require

package
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 Go to latest Published: Jun 9, 2018 License: MIT Imports: 4 Imported by: 0

Documentation

Overview

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.

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

func Condition 

func Condition(t TestingT, comp assert.Comparison, msgAndArgs ...interface{})

Condition uses a Comparison to assert a complex condition.

func Conditionf 

func Conditionf(t TestingT, comp assert.Comparison, msg string, args ...interface{})

Conditionf uses a Comparison to assert a complex condition.

func Contains 

func Contains(t TestingT, s interface{}, contains interface{}, msgAndArgs ...interface{})

Contains asserts that the specified string, list(array, slice...) or map contains the specified substring or element. 

assert.Contains(t, "Hello World", "World")
assert.Contains(t, ["Hello", "World"], "World")
assert.Contains(t, {"Hello": "World"}, "Hello")

func Containsf 

func Containsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{})

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 DirExists 

func DirExists(t TestingT, path string, msgAndArgs ...interface{})

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 DirExistsf 

func DirExistsf(t TestingT, path string, msg string, args ...interface{})

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 ElementsMatch 

func ElementsMatch(t TestingT, listA interface{}, listB interface{}, msgAndArgs ...interface{})

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.

assert.ElementsMatch(t, [1, 3, 2, 3], [1, 3, 3, 2])

func ElementsMatchf 

func ElementsMatchf(t TestingT, listA interface{}, listB interface{}, msg string, args ...interface{})

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 Empty 

func Empty(t TestingT, object interface{}, msgAndArgs ...interface{})

Empty asserts that the specified object is empty. I.e. nil, "", false, 0 or either a slice or a channel with len == 0. 

assert.Empty(t, obj)

func Emptyf 

func Emptyf(t TestingT, object interface{}, msg string, args ...interface{})

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 Equal 

func Equal(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{})

Equal asserts that two objects are equal. 

assert.Equal(t, 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 EqualError 

func EqualError(t TestingT, theError error, errString string, msgAndArgs ...interface{})

EqualError asserts that a function returned an error (i.e. not `nil`) and that it is equal to the provided error. 

actualObj, err := SomeFunction()
assert.EqualError(t, err,  expectedErrorString)

func EqualErrorf 

func EqualErrorf(t TestingT, theError error, errString string, msg string, args ...interface{})

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 EqualValues 

func EqualValues(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{})

EqualValues asserts that two objects are equal or convertable to the same types and equal. 

assert.EqualValues(t, uint32(123), int32(123))

func EqualValuesf 

func EqualValuesf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{})

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 Equalf 

func Equalf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{})

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 Error 

func Error(t TestingT, err error, msgAndArgs ...interface{})

Error asserts that a function returned an error (i.e. not `nil`). 

  actualObj, err := SomeFunction()
  if assert.Error(t, err) {
	   assert.Equal(t, expectedError, err)
  }

func Errorf 

func Errorf(t TestingT, err error, msg string, args ...interface{})

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 Exactly 

func Exactly(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{})

Exactly asserts that two objects are equal in value and type. 

assert.Exactly(t, int32(123), int64(123))

func Exactlyf 

func Exactlyf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{})

Exactlyf asserts that two objects are equal in value and type. 

assert.Exactlyf(t, int32(123, "error message %s", "formatted"), int64(123))

func Fail 

func Fail(t TestingT, failureMessage string, msgAndArgs ...interface{})

Fail reports a failure through

func FailNow 

func FailNow(t TestingT, failureMessage string, msgAndArgs ...interface{})

FailNow fails test

func FailNowf 

func FailNowf(t TestingT, failureMessage string, msg string, args ...interface{})

FailNowf fails test

func Failf 

func Failf(t TestingT, failureMessage string, msg string, args ...interface{})

Failf reports a failure through

func False 

func False(t TestingT, value bool, msgAndArgs ...interface{})

False asserts that the specified value is false. 

assert.False(t, myBool)

func Falsef 

func Falsef(t TestingT, value bool, msg string, args ...interface{})

Falsef asserts that the specified value is false. 

assert.Falsef(t, myBool, "error message %s", "formatted")

func FileExists 

func FileExists(t TestingT, path string, msgAndArgs ...interface{})

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 FileExistsf 

func FileExistsf(t TestingT, path string, msg string, args ...interface{})

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 HTTPBodyContains 

func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{})

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 HTTPBodyContainsf 

func HTTPBodyContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{})

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 HTTPBodyNotContains 

func HTTPBodyNotContains(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{})

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 HTTPBodyNotContainsf 

func HTTPBodyNotContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{})

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 HTTPError 

func HTTPError(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{})

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 HTTPErrorf 

func HTTPErrorf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{})

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 HTTPRedirect 

func HTTPRedirect(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{})

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 HTTPRedirectf 

func HTTPRedirectf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{})

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 HTTPSuccess 

func HTTPSuccess(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{})

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 HTTPSuccessf 

func HTTPSuccessf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{})

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 Implements 

func Implements(t TestingT, interfaceObject interface{}, object interface{}, msgAndArgs ...interface{})

Implements asserts that an object is implemented by the specified interface. 

assert.Implements(t, (*MyInterface)(nil), new(MyObject))

func Implementsf 

func Implementsf(t TestingT, interfaceObject interface{}, object interface{}, msg string, args ...interface{})

Implementsf asserts that an object is implemented by the specified interface. 

assert.Implementsf(t, (*MyInterface, "error message %s", "formatted")(nil), new(MyObject))

func InDelta 

func InDelta(t TestingT, expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{})

InDelta asserts that the two numerals are within delta of each other. 

assert.InDelta(t, math.Pi, (22 / 7.0), 0.01)

func InDeltaMapValues 

func InDeltaMapValues(t TestingT, expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{})

InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.

func InDeltaMapValuesf 

func InDeltaMapValuesf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{})

InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.

func InDeltaSlice 

func InDeltaSlice(t TestingT, expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{})

InDeltaSlice is the same as InDelta, except it compares two slices.

func InDeltaSlicef 

func InDeltaSlicef(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{})

InDeltaSlicef is the same as InDelta, except it compares two slices.

func InDeltaf 

func InDeltaf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{})

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 InEpsilon 

func InEpsilon(t TestingT, expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{})

InEpsilon asserts that expected and actual have a relative error less than epsilon

func InEpsilonSlice 

func InEpsilonSlice(t TestingT, expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{})

InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.

func InEpsilonSlicef 

func InEpsilonSlicef(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{})

InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.

func InEpsilonf 

func InEpsilonf(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{})

InEpsilonf asserts that expected and actual have a relative error less than epsilon

func IsType 

func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs ...interface{})

IsType asserts that the specified objects are of the same type.

func IsTypef 

func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg string, args ...interface{})

IsTypef asserts that the specified objects are of the same type.

func JSONEq 

func JSONEq(t TestingT, expected string, actual string, msgAndArgs ...interface{})

JSONEq asserts that two JSON strings are equivalent. 

assert.JSONEq(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)

func JSONEqf 

func JSONEqf(t TestingT, expected string, actual string, msg string, args ...interface{})

JSONEqf asserts that two JSON strings are equivalent. 

assert.JSONEqf(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")

func Len 

func Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{})

Len asserts that the specified object has specific length. Len also fails if the object has a type that len() not accept. 

assert.Len(t, mySlice, 3)

func Lenf 

func Lenf(t TestingT, object interface{}, length int, msg string, args ...interface{})

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 Nil 

func Nil(t TestingT, object interface{}, msgAndArgs ...interface{})

Nil asserts that the specified object is nil. 

assert.Nil(t, err)

func Nilf 

func Nilf(t TestingT, object interface{}, msg string, args ...interface{})

Nilf asserts that the specified object is nil. 

assert.Nilf(t, err, "error message %s", "formatted")

func NoError 

func NoError(t TestingT, err error, msgAndArgs ...interface{})

NoError asserts that a function returned no error (i.e. `nil`). 

  actualObj, err := SomeFunction()
  if assert.NoError(t, err) {
	   assert.Equal(t, expectedObj, actualObj)
  }

func NoErrorf 

func NoErrorf(t TestingT, err error, msg string, args ...interface{})

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 NotContains 

func NotContains(t TestingT, s interface{}, contains interface{}, msgAndArgs ...interface{})

NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the specified substring or element. 

assert.NotContains(t, "Hello World", "Earth")
assert.NotContains(t, ["Hello", "World"], "Earth")
assert.NotContains(t, {"Hello": "World"}, "Earth")

func NotContainsf 

func NotContainsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{})

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 NotEmpty 

func NotEmpty(t TestingT, object interface{}, msgAndArgs ...interface{})

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 assert.NotEmpty(t, obj) {
  assert.Equal(t, "two", obj[1])
}

func NotEmptyf 

func NotEmptyf(t TestingT, object interface{}, msg string, args ...interface{})

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 NotEqual 

func NotEqual(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{})

NotEqual asserts that the specified values are NOT equal. 

assert.NotEqual(t, obj1, obj2)

Pointer variable equality is determined based on the equality of the referenced values (as opposed to the memory addresses).

func NotEqualf 

func NotEqualf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{})

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 NotNil 

func NotNil(t TestingT, object interface{}, msgAndArgs ...interface{})

NotNil asserts that the specified object is not nil. 

assert.NotNil(t, err)

func NotNilf 

func NotNilf(t TestingT, object interface{}, msg string, args ...interface{})

NotNilf asserts that the specified object is not nil. 

assert.NotNilf(t, err, "error message %s", "formatted")

func NotPanics 

func NotPanics(t TestingT, f assert.PanicTestFunc, msgAndArgs ...interface{})

NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic. 

assert.NotPanics(t, func(){ RemainCalm() })

func NotPanicsf 

func NotPanicsf(t TestingT, f assert.PanicTestFunc, msg string, args ...interface{})

NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic. 

assert.NotPanicsf(t, func(){ RemainCalm() }, "error message %s", "formatted")

func NotRegexp 

func NotRegexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{})

NotRegexp asserts that a specified regexp does not match a string. 

assert.NotRegexp(t, regexp.MustCompile("starts"), "it's starting")
assert.NotRegexp(t, "^start", "it's not starting")

func NotRegexpf 

func NotRegexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{})

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 NotSubset 

func NotSubset(t TestingT, list interface{}, subset interface{}, msgAndArgs ...interface{})

NotSubset asserts that the specified list(array, slice...) contains not all elements given in the specified subset(array, slice...). 

assert.NotSubset(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")

func NotSubsetf 

func NotSubsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{})

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 NotZero 

func NotZero(t TestingT, i interface{}, msgAndArgs ...interface{})

NotZero asserts that i is not the zero value for its type.

func NotZerof 

func NotZerof(t TestingT, i interface{}, msg string, args ...interface{})

NotZerof asserts that i is not the zero value for its type.

func Panics 

func Panics(t TestingT, f assert.PanicTestFunc, msgAndArgs ...interface{})

Panics asserts that the code inside the specified PanicTestFunc panics. 

assert.Panics(t, func(){ GoCrazy() })

func PanicsWithValue 

func PanicsWithValue(t TestingT, expected interface{}, f assert.PanicTestFunc, msgAndArgs ...interface{})

PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that the recovered panic value equals the expected panic value. 

assert.PanicsWithValue(t, "crazy error", func(){ GoCrazy() })

func PanicsWithValuef 

func PanicsWithValuef(t TestingT, expected interface{}, f assert.PanicTestFunc, msg string, args ...interface{})

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 Panicsf 

func Panicsf(t TestingT, f assert.PanicTestFunc, msg string, args ...interface{})

Panicsf asserts that the code inside the specified PanicTestFunc panics. 

assert.Panicsf(t, func(){ GoCrazy() }, "error message %s", "formatted")

func Regexp 

func Regexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{})

Regexp asserts that a specified regexp matches a string. 

assert.Regexp(t, regexp.MustCompile("start"), "it's starting")
assert.Regexp(t, "start...$", "it's not starting")

func Regexpf 

func Regexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{})

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 Subset 

func Subset(t TestingT, list interface{}, subset interface{}, msgAndArgs ...interface{})

Subset asserts that the specified list(array, slice...) contains all elements given in the specified subset(array, slice...). 

assert.Subset(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")

func Subsetf 

func Subsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{})

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 True 

func True(t TestingT, value bool, msgAndArgs ...interface{})

True asserts that the specified value is true. 

assert.True(t, myBool)

func Truef 

func Truef(t TestingT, value bool, msg string, args ...interface{})

Truef asserts that the specified value is true. 

assert.Truef(t, myBool, "error message %s", "formatted")

func WithinDuration 

func WithinDuration(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{})

WithinDuration asserts that the two times are within duration delta of each other. 

assert.WithinDuration(t, time.Now(), time.Now(), 10*time.Second)

func WithinDurationf 

func WithinDurationf(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{})

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 Zero 

func Zero(t TestingT, i interface{}, msgAndArgs ...interface{})

Zero asserts that i is the zero value for its type.

func Zerof 

func Zerof(t TestingT, i interface{}, msg string, args ...interface{})

Zerof asserts that i is the zero value for its type.

Types

type Assertions 

type Assertions struct {
	// contains filtered or unexported fields
}

Assertions provides assertion methods around the TestingT interface.

func New 

func New(t TestingT) *Assertions

New makes a new Assertions object for the specified TestingT.

func (*Assertions) Condition 

func (a *Assertions) Condition(comp assert.Comparison, msgAndArgs ...interface{})

Condition uses a Comparison to assert a complex condition.

func (*Assertions) Conditionf 

func (a *Assertions) Conditionf(comp assert.Comparison, msg string, args ...interface{})

Conditionf uses a Comparison to assert a complex condition.

func (*Assertions) Contains 

func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{})

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 (*Assertions) Containsf 

func (a *Assertions) Containsf(s interface{}, contains interface{}, msg string, args ...interface{})

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 (*Assertions) DirExists 

func (a *Assertions) DirExists(path string, msgAndArgs ...interface{})

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 (*Assertions) DirExistsf 

func (a *Assertions) DirExistsf(path string, msg string, args ...interface{})

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 (*Assertions) ElementsMatch 

func (a *Assertions) ElementsMatch(listA interface{}, listB interface{}, msgAndArgs ...interface{})

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 (*Assertions) ElementsMatchf 

func (a *Assertions) ElementsMatchf(listA interface{}, listB interface{}, msg string, args ...interface{})

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 (*Assertions) Empty 

func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{})

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 (*Assertions) Emptyf 

func (a *Assertions) Emptyf(object interface{}, msg string, args ...interface{})

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 (*Assertions) Equal 

func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{})

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 (*Assertions) EqualError 

func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...interface{})

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 (*Assertions) EqualErrorf 

func (a *Assertions) EqualErrorf(theError error, errString string, msg string, args ...interface{})

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 (*Assertions) EqualValues 

func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{})

EqualValues asserts that two objects are equal or convertable to the same types and equal. 

a.EqualValues(uint32(123), int32(123))

func (*Assertions) EqualValuesf 

func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg string, args ...interface{})

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 (*Assertions) Equalf 

func (a *Assertions) Equalf(expected interface{}, actual interface{}, msg string, args ...interface{})

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 (*Assertions) Error 

func (a *Assertions) Error(err error, msgAndArgs ...interface{})

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 (*Assertions) Errorf 

func (a *Assertions) Errorf(err error, msg string, args ...interface{})

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 (*Assertions) Exactly 

func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{})

Exactly asserts that two objects are equal in value and type. 

a.Exactly(int32(123), int64(123))

func (*Assertions) Exactlyf 

func (a *Assertions) Exactlyf(expected interface{}, actual interface{}, msg string, args ...interface{})

Exactlyf asserts that two objects are equal in value and type. 

a.Exactlyf(int32(123, "error message %s", "formatted"), int64(123))

func (*Assertions) Fail 

func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{})

Fail reports a failure through

func (*Assertions) FailNow 

func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{})

FailNow fails test

func (*Assertions) FailNowf 

func (a *Assertions) FailNowf(failureMessage string, msg string, args ...interface{})

FailNowf fails test

func (*Assertions) Failf 

func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{})

Failf reports a failure through

func (*Assertions) False 

func (a *Assertions) False(value bool, msgAndArgs ...interface{})

False asserts that the specified value is false. 

a.False(myBool)

func (*Assertions) Falsef 

func (a *Assertions) Falsef(value bool, msg string, args ...interface{})

Falsef asserts that the specified value is false. 

a.Falsef(myBool, "error message %s", "formatted")

func (*Assertions) FileExists 

func (a *Assertions) FileExists(path string, msgAndArgs ...interface{})

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 (*Assertions) FileExistsf 

func (a *Assertions) FileExistsf(path string, msg string, args ...interface{})

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 (*Assertions) HTTPBodyContains 

func (a *Assertions) HTTPBodyContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{})

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 (*Assertions) HTTPBodyContainsf 

func (a *Assertions) HTTPBodyContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{})

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 (*Assertions) HTTPBodyNotContains 

func (a *Assertions) HTTPBodyNotContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{})

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 (*Assertions) HTTPBodyNotContainsf 

func (a *Assertions) HTTPBodyNotContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{})

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 (*Assertions) HTTPError 

func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{})

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 (*Assertions) HTTPErrorf 

func (a *Assertions) HTTPErrorf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{})

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 (*Assertions) HTTPRedirect 

func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{})

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 (*Assertions) HTTPRedirectf 

func (a *Assertions) HTTPRedirectf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{})

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 (*Assertions) HTTPSuccess 

func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{})

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 (*Assertions) HTTPSuccessf 

func (a *Assertions) HTTPSuccessf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{})

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 (*Assertions) Implements 

func (a *Assertions) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{})

Implements asserts that an object is implemented by the specified interface. 

a.Implements((*MyInterface)(nil), new(MyObject))

func (*Assertions) Implementsf 

func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}, msg string, args ...interface{})

Implementsf asserts that an object is implemented by the specified interface. 

a.Implementsf((*MyInterface, "error message %s", "formatted")(nil), new(MyObject))

func (*Assertions) InDelta 

func (a *Assertions) InDelta(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{})

InDelta asserts that the two numerals are within delta of each other. 

a.InDelta(math.Pi, (22 / 7.0), 0.01)

func (*Assertions) InDeltaMapValues 

func (a *Assertions) InDeltaMapValues(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{})

InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.

func (*Assertions) InDeltaMapValuesf 

func (a *Assertions) InDeltaMapValuesf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{})

InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.

func (*Assertions) InDeltaSlice 

func (a *Assertions) InDeltaSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{})

InDeltaSlice is the same as InDelta, except it compares two slices.

func (*Assertions) InDeltaSlicef 

func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{})

InDeltaSlicef is the same as InDelta, except it compares two slices.

func (*Assertions) InDeltaf 

func (a *Assertions) InDeltaf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{})

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 (*Assertions) InEpsilon 

func (a *Assertions) InEpsilon(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{})

InEpsilon asserts that expected and actual have a relative error less than epsilon

func (*Assertions) InEpsilonSlice 

func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{})

InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.

func (*Assertions) InEpsilonSlicef 

func (a *Assertions) InEpsilonSlicef(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{})

InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.

func (*Assertions) InEpsilonf 

func (a *Assertions) InEpsilonf(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{})

InEpsilonf asserts that expected and actual have a relative error less than epsilon

func (*Assertions) IsType 

func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{})

IsType asserts that the specified objects are of the same type.

func (*Assertions) IsTypef 

func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg string, args ...interface{})

IsTypef asserts that the specified objects are of the same type.

func (*Assertions) JSONEq 

func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interface{})

JSONEq asserts that two JSON strings are equivalent. 

a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)

func (*Assertions) JSONEqf 

func (a *Assertions) JSONEqf(expected string, actual string, msg string, args ...interface{})

JSONEqf asserts that two JSON strings are equivalent. 

a.JSONEqf(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")

func (*Assertions) Len 

func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface{})

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 (*Assertions) Lenf 

func (a *Assertions) Lenf(object interface{}, length int, msg string, args ...interface{})

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 (*Assertions) Nil 

func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{})

Nil asserts that the specified object is nil. 

a.Nil(err)

func (*Assertions) Nilf 

func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{})

Nilf asserts that the specified object is nil. 

a.Nilf(err, "error message %s", "formatted")

func (*Assertions) NoError 

func (a *Assertions) NoError(err error, msgAndArgs ...interface{})

NoError asserts that a function returned no error (i.e. `nil`). 

  actualObj, err := SomeFunction()
  if a.NoError(err) {
	   assert.Equal(t, expectedObj, actualObj)
  }

func (*Assertions) NoErrorf 

func (a *Assertions) NoErrorf(err error, msg string, args ...interface{})

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 (*Assertions) NotContains 

func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{})

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 (*Assertions) NotContainsf 

func (a *Assertions) NotContainsf(s interface{}, contains interface{}, msg string, args ...interface{})

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 (*Assertions) NotEmpty 

func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{})

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 (*Assertions) NotEmptyf 

func (a *Assertions) NotEmptyf(object interface{}, msg string, args ...interface{})

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 (*Assertions) NotEqual 

func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndArgs ...interface{})

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 (*Assertions) NotEqualf 

func (a *Assertions) NotEqualf(expected interface{}, actual interface{}, msg string, args ...interface{})

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 (*Assertions) NotNil 

func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{})

NotNil asserts that the specified object is not nil. 

a.NotNil(err)

func (*Assertions) NotNilf 

func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{})

NotNilf asserts that the specified object is not nil. 

a.NotNilf(err, "error message %s", "formatted")

func (*Assertions) NotPanics 

func (a *Assertions) NotPanics(f assert.PanicTestFunc, msgAndArgs ...interface{})

NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic. 

a.NotPanics(func(){ RemainCalm() })

func (*Assertions) NotPanicsf 

func (a *Assertions) NotPanicsf(f assert.PanicTestFunc, msg string, args ...interface{})

NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic. 

a.NotPanicsf(func(){ RemainCalm() }, "error message %s", "formatted")

func (*Assertions) NotRegexp 

func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...interface{})

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 (*Assertions) NotRegexpf 

func (a *Assertions) NotRegexpf(rx interface{}, str interface{}, msg string, args ...interface{})

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 (*Assertions) NotSubset 

func (a *Assertions) NotSubset(list interface{}, subset interface{}, msgAndArgs ...interface{})

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 (*Assertions) NotSubsetf 

func (a *Assertions) NotSubsetf(list interface{}, subset interface{}, msg string, args ...interface{})

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 (*Assertions) NotZero 

func (a *Assertions) NotZero(i interface{}, msgAndArgs ...interface{})

NotZero asserts that i is not the zero value for its type.

func (*Assertions) NotZerof 

func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{})

NotZerof asserts that i is not the zero value for its type.

func (*Assertions) Panics 

func (a *Assertions) Panics(f assert.PanicTestFunc, msgAndArgs ...interface{})

Panics asserts that the code inside the specified PanicTestFunc panics. 

a.Panics(func(){ GoCrazy() })

func (*Assertions) PanicsWithValue 

func (a *Assertions) PanicsWithValue(expected interface{}, f assert.PanicTestFunc, msgAndArgs ...interface{})

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 (*Assertions) PanicsWithValuef 

func (a *Assertions) PanicsWithValuef(expected interface{}, f assert.PanicTestFunc, msg string, args ...interface{})

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 (*Assertions) Panicsf 

func (a *Assertions) Panicsf(f assert.PanicTestFunc, msg string, args ...interface{})

Panicsf asserts that the code inside the specified PanicTestFunc panics. 

a.Panicsf(func(){ GoCrazy() }, "error message %s", "formatted")

func (*Assertions) Regexp 

func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...interface{})

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 (*Assertions) Regexpf 

func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args ...interface{})

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 (*Assertions) Subset 

func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...interface{})

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 (*Assertions) Subsetf 

func (a *Assertions) Subsetf(list interface{}, subset interface{}, msg string, args ...interface{})

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 (*Assertions) True 

func (a *Assertions) True(value bool, msgAndArgs ...interface{})

True asserts that the specified value is true. 

a.True(myBool)

func (*Assertions) Truef 

func (a *Assertions) Truef(value bool, msg string, args ...interface{})

Truef asserts that the specified value is true. 

a.Truef(myBool, "error message %s", "formatted")

func (*Assertions) WithinDuration 

func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{})

WithinDuration asserts that the two times are within duration delta of each other. 

a.WithinDuration(time.Now(), time.Now(), 10*time.Second)

func (*Assertions) WithinDurationf 

func (a *Assertions) WithinDurationf(expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{})

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 (*Assertions) Zero 

func (a *Assertions) Zero(i interface{}, msgAndArgs ...interface{})

Zero asserts that i is the zero value for its type.

func (*Assertions) Zerof 

func (a *Assertions) Zerof(i interface{}, msg string, args ...interface{})

Zerof asserts that i is the zero value for its type.

type BoolAssertionFunc 

type BoolAssertionFunc func(TestingT, bool, ...interface{})

BoolAssertionFunc is a common function prototype when validating a bool value. Can be useful for table driven tests.

Example 
t := &testing.T{} // provided by test

isOkay := func(x int) bool {
	return x >= 42
}

tests := []struct {
	name      string
	arg       int
	assertion BoolAssertionFunc
}{
	{"-1 is bad", -1, False},
	{"42 is good", 42, True},
	{"41 is bad", 41, False},
	{"45 is cool", 45, True},
}

for _, tt := range tests {
	t.Run(tt.name, func(t *testing.T) {
		tt.assertion(t, isOkay(tt.arg))
	})
}

Output:

type ComparisonAssertionFunc 

type ComparisonAssertionFunc func(TestingT, interface{}, interface{}, ...interface{})

ComparisonAssertionFunc is a common function prototype when comparing two values. Can be useful for table driven tests.

Example 
t := &testing.T{} // provided by test

adder := func(x, y int) int {
	return x + y
}

type args struct {
	x int
	y int
}

tests := []struct {
	name      string
	args      args
	expect    int
	assertion ComparisonAssertionFunc
}{
	{"2+2=4", args{2, 2}, 4, Equal},
	{"2+2!=5", args{2, 2}, 5, NotEqual},
	{"2+3==5", args{2, 3}, 5, Exactly},
}

for _, tt := range tests {
	t.Run(tt.name, func(t *testing.T) {
		tt.assertion(t, tt.expect, adder(tt.args.x, tt.args.y))
	})
}

Output:

type ErrorAssertionFunc 

type ErrorAssertionFunc func(TestingT, error, ...interface{})

ValuesAssertionFunc is a common function prototype when validating an error value. Can be useful for table driven tests.

Example 
t := &testing.T{} // provided by test

dumbParseNum := func(input string, v interface{}) error {
	return json.Unmarshal([]byte(input), v)
}

tests := []struct {
	name      string
	arg       string
	assertion ErrorAssertionFunc
}{
	{"1.2 is number", "1.2", NoError},
	{"1.2.3 not number", "1.2.3", Error},
	{"true is not number", "true", Error},
	{"3 is number", "3", NoError},
}

for _, tt := range tests {
	t.Run(tt.name, func(t *testing.T) {
		var x float64
		tt.assertion(t, dumbParseNum(tt.arg, &x))
	})
}

Output:

type TestingT 

type TestingT interface {
	Errorf(format string, args ...interface{})
	FailNow()
}

TestingT is an interface wrapper around *testing.T

type ValueAssertionFunc 

type ValueAssertionFunc func(TestingT, interface{}, ...interface{})

ValueAssertionFunc is a common function prototype when validating a single value. Can be useful for table driven tests.

Example 
t := &testing.T{} // provided by test

dumbParse := func(input string) interface{} {
	var x interface{}
	json.Unmarshal([]byte(input), &x)
	return x
}

tests := []struct {
	name      string
	arg       string
	assertion ValueAssertionFunc
}{
	{"true is not nil", "true", NotNil},
	{"empty string is nil", "", Nil},
	{"zero is not nil", "0", NotNil},
	{"zero is zero", "0", Zero},
	{"false is zero", "false", Zero},
}

for _, tt := range tests {
	t.Run(tt.name, func(t *testing.T) {
		tt.assertion(t, dumbParse(tt.arg))
	})
}

Output:

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