import "github.com/stretchr/testify/assert"
Package assert provides a set of comprehensive testing tools for use with the normal Go testing system.
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 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.
assertion_format.go assertion_forward.go assertions.go doc.go errors.go forward_assertions.go http_assertions.go
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.
CallerInfo returns an array of strings containing the file and line number of each stack frame leading from the current test to the assert call that failed.
func Condition(t TestingT, comp Comparison, msgAndArgs ...interface{}) bool
Condition uses a Comparison to assert a complex condition.
func Conditionf(t TestingT, comp Comparison, msg string, args ...interface{}) bool
Conditionf uses a Comparison to assert a complex condition.
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(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool
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")
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.
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.
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(t TestingT, listA interface{}, listB interface{}, msg string, args ...interface{}) bool
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"))
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)
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")
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.
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(t TestingT, theError error, errString string, msg string, args ...interface{}) bool
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")
EqualValues asserts that two objects are equal or convertable to the same types and equal.
assert.EqualValues(t, uint32(123), int32(123))
func EqualValuesf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool
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(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool
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.
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)
}
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)
}
Exactly asserts that two objects are equal in value and type.
assert.Exactly(t, int32(123), int64(123))
func Exactlyf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool
Exactlyf asserts that two objects are equal in value and type.
assert.Exactlyf(t, int32(123, "error message %s", "formatted"), int64(123))
Fail reports a failure through
FailNow fails test
FailNowf fails test
Failf reports a failure through
False asserts that the specified value is false.
assert.False(t, myBool)
Falsef asserts that the specified value is false.
assert.Falsef(t, myBool, "error message %s", "formatted")
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.
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.
HTTPBody is a helper that returns HTTP body of the response. It returns empty string if building a new request fails.
func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool
HTTPBodyContains asserts that a specified handler returns a body that contains a string.
assert.HTTPBodyContains(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky")
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
HTTPBodyContainsf asserts that a specified handler returns a body that contains a string.
assert.HTTPBodyContainsf(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
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
HTTPBodyNotContains asserts that a specified handler returns a body that does not contain a string.
assert.HTTPBodyNotContains(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky")
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
HTTPBodyNotContainsf asserts that a specified handler returns a body that does not contain a string.
assert.HTTPBodyNotContainsf(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
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
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(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool
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(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool
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(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool
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(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool
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(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool
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(t TestingT, interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool
Implements asserts that an object is implemented by the specified interface.
assert.Implements(t, (*MyInterface)(nil), new(MyObject))
func Implementsf(t TestingT, interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool
Implementsf asserts that an object is implemented by the specified interface.
assert.Implementsf(t, (*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
func InDelta(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool
InDelta asserts that the two numerals are within delta of each other.
assert.InDelta(t, math.Pi, (22 / 7.0), 0.01)
func InDeltaMapValues(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool
InDeltaMapValues 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
InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
func InDeltaSlice(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool
InDeltaSlice 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
InDeltaSlicef is the same as InDelta, except it compares two slices.
func InDeltaf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool
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(t TestingT, expected, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool
InEpsilon asserts that expected and actual have a relative error less than epsilon
func InEpsilonSlice(t TestingT, expected, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool
InEpsilonSlice 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
InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
func InEpsilonf(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool
InEpsilonf asserts that expected and actual have a relative error less than epsilon
func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool
IsType asserts that the specified objects are of the same type.
func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg string, args ...interface{}) bool
IsTypef asserts that the specified objects are of the same type.
JSONEq asserts that two JSON strings are equivalent.
assert.JSONEq(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
JSONEqf asserts that two JSON strings are equivalent.
assert.JSONEqf(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
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)
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")
Nil asserts that the specified object is nil.
assert.Nil(t, err)
Nilf asserts that the specified object is nil.
assert.Nilf(t, err, "error message %s", "formatted")
NoError asserts that a function returned no error (i.e. `nil`).
actualObj, err := SomeFunction()
if assert.NoError(t, err) {
assert.Equal(t, expectedObj, actualObj)
}
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)
}
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(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool
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")
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])
}
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])
}
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(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool
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).
NotNil asserts that the specified object is not nil.
assert.NotNil(t, err)
NotNilf asserts that the specified object is not nil.
assert.NotNilf(t, err, "error message %s", "formatted")
func NotPanics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool
NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
assert.NotPanics(t, func(){ RemainCalm() })
func NotPanicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool
NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
assert.NotPanicsf(t, func(){ RemainCalm() }, "error message %s", "formatted")
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")
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")
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(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool
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")
NotZero asserts that i is not the zero value for its type.
NotZerof asserts that i is not the zero value for its type.
ObjectsAreEqual determines if two objects are considered equal.
This function does no assertion of any kind.
ObjectsAreEqualValues gets whether two objects are equal, or if their values are equal.
func Panics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool
Panics asserts that the code inside the specified PanicTestFunc panics.
assert.Panics(t, func(){ GoCrazy() })
func PanicsWithValue(t TestingT, expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool
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(t TestingT, expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool
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(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool
Panicsf asserts that the code inside the specified PanicTestFunc panics.
assert.Panicsf(t, func(){ GoCrazy() }, "error message %s", "formatted")
Regexp asserts that a specified regexp matches a string.
assert.Regexp(t, regexp.MustCompile("start"), "it's starting")
assert.Regexp(t, "start...$", "it's not starting")
Regexpf asserts that a specified regexp matches a string.
assert.Regexpf(t, regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
assert.Regexpf(t, "start...$", "it's not starting", "error message %s", "formatted")
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(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool
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")
True asserts that the specified value is true.
assert.True(t, myBool)
Truef asserts that the specified value is true.
assert.Truef(t, myBool, "error message %s", "formatted")
func WithinDuration(t TestingT, expected, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool
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(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool
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")
Zero asserts that i is the zero value for its type.
Zerof asserts that i is the zero value for its type.
type Assertions struct {
// contains filtered or unexported fields
}Assertions provides assertion methods around the TestingT interface.
func New(t TestingT) *Assertions
New makes a new Assertions object for the specified TestingT.
func (a *Assertions) Condition(comp Comparison, msgAndArgs ...interface{}) bool
Condition uses a Comparison to assert a complex condition.
func (a *Assertions) Conditionf(comp Comparison, msg string, args ...interface{}) bool
Conditionf uses a Comparison to assert a complex condition.
func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool
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) Containsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool
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) DirExists(path string, msgAndArgs ...interface{}) bool
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) DirExistsf(path string, msg string, args ...interface{}) bool
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) ElementsMatch(listA interface{}, listB interface{}, msgAndArgs ...interface{}) bool
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) ElementsMatchf(listA interface{}, listB interface{}, msg string, args ...interface{}) bool
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) Empty(object interface{}, msgAndArgs ...interface{}) bool
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) Emptyf(object interface{}, msg string, args ...interface{}) bool
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) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool
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) EqualError(theError error, errString string, msgAndArgs ...interface{}) bool
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) EqualErrorf(theError error, errString string, msg string, args ...interface{}) bool
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) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool
EqualValues asserts that two objects are equal or convertable to the same types and equal.
a.EqualValues(uint32(123), int32(123))
func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool
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) Equalf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool
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) Error(err error, msgAndArgs ...interface{}) bool
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) Errorf(err error, msg string, args ...interface{}) bool
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) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool
Exactly asserts that two objects are equal in value and type.
a.Exactly(int32(123), int64(123))
func (a *Assertions) Exactlyf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool
Exactlyf asserts that two objects are equal in value and type.
a.Exactlyf(int32(123, "error message %s", "formatted"), int64(123))
func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{}) bool
Fail reports a failure through
func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{}) bool
FailNow fails test
func (a *Assertions) FailNowf(failureMessage string, msg string, args ...interface{}) bool
FailNowf fails test
func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{}) bool
Failf reports a failure through
func (a *Assertions) False(value bool, msgAndArgs ...interface{}) bool
False asserts that the specified value is false.
a.False(myBool)
func (a *Assertions) Falsef(value bool, msg string, args ...interface{}) bool
Falsef asserts that the specified value is false.
a.Falsef(myBool, "error message %s", "formatted")
func (a *Assertions) FileExists(path string, msgAndArgs ...interface{}) bool
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) FileExistsf(path string, msg string, args ...interface{}) bool
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) HTTPBodyContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool
HTTPBodyContains asserts that a specified handler returns a body that contains a string.
a.HTTPBodyContains(myHandler, "www.google.com", nil, "I'm Feeling Lucky")
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
HTTPBodyContainsf asserts that a specified handler returns a body that contains a string.
a.HTTPBodyContainsf(myHandler, "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) HTTPBodyNotContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool
HTTPBodyNotContains asserts that a specified handler returns a body that does not contain a string.
a.HTTPBodyNotContains(myHandler, "www.google.com", nil, "I'm Feeling Lucky")
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
HTTPBodyNotContainsf asserts that a specified handler returns a body that does not contain a string.
a.HTTPBodyNotContainsf(myHandler, "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) HTTPError(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool
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) HTTPErrorf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool
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) HTTPRedirect(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool
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) HTTPRedirectf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool
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) HTTPSuccess(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool
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) HTTPSuccessf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool
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) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool
Implements asserts that an object is implemented by the specified interface.
a.Implements((*MyInterface)(nil), new(MyObject))
func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool
Implementsf asserts that an object is implemented by the specified interface.
a.Implementsf((*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
func (a *Assertions) InDelta(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool
InDelta asserts that the two numerals are within delta of each other.
a.InDelta(math.Pi, (22 / 7.0), 0.01)
func (a *Assertions) InDeltaMapValues(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool
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) InDeltaMapValuesf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool
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) InDeltaSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool
InDeltaSlice 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
InDeltaSlicef is the same as InDelta, except it compares two slices.
func (a *Assertions) InDeltaf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool
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) InEpsilon(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool
InEpsilon asserts that expected and actual have a relative error less than epsilon
func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool
InEpsilonSlice 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
InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
func (a *Assertions) InEpsilonf(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool
InEpsilonf asserts that expected and actual have a relative error less than epsilon
func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool
IsType asserts that the specified objects are of the same type.
func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg string, args ...interface{}) bool
IsTypef asserts that the specified objects are of the same type.
func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interface{}) bool
JSONEq asserts that two JSON strings are equivalent.
a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
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) Len(object interface{}, length int, msgAndArgs ...interface{}) bool
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) Lenf(object interface{}, length int, msg string, args ...interface{}) bool
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) Nil(object interface{}, msgAndArgs ...interface{}) bool
Nil asserts that the specified object is nil.
a.Nil(err)
func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{}) bool
Nilf asserts that the specified object is nil.
a.Nilf(err, "error message %s", "formatted")
func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) bool
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) NoErrorf(err error, msg string, args ...interface{}) bool
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) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool
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) NotContainsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool
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) NotEmpty(object interface{}, msgAndArgs ...interface{}) bool
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) NotEmptyf(object interface{}, msg string, args ...interface{}) bool
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) NotEqual(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool
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) NotEqualf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool
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) NotNil(object interface{}, msgAndArgs ...interface{}) bool
NotNil asserts that the specified object is not nil.
a.NotNil(err)
func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{}) bool
NotNilf asserts that the specified object is not nil.
a.NotNilf(err, "error message %s", "formatted")
func (a *Assertions) NotPanics(f PanicTestFunc, msgAndArgs ...interface{}) bool
NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
a.NotPanics(func(){ RemainCalm() })
func (a *Assertions) NotPanicsf(f PanicTestFunc, msg string, args ...interface{}) bool
NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
a.NotPanicsf(func(){ RemainCalm() }, "error message %s", "formatted")
func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool
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) NotRegexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool
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) NotSubset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool
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) NotSubsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool
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) NotZero(i interface{}, msgAndArgs ...interface{}) bool
NotZero asserts that i is not the zero value for its type.
func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{}) bool
NotZerof asserts that i is not the zero value for its type.
func (a *Assertions) Panics(f PanicTestFunc, msgAndArgs ...interface{}) bool
Panics asserts that the code inside the specified PanicTestFunc panics.
a.Panics(func(){ GoCrazy() })
func (a *Assertions) PanicsWithValue(expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool
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) PanicsWithValuef(expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool
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) Panicsf(f PanicTestFunc, msg string, args ...interface{}) bool
Panicsf asserts that the code inside the specified PanicTestFunc panics.
a.Panicsf(func(){ GoCrazy() }, "error message %s", "formatted")
func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool
Regexp asserts that a specified regexp matches a string.
a.Regexp(regexp.MustCompile("start"), "it's starting")
a.Regexp("start...$", "it's not starting")
func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool
Regexpf asserts that a specified regexp matches a string.
a.Regexpf(regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
a.Regexpf("start...$", "it's not starting", "error message %s", "formatted")
func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool
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) Subsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool
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) True(value bool, msgAndArgs ...interface{}) bool
True asserts that the specified value is true.
a.True(myBool)
func (a *Assertions) Truef(value bool, msg string, args ...interface{}) bool
Truef asserts that the specified value is true.
a.Truef(myBool, "error message %s", "formatted")
func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool
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) WithinDurationf(expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool
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) Zero(i interface{}, msgAndArgs ...interface{}) bool
Zero asserts that i is the zero value for its type.
func (a *Assertions) Zerof(i interface{}, msg string, args ...interface{}) bool
Zerof asserts that i is the zero value for its type.
Comparison a custom function that returns true on success and false on failure
type PanicTestFunc func()
PanicTestFunc defines a func that should be passed to the assert.Panics and assert.NotPanics methods, and represents a simple func that takes no arguments, and returns nothing.
TestingT is an interface wrapper around *testing.T
Package assert imports 19 packages (graph) and is imported by 987 packages. Updated 2017-12-31. Refresh now. Tools for package owners.