil`).
//
// actualObj, err := SomeFunction()
// if a.Error(err) {
// assert.Equal(t, expectedError, err)
// }
func (a *Assertions) Error(err error, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Error(a.t, err, msgAndArgs...)
}
// Errorf asserts that a function returned an error (i.e. not `nil`).
//
// actualObj, err := SomeFunction()
// if a.Errorf(err, "error message %s", "formatted") {
// assert.Equal(t, expectedErrorf, err)
// }
func (a *Assertions) Errorf(err error, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Errorf(a.t, err, msg, args...)
}
// Exactly asserts that two objects are equal in value and type.
//
// a.Exactly(int32(123), int64(123))
func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Exactly(a.t, expected, actual, msgAndArgs...)
}
// Exactlyf asserts that two objects are equal in value and type.
//
// a.Exactlyf(int32(123, "error message %s", "formatted"), int64(123))
func (a *Assertions) Exactlyf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Exactlyf(a.t, expected, actual, msg, args...)
}
// Fail reports a failure through
func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Fail(a.t, failureMessage, msgAndArgs...)
}
// FailNow fails test
func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return FailNow(a.t, failureMessage, msgAndArgs...)
}
// FailNowf fails test
func (a *Assertions) FailNowf(failureMessage string, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return FailNowf(a.t, failureMessage, msg, args...)
}
// Failf reports a failure through
func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Failf(a.t, failureMessage, msg, args...)
}
// False asserts that the specified value is false.
//
// a.False(myBool)
func (a *Assertions) False(value bool, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return False(a.t, value, msgAndArgs...)
}
// Falsef asserts that the specified value is false.
//
// a.Falsef(myBool, "error message %s", "formatted")
func (a *Assertions) Falsef(value bool, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Falsef(a.t, value, msg, args...)
}
// FileExists checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
func (a *Assertions) FileExists(path string, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return FileExists(a.t, path, msgAndArgs...)
}
// FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
func (a *Assertions) FileExistsf(path string, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return FileExistsf(a.t, path, msg, args...)
}
// HTTPBodyContains asserts that a specified handler returns a
// body that contains a string.
//
// a.HTTPBodyContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPBodyContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPBodyContains(a.t, handler, method, url, values, str, msgAndArgs...)
}
// HTTPBodyContainsf asserts that a specified handler returns a
// body that contains a string.
//
// a.HTTPBodyContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPBodyContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPBodyContainsf(a.t, handler, method, url, values, str, msg, args...)
}
// HTTPBodyNotContains asserts that a specified handler returns a
// body that does not contain a string.
//
// a.HTTPBodyNotContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPBodyNotContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPBodyNotContains(a.t, handler, method, url, values, str, msgAndArgs...)
}
// HTTPBodyNotContainsf asserts that a specified handler returns a
// body that does not contain a string.
//
// a.HTTPBodyNotContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPBodyNotContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPBodyNotContainsf(a.t, handler, method, url, values, str, msg, args...)
}
// HTTPError asserts that a specified handler returns an error status code.
//
// a.HTTPError(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPError(a.t, handler, method, url, values, msgAndArgs...)
}
// HTTPErrorf asserts that a specified handler returns an error status code.
//
// a.HTTPErrorf(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
func (a *Assertions) HTTPErrorf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPErrorf(a.t, handler, method, url, values, msg, args...)
}
// HTTPRedirect asserts that a specified handler returns a redirect status code.
//
// a.HTTPRedirect(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPRedirect(a.t, handler, method, url, values, msgAndArgs...)
}
// HTTPRedirectf asserts that a specified handler returns a redirect status code.
//
// a.HTTPRedirectf(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
func (a *Assertions) HTTPRedirectf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPRedirectf(a.t, handler, method, url, values, msg, args...)
}
// HTTPSuccess asserts that a specified handler returns a success status code.
//
// a.HTTPSuccess(myHandler, "POST", "http://www.google.com", nil)
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPSuccess(a.t, handler, method, url, values, msgAndArgs...)
}
// HTTPSuccessf asserts that a specified handler returns a success status code.
//
// a.HTTPSuccessf(myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPSuccessf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return HTTPSuccessf(a.t, handler, method, url, values, msg, args...)
}
// Implements asserts that an object is implemented by the specified interface.
//
// a.Implements((*MyInterface)(nil), new(MyObject))
func (a *Assertions) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Implements(a.t, interfaceObject, object, msgAndArgs...)
}
// Implementsf asserts that an object is implemented by the specified interface.
//
// a.Implementsf((*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Implementsf(a.t, interfaceObject, object, msg, args...)
}
// InDelta asserts that the two numerals are within delta of each other.
//
// a.InDelta(math.Pi, (22 / 7.0), 0.01)
func (a *Assertions) InDelta(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InDelta(a.t, expected, actual, delta, msgAndArgs...)
}
// InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
func (a *Assertions) InDeltaMapValues(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InDeltaMapValues(a.t, expected, actual, delta, msgAndArgs...)
}
// InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
func (a *Assertions) InDeltaMapValuesf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InDeltaMapValuesf(a.t, expected, actual, delta, msg, args...)
}
// InDeltaSlice is the same as InDelta, except it compares two slices.
func (a *Assertions) InDeltaSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InDeltaSlice(a.t, expected, actual, delta, msgAndArgs...)
}
// InDeltaSlicef is the same as InDelta, except it compares two slices.
func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InDeltaSlicef(a.t, expected, actual, delta, msg, args...)
}
// InDeltaf asserts that the two numerals are within delta of each other.
//
// a.InDeltaf(math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
func (a *Assertions) InDeltaf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InDeltaf(a.t, expected, actual, delta, msg, args...)
}
// InEpsilon asserts that expected and actual have a relative error less than epsilon
func (a *Assertions) InEpsilon(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InEpsilon(a.t, expected, actual, epsilon, msgAndArgs...)
}
// InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InEpsilonSlice(a.t, expected, actual, epsilon, msgAndArgs...)
}
// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
func (a *Assertions) InEpsilonSlicef(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InEpsilonSlicef(a.t, expected, actual, epsilon, msg, args...)
}
// InEpsilonf asserts that expected and actual have a relative error less than epsilon
func (a *Assertions) InEpsilonf(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return InEpsilonf(a.t, expected, actual, epsilon, msg, args...)
}
// IsType asserts that the specified objects are of the same type.
func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return IsType(a.t, expectedType, object, msgAndArgs...)
}
// IsTypef asserts that the specified objects are of the same type.
func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return IsTypef(a.t, expectedType, object, msg, args...)
}
// JSONEq asserts that two JSON strings are equivalent.
//
// a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return JSONEq(a.t, expected, actual, msgAndArgs...)
}
// JSONEqf asserts that two JSON strings are equivalent.
//
// a.JSONEqf(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
func (a *Assertions) JSONEqf(expected string, actual string, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return JSONEqf(a.t, expected, actual, msg, args...)
}
// Len asserts that the specified object has specific length.
// Len also fails if the object has a type that len() not accept.
//
// a.Len(mySlice, 3)
func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Len(a.t, object, length, msgAndArgs...)
}
// Lenf asserts that the specified object has specific length.
// Lenf also fails if the object has a type that len() not accept.
//
// a.Lenf(mySlice, 3, "error message %s", "formatted")
func (a *Assertions) Lenf(object interface{}, length int, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Lenf(a.t, object, length, msg, args...)
}
// Nil asserts that the specified object is nil.
//
// a.Nil(err)
func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Nil(a.t, object, msgAndArgs...)
}
// Nilf asserts that the specified object is nil.
//
// a.Nilf(err, "error message %s", "formatted")
func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Nilf(a.t, object, msg, args...)
}
// NoError asserts that a function returned no error (i.e. `nil`).
//
// actualObj, err := SomeFunction()
// if a.NoError(err) {
// assert.Equal(t, expectedObj, actualObj)
// }
func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NoError(a.t, err, msgAndArgs...)
}
// NoErrorf asserts that a function returned no error (i.e. `nil`).
//
// actualObj, err := SomeFunction()
// if a.NoErrorf(err, "error message %s", "formatted") {
// assert.Equal(t, expectedObj, actualObj)
// }
func (a *Assertions) NoErrorf(err error, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NoErrorf(a.t, err, msg, args...)
}
// NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
// specified substring or element.
//
// a.NotContains("Hello World", "Earth")
// a.NotContains(["Hello", "World"], "Earth")
// a.NotContains({"Hello": "World"}, "Earth")
func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotContains(a.t, s, contains, msgAndArgs...)
}
// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
// specified substring or element.
//
// a.NotContainsf("Hello World", "Earth", "error message %s", "formatted")
// a.NotContainsf(["Hello", "World"], "Earth", "error message %s", "formatted")
// a.NotContainsf({"Hello": "World"}, "Earth", "error message %s", "formatted")
func (a *Assertions) NotContainsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotContainsf(a.t, s, contains, msg, args...)
}
// NotEmpty asserts that the specified object is NOT empty. I.e. not nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// if a.NotEmpty(obj) {
// assert.Equal(t, "two", obj[1])
// }
func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotEmpty(a.t, object, msgAndArgs...)
}
// NotEmptyf asserts that the specified object is NOT empty. I.e. not nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// if a.NotEmptyf(obj, "error message %s", "formatted") {
// assert.Equal(t, "two", obj[1])
// }
func (a *Assertions) NotEmptyf(object interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotEmptyf(a.t, object, msg, args...)
}
// NotEqual asserts that the specified values are NOT equal.
//
// a.NotEqual(obj1, obj2)
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses).
func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotEqual(a.t, expected, actual, msgAndArgs...)
}
// NotEqualf asserts that the specified values are NOT equal.
//
// a.NotEqualf(obj1, obj2, "error message %s", "formatted")
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses).
func (a *Assertions) NotEqualf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotEqualf(a.t, expected, actual, msg, args...)
}
// NotNil asserts that the specified object is not nil.
//
// a.NotNil(err)
func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotNil(a.t, object, msgAndArgs...)
}
// NotNilf asserts that the specified object is not nil.
//
// a.NotNilf(err, "error message %s", "formatted")
func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotNilf(a.t, object, msg, args...)
}
// NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
//
// a.NotPanics(func(){ RemainCalm() })
func (a *Assertions) NotPanics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotPanics(a.t, f, msgAndArgs...)
}
// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
//
// a.NotPanicsf(func(){ RemainCalm() }, "error message %s", "formatted")
func (a *Assertions) NotPanicsf(f PanicTestFunc, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotPanicsf(a.t, f, msg, args...)
}
// NotRegexp asserts that a specified regexp does not match a string.
//
// a.NotRegexp(regexp.MustCompile("starts"), "it's starting")
// a.NotRegexp("^start", "it's not starting")
func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotRegexp(a.t, rx, str, msgAndArgs...)
}
// NotRegexpf asserts that a specified regexp does not match a string.
//
// a.NotRegexpf(regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
// a.NotRegexpf("^start", "it's not starting", "error message %s", "formatted")
func (a *Assertions) NotRegexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotRegexpf(a.t, rx, str, msg, args...)
}
// NotSubset asserts that the specified list(array, slice...) contains not all
// elements given in the specified subset(array, slice...).
//
// a.NotSubset([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
func (a *Assertions) NotSubset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotSubset(a.t, list, subset, msgAndArgs...)
}
// NotSubsetf asserts that the specified list(array, slice...) contains not all
// elements given in the specified subset(array, slice...).
//
// a.NotSubsetf([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
func (a *Assertions) NotSubsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotSubsetf(a.t, list, subset, msg, args...)
}
// NotZero asserts that i is not the zero value for its type.
func (a *Assertions) NotZero(i interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotZero(a.t, i, msgAndArgs...)
}
// NotZerof asserts that i is not the zero value for its type.
func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return NotZerof(a.t, i, msg, args...)
}
// Panics asserts that the code inside the specified PanicTestFunc panics.
//
// a.Panics(func(){ GoCrazy() })
func (a *Assertions) Panics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Panics(a.t, f, msgAndArgs...)
}
// PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that
// the recovered panic value equals the expected panic value.
//
// a.PanicsWithValue("crazy error", func(){ GoCrazy() })
func (a *Assertions) PanicsWithValue(expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return PanicsWithValue(a.t, expected, f, msgAndArgs...)
}
// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
// the recovered panic value equals the expected panic value.
//
// a.PanicsWithValuef("crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
func (a *Assertions) PanicsWithValuef(expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return PanicsWithValuef(a.t, expected, f, msg, args...)
}
// Panicsf asserts that the code inside the specified PanicTestFunc panics.
//
// a.Panicsf(func(){ GoCrazy() }, "error message %s", "formatted")
func (a *Assertions) Panicsf(f PanicTestFunc, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Panicsf(a.t, f, msg, args...)
}
// Regexp asserts that a specified regexp matches a string.
//
// a.Regexp(regexp.MustCompile("start"), "it's starting")
// a.Regexp("start...$", "it's not starting")
func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Regexp(a.t, rx, str, msgAndArgs...)
}
// Regexpf asserts that a specified regexp matches a string.
//
// a.Regexpf(regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
// a.Regexpf("start...$", "it's not starting", "error message %s", "formatted")
func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Regexpf(a.t, rx, str, msg, args...)
}
// Subset asserts that the specified list(array, slice...) contains all
// elements given in the specified subset(array, slice...).
//
// a.Subset([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Subset(a.t, list, subset, msgAndArgs...)
}
// Subsetf asserts that the specified list(array, slice...) contains all
// elements given in the specified subset(array, slice...).
//
// a.Subsetf([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
func (a *Assertions) Subsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Subsetf(a.t, list, subset, msg, args...)
}
// True asserts that the specified value is true.
//
// a.True(myBool)
func (a *Assertions) True(value bool, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return True(a.t, value, msgAndArgs...)
}
// Truef asserts that the specified value is true.
//
// a.Truef(myBool, "error message %s", "formatted")
func (a *Assertions) Truef(value bool, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Truef(a.t, value, msg, args...)
}
// WithinDuration asserts that the two times are within duration delta of each other.
//
// a.WithinDuration(time.Now(), time.Now(), 10*time.Second)
func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return WithinDuration(a.t, expected, actual, delta, msgAndArgs...)
}
// WithinDurationf asserts that the two times are within duration delta of each other.
//
// a.WithinDurationf(time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
func (a *Assertions) WithinDurationf(expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return WithinDurationf(a.t, expected, actual, delta, msg, args...)
}
// Zero asserts that i is the zero value for its type.
func (a *Assertions) Zero(i interface{}, msgAndArgs ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Zero(a.t, i, msgAndArgs...)
}
// Zerof asserts that i is the zero value for its type.
func (a *Assertions) Zerof(i interface{}, msg string, args ...interface{}) bool {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
return Zerof(a.t, i, msg, args...)
}

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{{.CommentWithoutT "a"}}
func (a *Assertions) {{.DocInfo.Name}}({{.Params}}) bool {
if h, ok := a.t.(tHelper); ok { h.Helper() }
return {{.DocInfo.Name}}(a.t, {{.ForwardedParams}})
}

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// Package assert provides a set of comprehensive testing tools for use with the normal Go testing system.
//
// Example Usage
//
// The following is a complete example using assert in a standard test function:
// import (
// "testing"
// "github.com/stretchr/testify/assert"
// )
//
// func TestSomething(t *testing.T) {
//
// var a string = "Hello"
// var b string = "Hello"
//
// assert.Equal(t, a, b, "The two words should be the same.")
//
// }
//
// if you assert many times, use the format below:
//
// import (
// "testing"
// "github.com/stretchr/testify/assert"
// )
//
// func TestSomething(t *testing.T) {
// assert := assert.New(t)
//
// var a string = "Hello"
// var b string = "Hello"
//
// assert.Equal(a, b, "The two words should be the same.")
// }
//
// Assertions
//
// Assertions allow you to easily write test code, and are global funcs in the `assert` package.
// All assertion functions take, as the first argument, the `*testing.T` object provided by the
// testing framework. This allows the assertion funcs to write the failings and other details to
// the correct place.
//
// Every assertion function also takes an optional string message as the final argument,
// allowing custom error messages to be appended to the message the assertion method outputs.
package assert

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package assert
import (
"errors"
)
// AnError is an error instance useful for testing. If the code does not care
// about error specifics, and only needs to return the error for example, this
// error should be used to make the test code more readable.
var AnError = errors.New("assert.AnError general error for testing")

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package assert
// Assertions provides assertion methods around the
// TestingT interface.
type Assertions struct {
t TestingT
}
// New makes a new Assertions object for the specified TestingT.
func New(t TestingT) *Assertions {
return &Assertions{
t: t,
}
}
//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_forward.go.tmpl -include-format-funcs

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package assert
import (
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"strings"
)
// httpCode is a helper that returns HTTP code of the response. It returns -1 and
// an error if building a new request fails.
func httpCode(handler http.HandlerFunc, method, url string, values url.Values) (int, error) {
w := httptest.NewRecorder()
req, err := http.NewRequest(method, url, nil)
if err != nil {
return -1, err
}
req.URL.RawQuery = values.Encode()
handler(w, req)
return w.Code, nil
}
// HTTPSuccess asserts that a specified handler returns a success status code.
//
// assert.HTTPSuccess(t, myHandler, "POST", "http://www.google.com", nil)
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
code, err := httpCode(handler, method, url, values)
if err != nil {
Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
return false
}
isSuccessCode := code >= http.StatusOK && code <= http.StatusPartialContent
if !isSuccessCode {
Fail(t, fmt.Sprintf("Expected HTTP success status code for %q but received %d", url+"?"+values.Encode(), code))
}
return isSuccessCode
}
// HTTPRedirect asserts that a specified handler returns a redirect status code.
//
// assert.HTTPRedirect(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
code, err := httpCode(handler, method, url, values)
if err != nil {
Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
return false
}
isRedirectCode := code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
if !isRedirectCode {
Fail(t, fmt.Sprintf("Expected HTTP redirect status code for %q but received %d", url+"?"+values.Encode(), code))
}
return isRedirectCode
}
// HTTPError asserts that a specified handler returns an error status code.
//
// assert.HTTPError(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPError(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
code, err := httpCode(handler, method, url, values)
if err != nil {
Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
return false
}
isErrorCode := code >= http.StatusBadRequest
if !isErrorCode {
Fail(t, fmt.Sprintf("Expected HTTP error status code for %q but received %d", url+"?"+values.Encode(), code))
}
return isErrorCode
}
// HTTPBody is a helper that returns HTTP body of the response. It returns
// empty string if building a new request fails.
func HTTPBody(handler http.HandlerFunc, method, url string, values url.Values) string {
w := httptest.NewRecorder()
req, err := http.NewRequest(method, url+"?"+values.Encode(), nil)
if err != nil {
return ""
}
handler(w, req)
return w.Body.String()
}
// HTTPBodyContains asserts that a specified handler returns a
// body that contains a string.
//
// assert.HTTPBodyContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
body := HTTPBody(handler, method, url, values)
contains := strings.Contains(body, fmt.Sprint(str))
if !contains {
Fail(t, fmt.Sprintf("Expected response body for \"%s\" to contain \"%s\" but found \"%s\"", url+"?"+values.Encode(), str, body))
}
return contains
}
// HTTPBodyNotContains asserts that a specified handler returns a
// body that does not contain a string.
//
// assert.HTTPBodyNotContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPBodyNotContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
body := HTTPBody(handler, method, url, values)
contains := strings.Contains(body, fmt.Sprint(str))
if contains {
Fail(t, fmt.Sprintf("Expected response body for \"%s\" to NOT contain \"%s\" but found \"%s\"", url+"?"+values.Encode(), str, body))
}
return !contains
}

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// Package require implements the same assertions as the `assert` package but
// stops test execution when a test fails.
//
// Example Usage
//
// The following is a complete example using require in a standard test function:
// import (
// "testing"
// "github.com/stretchr/testify/require"
// )
//
// func TestSomething(t *testing.T) {
//
// var a string = "Hello"
// var b string = "Hello"
//
// require.Equal(t, a, b, "The two words should be the same.")
//
// }
//
// Assertions
//
// The `require` package have same global functions as in the `assert` package,
// but instead of returning a boolean result they call `t.FailNow()`.
//
// Every assertion function also takes an optional string message as the final argument,
// allowing custom error messages to be appended to the message the assertion method outputs.
package require

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package require
// Assertions provides assertion methods around the
// TestingT interface.
type Assertions struct {
t TestingT
}
// New makes a new Assertions object for the specified TestingT.
func New(t TestingT) *Assertions {
return &Assertions{
t: t,
}
}
//go:generate go run ../_codegen/main.go -output-package=require -template=require_forward.go.tmpl -include-format-funcs

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{{.Comment}}
func {{.DocInfo.Name}}(t TestingT, {{.Params}}) {
if assert.{{.DocInfo.Name}}(t, {{.ForwardedParams}}) { return }
if h, ok := t.(tHelper); ok { h.Helper() }
t.FailNow()
}

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/*
* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
* THIS FILE MUST NOT BE EDITED BY HAND
*/
package require
import (
assert "github.com/stretchr/testify/assert"
http "net/http"
url "net/url"
time "time"
)
// Condition uses a Comparison to assert a complex condition.
func (a *Assertions) Condition(comp assert.Comparison, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Condition(a.t, comp, msgAndArgs...)
}
// Conditionf uses a Comparison to assert a complex condition.
func (a *Assertions) Conditionf(comp assert.Comparison, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Conditionf(a.t, comp, msg, args...)
}
// Contains asserts that the specified string, list(array, slice...) or map contains the
// specified substring or element.
//
// a.Contains("Hello World", "World")
// a.Contains(["Hello", "World"], "World")
// a.Contains({"Hello": "World"}, "Hello")
func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Contains(a.t, s, contains, msgAndArgs...)
}
// Containsf asserts that the specified string, list(array, slice...) or map contains the
// specified substring or element.
//
// a.Containsf("Hello World", "World", "error message %s", "formatted")
// a.Containsf(["Hello", "World"], "World", "error message %s", "formatted")
// a.Containsf({"Hello": "World"}, "Hello", "error message %s", "formatted")
func (a *Assertions) Containsf(s interface{}, contains interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Containsf(a.t, s, contains, msg, args...)
}
// DirExists checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
func (a *Assertions) DirExists(path string, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
DirExists(a.t, path, msgAndArgs...)
}
// DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
func (a *Assertions) DirExistsf(path string, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
DirExistsf(a.t, path, msg, args...)
}
// ElementsMatch asserts that the specified listA(array, slice...) is equal to specified
// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
// the number of appearances of each of them in both lists should match.
//
// a.ElementsMatch([1, 3, 2, 3], [1, 3, 3, 2])
func (a *Assertions) ElementsMatch(listA interface{}, listB interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
ElementsMatch(a.t, listA, listB, msgAndArgs...)
}
// ElementsMatchf asserts that the specified listA(array, slice...) is equal to specified
// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
// the number of appearances of each of them in both lists should match.
//
// a.ElementsMatchf([1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
func (a *Assertions) ElementsMatchf(listA interface{}, listB interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
ElementsMatchf(a.t, listA, listB, msg, args...)
}
// Empty asserts that the specified object is empty. I.e. nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// a.Empty(obj)
func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Empty(a.t, object, msgAndArgs...)
}
// Emptyf asserts that the specified object is empty. I.e. nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// a.Emptyf(obj, "error message %s", "formatted")
func (a *Assertions) Emptyf(object interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Emptyf(a.t, object, msg, args...)
}
// Equal asserts that two objects are equal.
//
// a.Equal(123, 123)
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses). Function equality
// cannot be determined and will always fail.
func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Equal(a.t, expected, actual, msgAndArgs...)
}
// EqualError asserts that a function returned an error (i.e. not `nil`)
// and that it is equal to the provided error.
//
// actualObj, err := SomeFunction()
// a.EqualError(err, expectedErrorString)
func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
EqualError(a.t, theError, errString, msgAndArgs...)
}
// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
// and that it is equal to the provided error.
//
// actualObj, err := SomeFunction()
// a.EqualErrorf(err, expectedErrorString, "error message %s", "formatted")
func (a *Assertions) EqualErrorf(theError error, errString string, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
EqualErrorf(a.t, theError, errString, msg, args...)
}
// EqualValues asserts that two objects are equal or convertable to the same types
// and equal.
//
// a.EqualValues(uint32(123), int32(123))
func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
EqualValues(a.t, expected, actual, msgAndArgs...)
}
// EqualValuesf asserts that two objects are equal or convertable to the same types
// and equal.
//
// a.EqualValuesf(uint32(123, "error message %s", "formatted"), int32(123))
func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
EqualValuesf(a.t, expected, actual, msg, args...)
}
// Equalf asserts that two objects are equal.
//
// a.Equalf(123, 123, "error message %s", "formatted")
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses). Function equality
// cannot be determined and will always fail.
func (a *Assertions) Equalf(expected interface{}, actual interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Equalf(a.t, expected, actual, msg, args...)
}
// Error asserts that a function returned an error (i.e. not `nil`).
//
// actualObj, err := SomeFunction()
// if a.Error(err) {
// assert.Equal(t, expectedError, err)
// }
func (a *Assertions) Error(err error, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Error(a.t, err, msgAndArgs...)
}
// Errorf asserts that a function returned an error (i.e. not `nil`).
//
// actualObj, err := SomeFunction()
// if a.Errorf(err, "error message %s", "formatted") {
// assert.Equal(t, expectedErrorf, err)
// }
func (a *Assertions) Errorf(err error, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Errorf(a.t, err, msg, args...)
}
// Exactly asserts that two objects are equal in value and type.
//
// a.Exactly(int32(123), int64(123))
func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Exactly(a.t, expected, actual, msgAndArgs...)
}
// Exactlyf asserts that two objects are equal in value and type.
//
// a.Exactlyf(int32(123, "error message %s", "formatted"), int64(123))
func (a *Assertions) Exactlyf(expected interface{}, actual interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Exactlyf(a.t, expected, actual, msg, args...)
}
// Fail reports a failure through
func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Fail(a.t, failureMessage, msgAndArgs...)
}
// FailNow fails test
func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
FailNow(a.t, failureMessage, msgAndArgs...)
}
// FailNowf fails test
func (a *Assertions) FailNowf(failureMessage string, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
FailNowf(a.t, failureMessage, msg, args...)
}
// Failf reports a failure through
func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Failf(a.t, failureMessage, msg, args...)
}
// False asserts that the specified value is false.
//
// a.False(myBool)
func (a *Assertions) False(value bool, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
False(a.t, value, msgAndArgs...)
}
// Falsef asserts that the specified value is false.
//
// a.Falsef(myBool, "error message %s", "formatted")
func (a *Assertions) Falsef(value bool, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Falsef(a.t, value, msg, args...)
}
// FileExists checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
func (a *Assertions) FileExists(path string, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
FileExists(a.t, path, msgAndArgs...)
}
// FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
func (a *Assertions) FileExistsf(path string, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
FileExistsf(a.t, path, msg, args...)
}
// HTTPBodyContains asserts that a specified handler returns a
// body that contains a string.
//
// a.HTTPBodyContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPBodyContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPBodyContains(a.t, handler, method, url, values, str, msgAndArgs...)
}
// HTTPBodyContainsf asserts that a specified handler returns a
// body that contains a string.
//
// a.HTTPBodyContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPBodyContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPBodyContainsf(a.t, handler, method, url, values, str, msg, args...)
}
// HTTPBodyNotContains asserts that a specified handler returns a
// body that does not contain a string.
//
// a.HTTPBodyNotContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPBodyNotContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPBodyNotContains(a.t, handler, method, url, values, str, msgAndArgs...)
}
// HTTPBodyNotContainsf asserts that a specified handler returns a
// body that does not contain a string.
//
// a.HTTPBodyNotContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPBodyNotContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPBodyNotContainsf(a.t, handler, method, url, values, str, msg, args...)
}
// HTTPError asserts that a specified handler returns an error status code.
//
// a.HTTPError(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPError(a.t, handler, method, url, values, msgAndArgs...)
}
// HTTPErrorf asserts that a specified handler returns an error status code.
//
// a.HTTPErrorf(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
func (a *Assertions) HTTPErrorf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPErrorf(a.t, handler, method, url, values, msg, args...)
}
// HTTPRedirect asserts that a specified handler returns a redirect status code.
//
// a.HTTPRedirect(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPRedirect(a.t, handler, method, url, values, msgAndArgs...)
}
// HTTPRedirectf asserts that a specified handler returns a redirect status code.
//
// a.HTTPRedirectf(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
func (a *Assertions) HTTPRedirectf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPRedirectf(a.t, handler, method, url, values, msg, args...)
}
// HTTPSuccess asserts that a specified handler returns a success status code.
//
// a.HTTPSuccess(myHandler, "POST", "http://www.google.com", nil)
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPSuccess(a.t, handler, method, url, values, msgAndArgs...)
}
// HTTPSuccessf asserts that a specified handler returns a success status code.
//
// a.HTTPSuccessf(myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
//
// Returns whether the assertion was successful (true) or not (false).
func (a *Assertions) HTTPSuccessf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
HTTPSuccessf(a.t, handler, method, url, values, msg, args...)
}
// Implements asserts that an object is implemented by the specified interface.
//
// a.Implements((*MyInterface)(nil), new(MyObject))
func (a *Assertions) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Implements(a.t, interfaceObject, object, msgAndArgs...)
}
// Implementsf asserts that an object is implemented by the specified interface.
//
// a.Implementsf((*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Implementsf(a.t, interfaceObject, object, msg, args...)
}
// InDelta asserts that the two numerals are within delta of each other.
//
// a.InDelta(math.Pi, (22 / 7.0), 0.01)
func (a *Assertions) InDelta(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InDelta(a.t, expected, actual, delta, msgAndArgs...)
}
// InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
func (a *Assertions) InDeltaMapValues(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InDeltaMapValues(a.t, expected, actual, delta, msgAndArgs...)
}
// InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
func (a *Assertions) InDeltaMapValuesf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InDeltaMapValuesf(a.t, expected, actual, delta, msg, args...)
}
// InDeltaSlice is the same as InDelta, except it compares two slices.
func (a *Assertions) InDeltaSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InDeltaSlice(a.t, expected, actual, delta, msgAndArgs...)
}
// InDeltaSlicef is the same as InDelta, except it compares two slices.
func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InDeltaSlicef(a.t, expected, actual, delta, msg, args...)
}
// InDeltaf asserts that the two numerals are within delta of each other.
//
// a.InDeltaf(math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
func (a *Assertions) InDeltaf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InDeltaf(a.t, expected, actual, delta, msg, args...)
}
// InEpsilon asserts that expected and actual have a relative error less than epsilon
func (a *Assertions) InEpsilon(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InEpsilon(a.t, expected, actual, epsilon, msgAndArgs...)
}
// InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InEpsilonSlice(a.t, expected, actual, epsilon, msgAndArgs...)
}
// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
func (a *Assertions) InEpsilonSlicef(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InEpsilonSlicef(a.t, expected, actual, epsilon, msg, args...)
}
// InEpsilonf asserts that expected and actual have a relative error less than epsilon
func (a *Assertions) InEpsilonf(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
InEpsilonf(a.t, expected, actual, epsilon, msg, args...)
}
// IsType asserts that the specified objects are of the same type.
func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
IsType(a.t, expectedType, object, msgAndArgs...)
}
// IsTypef asserts that the specified objects are of the same type.
func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
IsTypef(a.t, expectedType, object, msg, args...)
}
// JSONEq asserts that two JSON strings are equivalent.
//
// a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
JSONEq(a.t, expected, actual, msgAndArgs...)
}
// JSONEqf asserts that two JSON strings are equivalent.
//
// a.JSONEqf(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
func (a *Assertions) JSONEqf(expected string, actual string, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
JSONEqf(a.t, expected, actual, msg, args...)
}
// Len asserts that the specified object has specific length.
// Len also fails if the object has a type that len() not accept.
//
// a.Len(mySlice, 3)
func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Len(a.t, object, length, msgAndArgs...)
}
// Lenf asserts that the specified object has specific length.
// Lenf also fails if the object has a type that len() not accept.
//
// a.Lenf(mySlice, 3, "error message %s", "formatted")
func (a *Assertions) Lenf(object interface{}, length int, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Lenf(a.t, object, length, msg, args...)
}
// Nil asserts that the specified object is nil.
//
// a.Nil(err)
func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Nil(a.t, object, msgAndArgs...)
}
// Nilf asserts that the specified object is nil.
//
// a.Nilf(err, "error message %s", "formatted")
func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Nilf(a.t, object, msg, args...)
}
// NoError asserts that a function returned no error (i.e. `nil`).
//
// actualObj, err := SomeFunction()
// if a.NoError(err) {
// assert.Equal(t, expectedObj, actualObj)
// }
func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NoError(a.t, err, msgAndArgs...)
}
// NoErrorf asserts that a function returned no error (i.e. `nil`).
//
// actualObj, err := SomeFunction()
// if a.NoErrorf(err, "error message %s", "formatted") {
// assert.Equal(t, expectedObj, actualObj)
// }
func (a *Assertions) NoErrorf(err error, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NoErrorf(a.t, err, msg, args...)
}
// NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
// specified substring or element.
//
// a.NotContains("Hello World", "Earth")
// a.NotContains(["Hello", "World"], "Earth")
// a.NotContains({"Hello": "World"}, "Earth")
func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotContains(a.t, s, contains, msgAndArgs...)
}
// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
// specified substring or element.
//
// a.NotContainsf("Hello World", "Earth", "error message %s", "formatted")
// a.NotContainsf(["Hello", "World"], "Earth", "error message %s", "formatted")
// a.NotContainsf({"Hello": "World"}, "Earth", "error message %s", "formatted")
func (a *Assertions) NotContainsf(s interface{}, contains interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotContainsf(a.t, s, contains, msg, args...)
}
// NotEmpty asserts that the specified object is NOT empty. I.e. not nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// if a.NotEmpty(obj) {
// assert.Equal(t, "two", obj[1])
// }
func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotEmpty(a.t, object, msgAndArgs...)
}
// NotEmptyf asserts that the specified object is NOT empty. I.e. not nil, "", false, 0 or either
// a slice or a channel with len == 0.
//
// if a.NotEmptyf(obj, "error message %s", "formatted") {
// assert.Equal(t, "two", obj[1])
// }
func (a *Assertions) NotEmptyf(object interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotEmptyf(a.t, object, msg, args...)
}
// NotEqual asserts that the specified values are NOT equal.
//
// a.NotEqual(obj1, obj2)
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses).
func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotEqual(a.t, expected, actual, msgAndArgs...)
}
// NotEqualf asserts that the specified values are NOT equal.
//
// a.NotEqualf(obj1, obj2, "error message %s", "formatted")
//
// Pointer variable equality is determined based on the equality of the
// referenced values (as opposed to the memory addresses).
func (a *Assertions) NotEqualf(expected interface{}, actual interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotEqualf(a.t, expected, actual, msg, args...)
}
// NotNil asserts that the specified object is not nil.
//
// a.NotNil(err)
func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotNil(a.t, object, msgAndArgs...)
}
// NotNilf asserts that the specified object is not nil.
//
// a.NotNilf(err, "error message %s", "formatted")
func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotNilf(a.t, object, msg, args...)
}
// NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
//
// a.NotPanics(func(){ RemainCalm() })
func (a *Assertions) NotPanics(f assert.PanicTestFunc, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotPanics(a.t, f, msgAndArgs...)
}
// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
//
// a.NotPanicsf(func(){ RemainCalm() }, "error message %s", "formatted")
func (a *Assertions) NotPanicsf(f assert.PanicTestFunc, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotPanicsf(a.t, f, msg, args...)
}
// NotRegexp asserts that a specified regexp does not match a string.
//
// a.NotRegexp(regexp.MustCompile("starts"), "it's starting")
// a.NotRegexp("^start", "it's not starting")
func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotRegexp(a.t, rx, str, msgAndArgs...)
}
// NotRegexpf asserts that a specified regexp does not match a string.
//
// a.NotRegexpf(regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
// a.NotRegexpf("^start", "it's not starting", "error message %s", "formatted")
func (a *Assertions) NotRegexpf(rx interface{}, str interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotRegexpf(a.t, rx, str, msg, args...)
}
// NotSubset asserts that the specified list(array, slice...) contains not all
// elements given in the specified subset(array, slice...).
//
// a.NotSubset([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
func (a *Assertions) NotSubset(list interface{}, subset interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotSubset(a.t, list, subset, msgAndArgs...)
}
// NotSubsetf asserts that the specified list(array, slice...) contains not all
// elements given in the specified subset(array, slice...).
//
// a.NotSubsetf([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
func (a *Assertions) NotSubsetf(list interface{}, subset interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotSubsetf(a.t, list, subset, msg, args...)
}
// NotZero asserts that i is not the zero value for its type.
func (a *Assertions) NotZero(i interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotZero(a.t, i, msgAndArgs...)
}
// NotZerof asserts that i is not the zero value for its type.
func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
NotZerof(a.t, i, msg, args...)
}
// Panics asserts that the code inside the specified PanicTestFunc panics.
//
// a.Panics(func(){ GoCrazy() })
func (a *Assertions) Panics(f assert.PanicTestFunc, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Panics(a.t, f, msgAndArgs...)
}
// PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that
// the recovered panic value equals the expected panic value.
//
// a.PanicsWithValue("crazy error", func(){ GoCrazy() })
func (a *Assertions) PanicsWithValue(expected interface{}, f assert.PanicTestFunc, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
PanicsWithValue(a.t, expected, f, msgAndArgs...)
}
// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
// the recovered panic value equals the expected panic value.
//
// a.PanicsWithValuef("crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
func (a *Assertions) PanicsWithValuef(expected interface{}, f assert.PanicTestFunc, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
PanicsWithValuef(a.t, expected, f, msg, args...)
}
// Panicsf asserts that the code inside the specified PanicTestFunc panics.
//
// a.Panicsf(func(){ GoCrazy() }, "error message %s", "formatted")
func (a *Assertions) Panicsf(f assert.PanicTestFunc, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Panicsf(a.t, f, msg, args...)
}
// Regexp asserts that a specified regexp matches a string.
//
// a.Regexp(regexp.MustCompile("start"), "it's starting")
// a.Regexp("start...$", "it's not starting")
func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Regexp(a.t, rx, str, msgAndArgs...)
}
// Regexpf asserts that a specified regexp matches a string.
//
// a.Regexpf(regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
// a.Regexpf("start...$", "it's not starting", "error message %s", "formatted")
func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Regexpf(a.t, rx, str, msg, args...)
}
// Subset asserts that the specified list(array, slice...) contains all
// elements given in the specified subset(array, slice...).
//
// a.Subset([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Subset(a.t, list, subset, msgAndArgs...)
}
// Subsetf asserts that the specified list(array, slice...) contains all
// elements given in the specified subset(array, slice...).
//
// a.Subsetf([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
func (a *Assertions) Subsetf(list interface{}, subset interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Subsetf(a.t, list, subset, msg, args...)
}
// True asserts that the specified value is true.
//
// a.True(myBool)
func (a *Assertions) True(value bool, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
True(a.t, value, msgAndArgs...)
}
// Truef asserts that the specified value is true.
//
// a.Truef(myBool, "error message %s", "formatted")
func (a *Assertions) Truef(value bool, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Truef(a.t, value, msg, args...)
}
// WithinDuration asserts that the two times are within duration delta of each other.
//
// a.WithinDuration(time.Now(), time.Now(), 10*time.Second)
func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
WithinDuration(a.t, expected, actual, delta, msgAndArgs...)
}
// WithinDurationf asserts that the two times are within duration delta of each other.
//
// a.WithinDurationf(time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
func (a *Assertions) WithinDurationf(expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
WithinDurationf(a.t, expected, actual, delta, msg, args...)
}
// Zero asserts that i is the zero value for its type.
func (a *Assertions) Zero(i interface{}, msgAndArgs ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Zero(a.t, i, msgAndArgs...)
}
// Zerof asserts that i is the zero value for its type.
func (a *Assertions) Zerof(i interface{}, msg string, args ...interface{}) {
if h, ok := a.t.(tHelper); ok {
h.Helper()
}
Zerof(a.t, i, msg, args...)
}

5
vendor/github.com/stretchr/testify/require/require_forward.go.tmpl generated vendored Normal file
View File

@ -0,0 +1,5 @@
{{.CommentWithoutT "a"}}
func (a *Assertions) {{.DocInfo.Name}}({{.Params}}) {
if h, ok := a.t.(tHelper); ok { h.Helper() }
{{.DocInfo.Name}}(a.t, {{.ForwardedParams}})
}

29
vendor/github.com/stretchr/testify/require/requirements.go generated vendored Normal file
View File

@ -0,0 +1,29 @@
package require
// TestingT is an interface wrapper around *testing.T
type TestingT interface {
Errorf(format string, args ...interface{})
FailNow()
}
type tHelper interface {
Helper()
}
// ComparisonAssertionFunc is a common function prototype when comparing two values. Can be useful
// for table driven tests.
type ComparisonAssertionFunc func(TestingT, interface{}, interface{}, ...interface{})
// ValueAssertionFunc is a common function prototype when validating a single value. Can be useful
// for table driven tests.
type ValueAssertionFunc func(TestingT, interface{}, ...interface{})
// BoolAssertionFunc is a common function prototype when validating a bool value. Can be useful
// for table driven tests.
type BoolAssertionFunc func(TestingT, bool, ...interface{})
// ErrorAssertionFunc is a common function prototype when validating an error value. Can be useful
// for table driven tests.
type ErrorAssertionFunc func(TestingT, error, ...interface{})
//go:generate go run ../_codegen/main.go -output-package=require -template=require.go.tmpl -include-format-funcs