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(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 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(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 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(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(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(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{})
EqualValues asserts that two objects are equal or convertible 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{})
EqualValuesf asserts that two objects are equal or convertible to the same types and equal.
assert.EqualValuesf(t, uint32(123), int32(123), "error message %s", "formatted")
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(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 ErrorContains(t TestingT, theError error, contains string, msgAndArgs ...interface{})
ErrorContains asserts that a function returned an error (i.e. not `nil`) and that the error contains the specified substring.
actualObj, err := SomeFunction() assert.ErrorContains(t, err, expectedErrorSubString)
func ErrorContainsf(t TestingT, theError error, contains string, msg string, args ...interface{})
ErrorContainsf asserts that a function returned an error (i.e. not `nil`) and that the error contains the specified substring.
actualObj, err := SomeFunction() assert.ErrorContainsf(t, err, expectedErrorSubString, "error message %s", "formatted")
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 Eventually(t TestingT, condition func() bool, waitFor time.Duration, tick time.Duration, msgAndArgs ...interface{})
Eventually asserts that given condition will be met in waitFor time, periodically checking target function each tick.
assert.Eventually(t, func() bool { return true; }, time.Second, 10*time.Millisecond)
func Eventuallyf(t TestingT, condition func() bool, waitFor time.Duration, tick time.Duration, msg string, args ...interface{})
Eventuallyf asserts that given condition will be met in waitFor time, periodically checking target function each tick.
assert.Eventuallyf(t, func() bool { return true; }, time.Second, 10*time.Millisecond, "error message %s", "formatted")
func Fail(t TestingT, failureMessage string, msgAndArgs ...interface{})
Fail reports a failure through
func FailNow(t TestingT, failureMessage string, msgAndArgs ...interface{})
FailNow fails test
func FailNowf(t TestingT, failureMessage string, msg string, args ...interface{})
FailNowf fails test
func Failf(t TestingT, failureMessage string, msg string, args ...interface{})
Failf reports a failure through
func False(t TestingT, value bool, msgAndArgs ...interface{})
False asserts that the specified value is false.
assert.False(t, myBool)
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 Greater(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{})
Greater asserts that the first element is greater than the second
assert.Greater(t, 2, 1) assert.Greater(t, float64(2), float64(1)) assert.Greater(t, "b", "a")
func GreaterOrEqual(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{})
GreaterOrEqual asserts that the first element is greater than or equal to the second
assert.GreaterOrEqual(t, 2, 1) assert.GreaterOrEqual(t, 2, 2) assert.GreaterOrEqual(t, "b", "a") assert.GreaterOrEqual(t, "b", "b")
func GreaterOrEqualf(t TestingT, e1 interface{}, e2 interface{}, msg string, args ...interface{})
GreaterOrEqualf asserts that the first element is greater than or equal to the second
assert.GreaterOrEqualf(t, 2, 1, "error message %s", "formatted") assert.GreaterOrEqualf(t, 2, 2, "error message %s", "formatted") assert.GreaterOrEqualf(t, "b", "a", "error message %s", "formatted") assert.GreaterOrEqualf(t, "b", "b", "error message %s", "formatted")
func Greaterf(t TestingT, e1 interface{}, e2 interface{}, msg string, args ...interface{})
Greaterf asserts that the first element is greater than the second
assert.Greaterf(t, 2, 1, "error message %s", "formatted") assert.Greaterf(t, float64(2), float64(1), "error message %s", "formatted") assert.Greaterf(t, "b", "a", "error message %s", "formatted")
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 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, 0.01, "error message %s", "formatted")
func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs ...interface{})
IsType asserts that the specified objects are of the same type.
func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg string, args ...interface{})
IsTypef asserts that the specified objects are of the same type.
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(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 Less(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{})
Less asserts that the first element is less than the second
assert.Less(t, 1, 2) assert.Less(t, float64(1), float64(2)) assert.Less(t, "a", "b")
func LessOrEqual(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{})
LessOrEqual asserts that the first element is less than or equal to the second
assert.LessOrEqual(t, 1, 2) assert.LessOrEqual(t, 2, 2) assert.LessOrEqual(t, "a", "b") assert.LessOrEqual(t, "b", "b")
func LessOrEqualf(t TestingT, e1 interface{}, e2 interface{}, msg string, args ...interface{})
LessOrEqualf asserts that the first element is less than or equal to the second
assert.LessOrEqualf(t, 1, 2, "error message %s", "formatted") assert.LessOrEqualf(t, 2, 2, "error message %s", "formatted") assert.LessOrEqualf(t, "a", "b", "error message %s", "formatted") assert.LessOrEqualf(t, "b", "b", "error message %s", "formatted")
func Lessf(t TestingT, e1 interface{}, e2 interface{}, msg string, args ...interface{})
Lessf asserts that the first element is less than the second
assert.Lessf(t, 1, 2, "error message %s", "formatted") assert.Lessf(t, float64(1), float64(2), "error message %s", "formatted") assert.Lessf(t, "a", "b", "error message %s", "formatted")
func Negative(t TestingT, e interface{}, msgAndArgs ...interface{})
Negative asserts that the specified element is negative
assert.Negative(t, -1) assert.Negative(t, -1.23)
func Negativef(t TestingT, e interface{}, msg string, args ...interface{})
Negativef asserts that the specified element is negative
assert.Negativef(t, -1, "error message %s", "formatted") assert.Negativef(t, -1.23, "error message %s", "formatted")
func Nil(t TestingT, object interface{}, msgAndArgs ...interface{})
Nil asserts that the specified object is nil.
assert.Nil(t, err)
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(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(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(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(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 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 NotEqualValues(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{})
NotEqualValues asserts that two objects are not equal even when converted to the same type
assert.NotEqualValues(t, obj1, obj2)
func NotEqualValuesf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{})
NotEqualValuesf asserts that two objects are not equal even when converted to the same type
assert.NotEqualValuesf(t, obj1, obj2, "error message %s", "formatted")
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(t TestingT, object interface{}, msgAndArgs ...interface{})
NotNil asserts that the specified object is not nil.
assert.NotNil(t, err)
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 Positive(t TestingT, e interface{}, msgAndArgs ...interface{})
Positive asserts that the specified element is positive
assert.Positive(t, 1) assert.Positive(t, 1.23)
func Positivef(t TestingT, e interface{}, msg string, args ...interface{})
Positivef asserts that the specified element is positive
assert.Positivef(t, 1, "error message %s", "formatted") assert.Positivef(t, 1.23, "error message %s", "formatted")
func True(t TestingT, value bool, msgAndArgs ...interface{})
True asserts that the specified value is true.
assert.True(t, myBool)
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(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(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")
TestingT is an interface wrapper around *testing.T
type TestingT interface { Errorf(format string, args ...interface{}) FailNow() }