package mock import ( "errors" "fmt" "regexp" "runtime" "sync" "testing" "time" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) /* Test objects */ // ExampleInterface represents an example interface. type ExampleInterface interface { TheExampleMethod(a, b, c int) (int, error) } // TestExampleImplementation is a test implementation of ExampleInterface type TestExampleImplementation struct { Mock } func (i *TestExampleImplementation) TheExampleMethod(a, b, c int) (int, error) { args := i.Called(a, b, c) return args.Int(0), errors.New("Whoops") } func (i *TestExampleImplementation) TheExampleMethod2(yesorno bool) { i.Called(yesorno) } type ExampleType struct { ran bool } func (i *TestExampleImplementation) TheExampleMethod3(et *ExampleType) error { args := i.Called(et) return args.Error(0) } func (i *TestExampleImplementation) TheExampleMethod4(v ExampleInterface) error { args := i.Called(v) return args.Error(0) } func (i *TestExampleImplementation) TheExampleMethod5(ch chan struct{}) error { args := i.Called(ch) return args.Error(0) } func (i *TestExampleImplementation) TheExampleMethod6(m map[string]bool) error { args := i.Called(m) return args.Error(0) } func (i *TestExampleImplementation) TheExampleMethod7(slice []bool) error { args := i.Called(slice) return args.Error(0) } func (i *TestExampleImplementation) TheExampleMethodFunc(fn func(string) error) error { args := i.Called(fn) return args.Error(0) } func (i *TestExampleImplementation) TheExampleMethodVariadic(a ...int) error { args := i.Called(a) return args.Error(0) } func (i *TestExampleImplementation) TheExampleMethodVariadicInterface(a ...interface{}) error { args := i.Called(a) return args.Error(0) } func (i *TestExampleImplementation) TheExampleMethodMixedVariadic(a int, b ...int) error { args := i.Called(a, b) return args.Error(0) } type ExampleFuncType func(string) error func (i *TestExampleImplementation) TheExampleMethodFuncType(fn ExampleFuncType) error { args := i.Called(fn) return args.Error(0) } // MockTestingT mocks a test struct type MockTestingT struct { logfCount, errorfCount, failNowCount int } const mockTestingTFailNowCalled = "FailNow was called" func (m *MockTestingT) Logf(string, ...interface{}) { m.logfCount++ } func (m *MockTestingT) Errorf(string, ...interface{}) { m.errorfCount++ } // FailNow mocks the FailNow call. // It panics in order to mimic the FailNow behavior in the sense that // the execution stops. // When expecting this method, the call that invokes it should use the following code: // // assert.PanicsWithValue(t, mockTestingTFailNowCalled, func() {...}) func (m *MockTestingT) FailNow() { m.failNowCount++ // this function should panic now to stop the execution as expected panic(mockTestingTFailNowCalled) } /* Mock */ func Test_Mock_TestData(t *testing.T) { var mockedService = new(TestExampleImplementation) if assert.NotNil(t, mockedService.TestData()) { mockedService.TestData().Set("something", 123) assert.Equal(t, 123, mockedService.TestData().Get("something").Data()) } } func Test_Mock_On(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService.On("TheExampleMethod") assert.Equal(t, []*Call{c}, mockedService.ExpectedCalls) assert.Equal(t, "TheExampleMethod", c.Method) } func Test_Mock_Chained_On(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) // determine our current line number so we can assert the expected calls callerInfo properly _, _, line, _ := runtime.Caller(0) mockedService. On("TheExampleMethod", 1, 2, 3). Return(0). On("TheExampleMethod3", AnythingOfType("*mock.ExampleType")). Return(nil) expectedCalls := []*Call{ { Parent: &mockedService.Mock, Method: "TheExampleMethod", Arguments: []interface{}{1, 2, 3}, ReturnArguments: []interface{}{0}, callerInfo: []string{fmt.Sprintf("mock_test.go:%d", line+2)}, }, { Parent: &mockedService.Mock, Method: "TheExampleMethod3", Arguments: []interface{}{AnythingOfType("*mock.ExampleType")}, ReturnArguments: []interface{}{nil}, callerInfo: []string{fmt.Sprintf("mock_test.go:%d", line+4)}, }, } assert.Equal(t, expectedCalls, mockedService.ExpectedCalls) } func Test_Mock_On_WithArgs(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService.On("TheExampleMethod", 1, 2, 3, 4) assert.Equal(t, []*Call{c}, mockedService.ExpectedCalls) assert.Equal(t, "TheExampleMethod", c.Method) assert.Equal(t, Arguments{1, 2, 3, 4}, c.Arguments) } func Test_Mock_On_WithFuncArg(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService. On("TheExampleMethodFunc", AnythingOfType("func(string) error")). Return(nil) assert.Equal(t, []*Call{c}, mockedService.ExpectedCalls) assert.Equal(t, "TheExampleMethodFunc", c.Method) assert.Equal(t, 1, len(c.Arguments)) assert.Equal(t, AnythingOfType("func(string) error"), c.Arguments[0]) fn := func(string) error { return nil } assert.NotPanics(t, func() { mockedService.TheExampleMethodFunc(fn) }) } func Test_Mock_On_WithIntArgMatcher(t *testing.T) { var mockedService TestExampleImplementation mockedService.On("TheExampleMethod", MatchedBy(func(a int) bool { return a == 1 }), MatchedBy(func(b int) bool { return b == 2 }), MatchedBy(func(c int) bool { return c == 3 })).Return(0, nil) assert.Panics(t, func() { mockedService.TheExampleMethod(1, 2, 4) }) assert.Panics(t, func() { mockedService.TheExampleMethod(2, 2, 3) }) assert.NotPanics(t, func() { mockedService.TheExampleMethod(1, 2, 3) }) } func TestMock_WithTest(t *testing.T) { var ( mockedService TestExampleImplementation mockedTest MockTestingT ) mockedService.Test(&mockedTest) mockedService.On("TheExampleMethod", 1, 2, 3).Return(0, nil) // Test that on an expected call, the test was not failed mockedService.TheExampleMethod(1, 2, 3) // Assert that Errorf and FailNow were not called assert.Equal(t, 0, mockedTest.errorfCount) assert.Equal(t, 0, mockedTest.failNowCount) // Test that on unexpected call, the mocked test was called to fail the test assert.PanicsWithValue(t, mockTestingTFailNowCalled, func() { mockedService.TheExampleMethod(1, 1, 1) }) // Assert that Errorf and FailNow were called once assert.Equal(t, 1, mockedTest.errorfCount) assert.Equal(t, 1, mockedTest.failNowCount) } func Test_Mock_On_WithPtrArgMatcher(t *testing.T) { var mockedService TestExampleImplementation mockedService.On("TheExampleMethod3", MatchedBy(func(a *ExampleType) bool { return a != nil && a.ran == true }), ).Return(nil) mockedService.On("TheExampleMethod3", MatchedBy(func(a *ExampleType) bool { return a != nil && a.ran == false }), ).Return(errors.New("error")) mockedService.On("TheExampleMethod3", MatchedBy(func(a *ExampleType) bool { return a == nil }), ).Return(errors.New("error2")) assert.Equal(t, mockedService.TheExampleMethod3(&ExampleType{true}), nil) assert.EqualError(t, mockedService.TheExampleMethod3(&ExampleType{false}), "error") assert.EqualError(t, mockedService.TheExampleMethod3(nil), "error2") } func Test_Mock_On_WithFuncArgMatcher(t *testing.T) { var mockedService TestExampleImplementation fixture1, fixture2 := errors.New("fixture1"), errors.New("fixture2") mockedService.On("TheExampleMethodFunc", MatchedBy(func(a func(string) error) bool { return a != nil && a("string") == fixture1 }), ).Return(errors.New("fixture1")) mockedService.On("TheExampleMethodFunc", MatchedBy(func(a func(string) error) bool { return a != nil && a("string") == fixture2 }), ).Return(errors.New("fixture2")) mockedService.On("TheExampleMethodFunc", MatchedBy(func(a func(string) error) bool { return a == nil }), ).Return(errors.New("fixture3")) assert.EqualError(t, mockedService.TheExampleMethodFunc( func(string) error { return fixture1 }), "fixture1") assert.EqualError(t, mockedService.TheExampleMethodFunc( func(string) error { return fixture2 }), "fixture2") assert.EqualError(t, mockedService.TheExampleMethodFunc(nil), "fixture3") } func Test_Mock_On_WithInterfaceArgMatcher(t *testing.T) { var mockedService TestExampleImplementation mockedService.On("TheExampleMethod4", MatchedBy(func(a ExampleInterface) bool { return a == nil }), ).Return(errors.New("fixture1")) assert.EqualError(t, mockedService.TheExampleMethod4(nil), "fixture1") } func Test_Mock_On_WithChannelArgMatcher(t *testing.T) { var mockedService TestExampleImplementation mockedService.On("TheExampleMethod5", MatchedBy(func(ch chan struct{}) bool { return ch == nil }), ).Return(errors.New("fixture1")) assert.EqualError(t, mockedService.TheExampleMethod5(nil), "fixture1") } func Test_Mock_On_WithMapArgMatcher(t *testing.T) { var mockedService TestExampleImplementation mockedService.On("TheExampleMethod6", MatchedBy(func(m map[string]bool) bool { return m == nil }), ).Return(errors.New("fixture1")) assert.EqualError(t, mockedService.TheExampleMethod6(nil), "fixture1") } func Test_Mock_On_WithSliceArgMatcher(t *testing.T) { var mockedService TestExampleImplementation mockedService.On("TheExampleMethod7", MatchedBy(func(slice []bool) bool { return slice == nil }), ).Return(errors.New("fixture1")) assert.EqualError(t, mockedService.TheExampleMethod7(nil), "fixture1") } func Test_Mock_On_WithVariadicFunc(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService. On("TheExampleMethodVariadic", []int{1, 2, 3}). Return(nil) assert.Equal(t, []*Call{c}, mockedService.ExpectedCalls) assert.Equal(t, 1, len(c.Arguments)) assert.Equal(t, []int{1, 2, 3}, c.Arguments[0]) assert.NotPanics(t, func() { mockedService.TheExampleMethodVariadic(1, 2, 3) }) assert.Panics(t, func() { mockedService.TheExampleMethodVariadic(1, 2) }) } func Test_Mock_On_WithMixedVariadicFunc(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService. On("TheExampleMethodMixedVariadic", 1, []int{2, 3, 4}). Return(nil) assert.Equal(t, []*Call{c}, mockedService.ExpectedCalls) assert.Equal(t, 2, len(c.Arguments)) assert.Equal(t, 1, c.Arguments[0]) assert.Equal(t, []int{2, 3, 4}, c.Arguments[1]) assert.NotPanics(t, func() { mockedService.TheExampleMethodMixedVariadic(1, 2, 3, 4) }) assert.Panics(t, func() { mockedService.TheExampleMethodMixedVariadic(1, 2, 3, 5) }) } func Test_Mock_On_WithVariadicFuncWithInterface(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService.On("TheExampleMethodVariadicInterface", []interface{}{1, 2, 3}). Return(nil) assert.Equal(t, []*Call{c}, mockedService.ExpectedCalls) assert.Equal(t, 1, len(c.Arguments)) assert.Equal(t, []interface{}{1, 2, 3}, c.Arguments[0]) assert.NotPanics(t, func() { mockedService.TheExampleMethodVariadicInterface(1, 2, 3) }) assert.Panics(t, func() { mockedService.TheExampleMethodVariadicInterface(1, 2) }) } func Test_Mock_On_WithVariadicFuncWithEmptyInterfaceArray(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) var expected []interface{} c := mockedService. On("TheExampleMethodVariadicInterface", expected). Return(nil) assert.Equal(t, []*Call{c}, mockedService.ExpectedCalls) assert.Equal(t, 1, len(c.Arguments)) assert.Equal(t, expected, c.Arguments[0]) assert.NotPanics(t, func() { mockedService.TheExampleMethodVariadicInterface() }) assert.Panics(t, func() { mockedService.TheExampleMethodVariadicInterface(1, 2) }) } func Test_Mock_On_WithFuncPanics(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) assert.Panics(t, func() { mockedService.On("TheExampleMethodFunc", func(string) error { return nil }) }) } func Test_Mock_On_WithFuncTypeArg(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService. On("TheExampleMethodFuncType", AnythingOfType("mock.ExampleFuncType")). Return(nil) assert.Equal(t, []*Call{c}, mockedService.ExpectedCalls) assert.Equal(t, 1, len(c.Arguments)) assert.Equal(t, AnythingOfType("mock.ExampleFuncType"), c.Arguments[0]) fn := func(string) error { return nil } assert.NotPanics(t, func() { mockedService.TheExampleMethodFuncType(fn) }) } func Test_Mock_Return(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService. On("TheExampleMethod", "A", "B", true). Return(1, "two", true) require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod", call.Method) assert.Equal(t, "A", call.Arguments[0]) assert.Equal(t, "B", call.Arguments[1]) assert.Equal(t, true, call.Arguments[2]) assert.Equal(t, 1, call.ReturnArguments[0]) assert.Equal(t, "two", call.ReturnArguments[1]) assert.Equal(t, true, call.ReturnArguments[2]) assert.Equal(t, 0, call.Repeatability) assert.Nil(t, call.WaitFor) } func Test_Mock_Return_WaitUntil(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) ch := time.After(time.Second) c := mockedService.Mock. On("TheExampleMethod", "A", "B", true). WaitUntil(ch). Return(1, "two", true) // assert that the call was created require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod", call.Method) assert.Equal(t, "A", call.Arguments[0]) assert.Equal(t, "B", call.Arguments[1]) assert.Equal(t, true, call.Arguments[2]) assert.Equal(t, 1, call.ReturnArguments[0]) assert.Equal(t, "two", call.ReturnArguments[1]) assert.Equal(t, true, call.ReturnArguments[2]) assert.Equal(t, 0, call.Repeatability) assert.Equal(t, ch, call.WaitFor) } func Test_Mock_Return_After(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService.Mock. On("TheExampleMethod", "A", "B", true). Return(1, "two", true). After(time.Second) require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.Mock.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod", call.Method) assert.Equal(t, "A", call.Arguments[0]) assert.Equal(t, "B", call.Arguments[1]) assert.Equal(t, true, call.Arguments[2]) assert.Equal(t, 1, call.ReturnArguments[0]) assert.Equal(t, "two", call.ReturnArguments[1]) assert.Equal(t, true, call.ReturnArguments[2]) assert.Equal(t, 0, call.Repeatability) assert.NotEqual(t, nil, call.WaitFor) } func Test_Mock_Return_Run(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) fn := func(args Arguments) { arg := args.Get(0).(*ExampleType) arg.ran = true } c := mockedService.Mock. On("TheExampleMethod3", AnythingOfType("*mock.ExampleType")). Return(nil). Run(fn) require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.Mock.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod3", call.Method) assert.Equal(t, AnythingOfType("*mock.ExampleType"), call.Arguments[0]) assert.Equal(t, nil, call.ReturnArguments[0]) assert.Equal(t, 0, call.Repeatability) assert.NotEqual(t, nil, call.WaitFor) assert.NotNil(t, call.Run) et := ExampleType{} assert.Equal(t, false, et.ran) mockedService.TheExampleMethod3(&et) assert.Equal(t, true, et.ran) } func Test_Mock_Return_Run_Out_Of_Order(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) f := func(args Arguments) { arg := args.Get(0).(*ExampleType) arg.ran = true } c := mockedService.Mock. On("TheExampleMethod3", AnythingOfType("*mock.ExampleType")). Run(f). Return(nil) require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.Mock.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod3", call.Method) assert.Equal(t, AnythingOfType("*mock.ExampleType"), call.Arguments[0]) assert.Equal(t, nil, call.ReturnArguments[0]) assert.Equal(t, 0, call.Repeatability) assert.NotEqual(t, nil, call.WaitFor) assert.NotNil(t, call.Run) } func Test_Mock_Return_Once(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService.On("TheExampleMethod", "A", "B", true). Return(1, "two", true). Once() require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod", call.Method) assert.Equal(t, "A", call.Arguments[0]) assert.Equal(t, "B", call.Arguments[1]) assert.Equal(t, true, call.Arguments[2]) assert.Equal(t, 1, call.ReturnArguments[0]) assert.Equal(t, "two", call.ReturnArguments[1]) assert.Equal(t, true, call.ReturnArguments[2]) assert.Equal(t, 1, call.Repeatability) assert.Nil(t, call.WaitFor) } func Test_Mock_Return_Twice(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService. On("TheExampleMethod", "A", "B", true). Return(1, "two", true). Twice() require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod", call.Method) assert.Equal(t, "A", call.Arguments[0]) assert.Equal(t, "B", call.Arguments[1]) assert.Equal(t, true, call.Arguments[2]) assert.Equal(t, 1, call.ReturnArguments[0]) assert.Equal(t, "two", call.ReturnArguments[1]) assert.Equal(t, true, call.ReturnArguments[2]) assert.Equal(t, 2, call.Repeatability) assert.Nil(t, call.WaitFor) } func Test_Mock_Return_Times(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService. On("TheExampleMethod", "A", "B", true). Return(1, "two", true). Times(5) require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod", call.Method) assert.Equal(t, "A", call.Arguments[0]) assert.Equal(t, "B", call.Arguments[1]) assert.Equal(t, true, call.Arguments[2]) assert.Equal(t, 1, call.ReturnArguments[0]) assert.Equal(t, "two", call.ReturnArguments[1]) assert.Equal(t, true, call.ReturnArguments[2]) assert.Equal(t, 5, call.Repeatability) assert.Nil(t, call.WaitFor) } func Test_Mock_Return_Nothing(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) c := mockedService. On("TheExampleMethod", "A", "B", true). Return() require.Equal(t, []*Call{c}, mockedService.ExpectedCalls) call := mockedService.ExpectedCalls[0] assert.Equal(t, "TheExampleMethod", call.Method) assert.Equal(t, "A", call.Arguments[0]) assert.Equal(t, "B", call.Arguments[1]) assert.Equal(t, true, call.Arguments[2]) assert.Equal(t, 0, len(call.ReturnArguments)) } func Test_Mock_findExpectedCall(t *testing.T) { m := new(Mock) m.On("One", 1).Return("one") m.On("Two", 2).Return("two") m.On("Two", 3).Return("three") f, c := m.findExpectedCall("Two", 3) if assert.Equal(t, 2, f) { if assert.NotNil(t, c) { assert.Equal(t, "Two", c.Method) assert.Equal(t, 3, c.Arguments[0]) assert.Equal(t, "three", c.ReturnArguments[0]) } } } func Test_Mock_findExpectedCall_For_Unknown_Method(t *testing.T) { m := new(Mock) m.On("One", 1).Return("one") m.On("Two", 2).Return("two") m.On("Two", 3).Return("three") f, _ := m.findExpectedCall("Two") assert.Equal(t, -1, f) } func Test_Mock_findExpectedCall_Respects_Repeatability(t *testing.T) { m := new(Mock) m.On("One", 1).Return("one") m.On("Two", 2).Return("two").Once() m.On("Two", 3).Return("three").Twice() m.On("Two", 3).Return("three").Times(8) f, c := m.findExpectedCall("Two", 3) if assert.Equal(t, 2, f) { if assert.NotNil(t, c) { assert.Equal(t, "Two", c.Method) assert.Equal(t, 3, c.Arguments[0]) assert.Equal(t, "three", c.ReturnArguments[0]) } } } func Test_callString(t *testing.T) { assert.Equal(t, `Method(int,bool,string)`, callString("Method", []interface{}{1, true, "something"}, false)) } func Test_Mock_Called(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_Called", 1, 2, 3).Return(5, "6", true) returnArguments := mockedService.Called(1, 2, 3) if assert.Equal(t, 1, len(mockedService.Calls)) { assert.Equal(t, "Test_Mock_Called", mockedService.Calls[0].Method) assert.Equal(t, 1, mockedService.Calls[0].Arguments[0]) assert.Equal(t, 2, mockedService.Calls[0].Arguments[1]) assert.Equal(t, 3, mockedService.Calls[0].Arguments[2]) } if assert.Equal(t, 3, len(returnArguments)) { assert.Equal(t, 5, returnArguments[0]) assert.Equal(t, "6", returnArguments[1]) assert.Equal(t, true, returnArguments[2]) } } func asyncCall(m *Mock, ch chan Arguments) { ch <- m.Called(1, 2, 3) } func Test_Mock_Called_blocks(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.Mock.On("asyncCall", 1, 2, 3).Return(5, "6", true).After(2 * time.Millisecond) ch := make(chan Arguments) go asyncCall(&mockedService.Mock, ch) select { case <-ch: t.Fatal("should have waited") case <-time.After(1 * time.Millisecond): } returnArguments := <-ch if assert.Equal(t, 1, len(mockedService.Mock.Calls)) { assert.Equal(t, "asyncCall", mockedService.Mock.Calls[0].Method) assert.Equal(t, 1, mockedService.Mock.Calls[0].Arguments[0]) assert.Equal(t, 2, mockedService.Mock.Calls[0].Arguments[1]) assert.Equal(t, 3, mockedService.Mock.Calls[0].Arguments[2]) } if assert.Equal(t, 3, len(returnArguments)) { assert.Equal(t, 5, returnArguments[0]) assert.Equal(t, "6", returnArguments[1]) assert.Equal(t, true, returnArguments[2]) } } func Test_Mock_Called_For_Bounded_Repeatability(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService. On("Test_Mock_Called_For_Bounded_Repeatability", 1, 2, 3). Return(5, "6", true). Once() mockedService. On("Test_Mock_Called_For_Bounded_Repeatability", 1, 2, 3). Return(-1, "hi", false) returnArguments1 := mockedService.Called(1, 2, 3) returnArguments2 := mockedService.Called(1, 2, 3) if assert.Equal(t, 2, len(mockedService.Calls)) { assert.Equal(t, "Test_Mock_Called_For_Bounded_Repeatability", mockedService.Calls[0].Method) assert.Equal(t, 1, mockedService.Calls[0].Arguments[0]) assert.Equal(t, 2, mockedService.Calls[0].Arguments[1]) assert.Equal(t, 3, mockedService.Calls[0].Arguments[2]) assert.Equal(t, "Test_Mock_Called_For_Bounded_Repeatability", mockedService.Calls[1].Method) assert.Equal(t, 1, mockedService.Calls[1].Arguments[0]) assert.Equal(t, 2, mockedService.Calls[1].Arguments[1]) assert.Equal(t, 3, mockedService.Calls[1].Arguments[2]) } if assert.Equal(t, 3, len(returnArguments1)) { assert.Equal(t, 5, returnArguments1[0]) assert.Equal(t, "6", returnArguments1[1]) assert.Equal(t, true, returnArguments1[2]) } if assert.Equal(t, 3, len(returnArguments2)) { assert.Equal(t, -1, returnArguments2[0]) assert.Equal(t, "hi", returnArguments2[1]) assert.Equal(t, false, returnArguments2[2]) } } func Test_Mock_Called_For_SetTime_Expectation(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("TheExampleMethod", 1, 2, 3).Return(5, "6", true).Times(4) mockedService.TheExampleMethod(1, 2, 3) mockedService.TheExampleMethod(1, 2, 3) mockedService.TheExampleMethod(1, 2, 3) mockedService.TheExampleMethod(1, 2, 3) assert.Panics(t, func() { mockedService.TheExampleMethod(1, 2, 3) }) } func Test_Mock_Called_Unexpected(t *testing.T) { var mockedService = new(TestExampleImplementation) // make sure it panics if no expectation was made assert.Panics(t, func() { mockedService.Called(1, 2, 3) }, "Calling unexpected method should panic") } func Test_AssertExpectationsForObjects_Helper(t *testing.T) { var mockedService1 = new(TestExampleImplementation) var mockedService2 = new(TestExampleImplementation) var mockedService3 = new(TestExampleImplementation) mockedService1.On("Test_AssertExpectationsForObjects_Helper", 1).Return() mockedService2.On("Test_AssertExpectationsForObjects_Helper", 2).Return() mockedService3.On("Test_AssertExpectationsForObjects_Helper", 3).Return() mockedService1.Called(1) mockedService2.Called(2) mockedService3.Called(3) assert.True(t, AssertExpectationsForObjects(t, &mockedService1.Mock, &mockedService2.Mock, &mockedService3.Mock)) assert.True(t, AssertExpectationsForObjects(t, mockedService1, mockedService2, mockedService3)) } func Test_AssertExpectationsForObjects_Helper_Failed(t *testing.T) { var mockedService1 = new(TestExampleImplementation) var mockedService2 = new(TestExampleImplementation) var mockedService3 = new(TestExampleImplementation) mockedService1.On("Test_AssertExpectationsForObjects_Helper_Failed", 1).Return() mockedService2.On("Test_AssertExpectationsForObjects_Helper_Failed", 2).Return() mockedService3.On("Test_AssertExpectationsForObjects_Helper_Failed", 3).Return() mockedService1.Called(1) mockedService3.Called(3) tt := new(testing.T) assert.False(t, AssertExpectationsForObjects(tt, &mockedService1.Mock, &mockedService2.Mock, &mockedService3.Mock)) assert.False(t, AssertExpectationsForObjects(tt, mockedService1, mockedService2, mockedService3)) } func Test_Mock_AssertExpectations(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertExpectations", 1, 2, 3).Return(5, 6, 7) tt := new(testing.T) assert.False(t, mockedService.AssertExpectations(tt)) // make the call now mockedService.Called(1, 2, 3) // now assert expectations assert.True(t, mockedService.AssertExpectations(tt)) } func Test_Mock_AssertExpectations_Placeholder_NoArgs(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertExpectations_Placeholder_NoArgs").Return(5, 6, 7).Once() mockedService.On("Test_Mock_AssertExpectations_Placeholder_NoArgs").Return(7, 6, 5) tt := new(testing.T) assert.False(t, mockedService.AssertExpectations(tt)) // make the call now mockedService.Called() // now assert expectations assert.True(t, mockedService.AssertExpectations(tt)) } func Test_Mock_AssertExpectations_Placeholder(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertExpectations_Placeholder", 1, 2, 3).Return(5, 6, 7).Once() mockedService.On("Test_Mock_AssertExpectations_Placeholder", 3, 2, 1).Return(7, 6, 5) tt := new(testing.T) assert.False(t, mockedService.AssertExpectations(tt)) // make the call now mockedService.Called(1, 2, 3) // now assert expectations assert.False(t, mockedService.AssertExpectations(tt)) // make call to the second expectation mockedService.Called(3, 2, 1) // now assert expectations again assert.True(t, mockedService.AssertExpectations(tt)) } func Test_Mock_AssertExpectations_With_Pointers(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertExpectations_With_Pointers", &struct{ Foo int }{1}).Return(1) mockedService.On("Test_Mock_AssertExpectations_With_Pointers", &struct{ Foo int }{2}).Return(2) tt := new(testing.T) assert.False(t, mockedService.AssertExpectations(tt)) s := struct{ Foo int }{1} // make the calls now mockedService.Called(&s) s.Foo = 2 mockedService.Called(&s) // now assert expectations assert.True(t, mockedService.AssertExpectations(tt)) } func Test_Mock_AssertExpectationsCustomType(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("TheExampleMethod3", AnythingOfType("*mock.ExampleType")).Return(nil).Once() tt := new(testing.T) assert.False(t, mockedService.AssertExpectations(tt)) // make the call now mockedService.TheExampleMethod3(&ExampleType{}) // now assert expectations assert.True(t, mockedService.AssertExpectations(tt)) } func Test_Mock_AssertExpectations_With_Repeatability(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertExpectations_With_Repeatability", 1, 2, 3).Return(5, 6, 7).Twice() tt := new(testing.T) assert.False(t, mockedService.AssertExpectations(tt)) // make the call now mockedService.Called(1, 2, 3) assert.False(t, mockedService.AssertExpectations(tt)) mockedService.Called(1, 2, 3) // now assert expectations assert.True(t, mockedService.AssertExpectations(tt)) } func Test_Mock_TwoCallsWithDifferentArguments(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_TwoCallsWithDifferentArguments", 1, 2, 3).Return(5, 6, 7) mockedService.On("Test_Mock_TwoCallsWithDifferentArguments", 4, 5, 6).Return(5, 6, 7) args1 := mockedService.Called(1, 2, 3) assert.Equal(t, 5, args1.Int(0)) assert.Equal(t, 6, args1.Int(1)) assert.Equal(t, 7, args1.Int(2)) args2 := mockedService.Called(4, 5, 6) assert.Equal(t, 5, args2.Int(0)) assert.Equal(t, 6, args2.Int(1)) assert.Equal(t, 7, args2.Int(2)) } func Test_Mock_AssertNumberOfCalls(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertNumberOfCalls", 1, 2, 3).Return(5, 6, 7) mockedService.Called(1, 2, 3) assert.True(t, mockedService.AssertNumberOfCalls(t, "Test_Mock_AssertNumberOfCalls", 1)) mockedService.Called(1, 2, 3) assert.True(t, mockedService.AssertNumberOfCalls(t, "Test_Mock_AssertNumberOfCalls", 2)) } func Test_Mock_AssertCalled(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertCalled", 1, 2, 3).Return(5, 6, 7) mockedService.Called(1, 2, 3) assert.True(t, mockedService.AssertCalled(t, "Test_Mock_AssertCalled", 1, 2, 3)) } func Test_Mock_AssertCalled_WithAnythingOfTypeArgument(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService. On("Test_Mock_AssertCalled_WithAnythingOfTypeArgument", Anything, Anything, Anything). Return() mockedService.Called(1, "two", []uint8("three")) assert.True(t, mockedService.AssertCalled(t, "Test_Mock_AssertCalled_WithAnythingOfTypeArgument", AnythingOfType("int"), AnythingOfType("string"), AnythingOfType("[]uint8"))) } func Test_Mock_AssertCalled_WithArguments(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertCalled_WithArguments", 1, 2, 3).Return(5, 6, 7) mockedService.Called(1, 2, 3) tt := new(testing.T) assert.True(t, mockedService.AssertCalled(tt, "Test_Mock_AssertCalled_WithArguments", 1, 2, 3)) assert.False(t, mockedService.AssertCalled(tt, "Test_Mock_AssertCalled_WithArguments", 2, 3, 4)) } func Test_Mock_AssertCalled_WithArguments_With_Repeatability(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertCalled_WithArguments_With_Repeatability", 1, 2, 3).Return(5, 6, 7).Once() mockedService.On("Test_Mock_AssertCalled_WithArguments_With_Repeatability", 2, 3, 4).Return(5, 6, 7).Once() mockedService.Called(1, 2, 3) mockedService.Called(2, 3, 4) tt := new(testing.T) assert.True(t, mockedService.AssertCalled(tt, "Test_Mock_AssertCalled_WithArguments_With_Repeatability", 1, 2, 3)) assert.True(t, mockedService.AssertCalled(tt, "Test_Mock_AssertCalled_WithArguments_With_Repeatability", 2, 3, 4)) assert.False(t, mockedService.AssertCalled(tt, "Test_Mock_AssertCalled_WithArguments_With_Repeatability", 3, 4, 5)) } func Test_Mock_AssertNotCalled(t *testing.T) { var mockedService = new(TestExampleImplementation) mockedService.On("Test_Mock_AssertNotCalled", 1, 2, 3).Return(5, 6, 7) mockedService.Called(1, 2, 3) assert.True(t, mockedService.AssertNotCalled(t, "Test_Mock_NotCalled")) } func Test_Mock_AssertOptional(t *testing.T) { // Optional called var ms1 = new(TestExampleImplementation) ms1.On("TheExampleMethod", 1, 2, 3).Maybe().Return(4, nil) ms1.TheExampleMethod(1, 2, 3) tt1 := new(testing.T) assert.Equal(t, true, ms1.AssertExpectations(tt1)) // Optional not called var ms2 = new(TestExampleImplementation) ms2.On("TheExampleMethod", 1, 2, 3).Maybe().Return(4, nil) tt2 := new(testing.T) assert.Equal(t, true, ms2.AssertExpectations(tt2)) // Non-optional called var ms3 = new(TestExampleImplementation) ms3.On("TheExampleMethod", 1, 2, 3).Return(4, nil) ms3.TheExampleMethod(1, 2, 3) tt3 := new(testing.T) assert.Equal(t, true, ms3.AssertExpectations(tt3)) } /* Arguments helper methods */ func Test_Arguments_Get(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) assert.Equal(t, "string", args.Get(0).(string)) assert.Equal(t, 123, args.Get(1).(int)) assert.Equal(t, true, args.Get(2).(bool)) } func Test_Arguments_Is(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) assert.True(t, args.Is("string", 123, true)) assert.False(t, args.Is("wrong", 456, false)) } func Test_Arguments_Diff(t *testing.T) { var args = Arguments([]interface{}{"Hello World", 123, true}) var diff string var count int diff, count = args.Diff([]interface{}{"Hello World", 456, "false"}) assert.Equal(t, 2, count) assert.Contains(t, diff, `(int=456) != (int=123)`) assert.Contains(t, diff, `(string=false) != (bool=true)`) } func Test_Arguments_Diff_DifferentNumberOfArgs(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) var diff string var count int diff, count = args.Diff([]interface{}{"string", 456, "false", "extra"}) assert.Equal(t, 3, count) assert.Contains(t, diff, `(string=extra) != (Missing)`) } func Test_Arguments_Diff_WithAnythingArgument(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) var count int _, count = args.Diff([]interface{}{"string", Anything, true}) assert.Equal(t, 0, count) } func Test_Arguments_Diff_WithAnythingArgument_InActualToo(t *testing.T) { var args = Arguments([]interface{}{"string", Anything, true}) var count int _, count = args.Diff([]interface{}{"string", 123, true}) assert.Equal(t, 0, count) } func Test_Arguments_Diff_WithAnythingOfTypeArgument(t *testing.T) { var args = Arguments([]interface{}{"string", AnythingOfType("int"), true}) var count int _, count = args.Diff([]interface{}{"string", 123, true}) assert.Equal(t, 0, count) } func Test_Arguments_Diff_WithAnythingOfTypeArgument_Failing(t *testing.T) { var args = Arguments([]interface{}{"string", AnythingOfType("string"), true}) var count int var diff string diff, count = args.Diff([]interface{}{"string", 123, true}) assert.Equal(t, 1, count) assert.Contains(t, diff, `string != type int - (int=123)`) } func Test_Arguments_Diff_WithArgMatcher(t *testing.T) { matchFn := func(a int) bool { return a == 123 } var args = Arguments([]interface{}{"string", MatchedBy(matchFn), true}) diff, count := args.Diff([]interface{}{"string", 124, true}) assert.Equal(t, 1, count) assert.Contains(t, diff, `(int=124) not matched by func(int) bool`) diff, count = args.Diff([]interface{}{"string", false, true}) assert.Equal(t, 1, count) assert.Contains(t, diff, `(bool=false) not matched by func(int) bool`) diff, count = args.Diff([]interface{}{"string", 123, false}) assert.Contains(t, diff, `(int=123) matched by func(int) bool`) diff, count = args.Diff([]interface{}{"string", 123, true}) assert.Equal(t, 0, count) assert.Contains(t, diff, `No differences.`) } func Test_Arguments_Assert(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) assert.True(t, args.Assert(t, "string", 123, true)) } func Test_Arguments_String_Representation(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) assert.Equal(t, `string,int,bool`, args.String()) } func Test_Arguments_String(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) assert.Equal(t, "string", args.String(0)) } func Test_Arguments_Error(t *testing.T) { var err = errors.New("An Error") var args = Arguments([]interface{}{"string", 123, true, err}) assert.Equal(t, err, args.Error(3)) } func Test_Arguments_Error_Nil(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true, nil}) assert.Equal(t, nil, args.Error(3)) } func Test_Arguments_Int(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) assert.Equal(t, 123, args.Int(1)) } func Test_Arguments_Bool(t *testing.T) { var args = Arguments([]interface{}{"string", 123, true}) assert.Equal(t, true, args.Bool(2)) } func Test_WaitUntil_Parallel(t *testing.T) { // make a test impl object var mockedService = new(TestExampleImplementation) ch1 := make(chan time.Time) ch2 := make(chan time.Time) mockedService.Mock.On("TheExampleMethod2", true).Return().WaitUntil(ch2).Run(func(args Arguments) { ch1 <- time.Now() }) mockedService.Mock.On("TheExampleMethod2", false).Return().WaitUntil(ch1) // Lock both goroutines on the .WaitUntil method go func() { mockedService.TheExampleMethod2(false) }() go func() { mockedService.TheExampleMethod2(true) }() // Allow the first call to execute, so the second one executes afterwards ch2 <- time.Now() } func Test_MockMethodCalled(t *testing.T) { m := new(Mock) m.On("foo", "hello").Return("world") retArgs := m.MethodCalled("foo", "hello") require.True(t, len(retArgs) == 1) require.Equal(t, "world", retArgs[0]) m.AssertExpectations(t) } // Test to validate fix for racy concurrent call access in MethodCalled() func Test_MockReturnAndCalledConcurrent(t *testing.T) { iterations := 1000 m := &Mock{} call := m.On("ConcurrencyTestMethod") wg := sync.WaitGroup{} wg.Add(2) go func() { for i := 0; i < iterations; i++ { call.Return(10) } wg.Done() }() go func() { for i := 0; i < iterations; i++ { ConcurrencyTestMethod(m) } wg.Done() }() wg.Wait() } type timer struct{ Mock } func (s *timer) GetTime(i int) string { return s.Called(i).Get(0).(string) } type tCustomLogger struct { *testing.T logs []string errs []string } func (tc *tCustomLogger) Logf(format string, args ...interface{}) { tc.T.Logf(format, args...) tc.logs = append(tc.logs, fmt.Sprintf(format, args...)) } func (tc *tCustomLogger) Errorf(format string, args ...interface{}) { tc.errs = append(tc.errs, fmt.Sprintf(format, args...)) } func (tc *tCustomLogger) FailNow() {} func TestLoggingAssertExpectations(t *testing.T) { m := new(timer) m.On("GetTime", 0).Return("") tcl := &tCustomLogger{t, []string{}, []string{}} AssertExpectationsForObjects(tcl, m, new(TestExampleImplementation)) require.Equal(t, 1, len(tcl.errs)) assert.Regexp(t, regexp.MustCompile("(?s)FAIL: 0 out of 1 expectation\\(s\\) were met.*The code you are testing needs to make 1 more call\\(s\\).*"), tcl.errs[0]) require.Equal(t, 2, len(tcl.logs)) assert.Regexp(t, regexp.MustCompile("(?s)FAIL:\tGetTime\\(int\\).*"), tcl.logs[0]) require.Equal(t, "Expectations didn't match for Mock: *mock.timer", tcl.logs[1]) } func TestAfterTotalWaitTimeWhileExecution(t *testing.T) { waitDuration := 1 total, waitMs := 5, time.Millisecond*time.Duration(waitDuration) aTimer := new(timer) for i := 0; i < total; i++ { aTimer.On("GetTime", i).After(waitMs).Return(fmt.Sprintf("Time%d", i)).Once() } time.Sleep(waitMs) start := time.Now() var results []string for i := 0; i < total; i++ { results = append(results, aTimer.GetTime(i)) } end := time.Now() elapsedTime := end.Sub(start) assert.True(t, elapsedTime > waitMs, fmt.Sprintf("Total elapsed time:%v should be atleast greater than %v", elapsedTime, waitMs)) assert.Equal(t, total, len(results)) for i := range results { assert.Equal(t, fmt.Sprintf("Time%d", i), results[i], "Return value of method should be same") } } func TestArgumentMatcherToPrintMismatch(t *testing.T) { defer func() { if r := recover(); r != nil { matchingExp := regexp.MustCompile( `\s+mock: Unexpected Method Call\s+-*\s+GetTime\(int\)\s+0: 1\s+The closest call I have is:\s+GetTime\(mock.argumentMatcher\)\s+0: mock.argumentMatcher\{.*?\}\s+Diff:.*\(int=1\) not matched by func\(int\) bool`) assert.Regexp(t, matchingExp, r) } }() m := new(timer) m.On("GetTime", MatchedBy(func(i int) bool { return false })).Return("SomeTime").Once() res := m.GetTime(1) require.Equal(t, "SomeTime", res) m.AssertExpectations(t) } func TestClosestCallMismatchedArgumentInformationShowsTheClosest(t *testing.T) { defer func() { if r := recover(); r != nil { matchingExp := regexp.MustCompile(unexpectedCallRegex(`TheExampleMethod(int,int,int)`, `0: 1\s+1: 1\s+2: 2`, `0: 1\s+1: 1\s+2: 1`, `0: PASS: \(int=1\) == \(int=1\)\s+1: PASS: \(int=1\) == \(int=1\)\s+2: FAIL: \(int=2\) != \(int=1\)`)) assert.Regexp(t, matchingExp, r) } }() m := new(TestExampleImplementation) m.On("TheExampleMethod", 1, 1, 1).Return(1, nil).Once() m.On("TheExampleMethod", 2, 2, 2).Return(2, nil).Once() m.TheExampleMethod(1, 1, 2) } func TestClosestCallMismatchedArgumentValueInformation(t *testing.T) { defer func() { if r := recover(); r != nil { matchingExp := regexp.MustCompile(unexpectedCallRegex(`GetTime(int)`, "0: 1", "0: 999", `0: FAIL: \(int=1\) != \(int=999\)`)) assert.Regexp(t, matchingExp, r) } }() m := new(timer) m.On("GetTime", 999).Return("SomeTime").Once() _ = m.GetTime(1) } func unexpectedCallRegex(method, calledArg, expectedArg, diff string) string { rMethod := regexp.QuoteMeta(method) return fmt.Sprintf(`\s+mock: Unexpected Method Call\s+-*\s+%s\s+%s\s+The closest call I have is:\s+%s\s+%s\s+Diff: %s`, rMethod, calledArg, rMethod, expectedArg, diff) } func ConcurrencyTestMethod(m *Mock) { m.Called() }