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How to use TestDoAndReturn method of gomock_test Package

Best Mock code snippet using gomock_test.TestDoAndReturn

controller_test.go

Source:controller_test.go

...434		t.Error("Do callback received wrong argument.")435	}436	ctrl.Finish()437}438func TestDoAndReturn(t *testing.T) {439	_, ctrl := createFixtures(t)440	subject := new(Subject)441	doCalled := false442	var argument string443	wantArg := "argument"444	ctrl.RecordCall(subject, "FooMethod", wantArg).DoAndReturn(445		func(arg string) int {446			doCalled = true447			argument = arg448			return 5449		})450	if doCalled {451		t.Error("Do() callback called too early.")452	}...

TestDoAndReturn

Using AI Code Generation

1import (2func TestDoAndReturn(t *testing.T) {3	ctrl := gomock.NewController(t)4	defer ctrl.Finish()5	mock := NewMockDoAndReturn(ctrl)6	mock.EXPECT().DoAndReturn(1, 2).DoAndReturn(func(x, y int) int {7	})8	fmt.Println(mock.DoAndReturn(1, 2))9}10This is a very useful feature of gomock. You can do some setup, call the function and then verify the result. You can also use gomock.Any() in place of 1 and 2. gomock.Any() is a special value which matches any value. So, you can write the above code as:11mock.EXPECT().DoAndReturn(gomock.Any(), gomock.Any()).DoAndReturn(func(x, y int) int {12	})

TestDoAndReturn

Using AI Code Generation

1import (2func TestDoAndReturn(t *testing.T) {3	ctrl := gomock.NewController(t)4	defer ctrl.Finish()5	mock := NewMockMyInterface(ctrl)6	mock.EXPECT().Do().DoAndReturn(func() int {7		fmt.Println("DoAndReturn called")8	})9	fmt.Println(mock.Do())10}11import (12func TestDoAndReturnWithMultipleReturnValues(t *testing.T) {13	ctrl := gomock.NewController(t)14	defer ctrl.Finish()15	mock := NewMockMyInterface(ctrl)16	mock.EXPECT().Do().DoAndReturn(func() (int, error) {17		fmt.Println("DoAndReturn called")18	})19	fmt.Println(mock.Do())20}21import (22func TestDoAndReturnWithArguments(t *testing.T) {23	ctrl := gomock.NewController(t)24	defer ctrl.Finish()

TestDoAndReturn

Using AI Code Generation

1import (2func TestDoAndReturn(t *testing.T) {3    ctrl := gomock.NewController(t)4    defer ctrl.Finish()5    mock := NewMockFoo(ctrl)6    mock.EXPECT().Do().DoAndReturn(func() {7        fmt.Println("Hello")8    })9    mock.Do()10}11import (12func TestDo(t *testing.T) {13    ctrl := gomock.NewController(t)14    defer ctrl.Finish()15    mock := NewMockFoo(ctrl)16    mock.EXPECT().Do().Do(func() {17        fmt.Println("Hello")18    })19    mock.Do()20}21import (22func TestDoAndReturn(t *testing.T) {23    ctrl := gomock.NewController(t)24    defer ctrl.Finish()25    mock := NewMockFoo(ctrl)26    mock.EXPECT().Do().DoAndReturn(func() {27        fmt.Println("Hello")28    })29    mock.Do()30}31import (32func TestDo(t *testing.T) {33    ctrl := gomock.NewController(t)34    defer ctrl.Finish()35    mock := NewMockFoo(ctrl)36    mock.EXPECT().Do().Do(func() {37        fmt.Println("Hello")38    })39    mock.Do()40}

TestDoAndReturn

Using AI Code Generation

1import (2func main() {3	ctrl := gomock.NewController(nil)4	defer ctrl.Finish()5	mock := gomock_test.NewMockDoer(ctrl)6	mock.EXPECT().Do().DoAndReturn(func() string {7		fmt.Println("Do called")8	})9	fmt.Println(mock.Do())10}11import (12func main() {13	ctrl := gomock.NewController(nil)14	defer ctrl.Finish()15	mock := gomock_test.NewMockDoer(ctrl)16	mock.EXPECT().Do().DoAndReturn(func() string {17		fmt.Println("Do called")18	})19	mock.Do()20}21import (22func main() {23	ctrl := gomock.NewController(nil)24	defer ctrl.Finish()25	mock := gomock_test.NewMockDoer(ctrl)26	mock.EXPECT().DoWithArgs("Hello world").DoAndReturn(func(s string) string {27		fmt.Println("DoWithArgs called with ", s)28	})29	fmt.Println(mock.DoWithArgs("Hello world"))30}31import (32func main() {33	ctrl := gomock.NewController(nil)34	defer ctrl.Finish()35	mock := gomock_test.NewMockDoer(ctrl)36	mock.EXPECT().DoWithArgs("Hello world").DoAndReturn(func(s string) string {

TestDoAndReturn

Using AI Code Generation

1func TestDoAndReturn(t *testing.T) {2    ctrl := gomock.NewController(t)3    defer ctrl.Finish()4    mock := NewMockMyInterface(ctrl)5    mock.EXPECT().Do().DoAndReturn(func() string {6    })7    fmt.Println(mock.Do())8}9func TestDoAndReturn(t *testing.T) {10    ctrl := gomock.NewController(t)11    defer ctrl.Finish()12    mock := NewMockMyInterface(ctrl)13    mock.EXPECT().Do().DoAndReturn(func() string {14    })15    fmt.Println(mock.Do())16}

TestDoAndReturn

Using AI Code Generation

1func TestDoAndReturn(t *testing.T) {2    mockCtrl := gomock.NewController(t)3    defer mockCtrl.Finish()4    mock := NewMockMyInterface(mockCtrl)5    mock.EXPECT().DoSomething().DoAndReturn(func() error {6        return errors.New("some error")7    })8    err := mock.DoSomething()9    if err == nil {10        t.Fatal("Expected error, got nil")11    }12}13func TestReturn(t *testing.T) {14    mockCtrl := gomock.NewController(t)15    defer mockCtrl.Finish()16    mock := NewMockMyInterface(mockCtrl)17    mock.EXPECT().DoSomething().Return(errors.New("some error"))18    err := mock.DoSomething()19    if err == nil {20        t.Fatal("Expected error, got nil")21    }22}23func TestDo(t *testing.T) {24    mockCtrl := gomock.NewController(t)25    defer mockCtrl.Finish()26    mock := NewMockMyInterface(mockCtrl)27    mock.EXPECT().DoSomething().Do(func() error {28        return errors.New("some error")29    })30    err := mock.DoSomething()31    if err == nil {32        t.Fatal("Expected error, got nil")33    }34}35func TestDoAndReturn2(t *testing.T) {36    mockCtrl := gomock.NewController(t)37    defer mockCtrl.Finish()38    mock := NewMockMyInterface(mockCtrl)39    mock.EXPECT().DoSomething().DoAndReturn(func() error {40        return errors.New("some error")41    })42    err := mock.DoSomething()43    if err == nil {44        t.Fatal("Expected error, got nil")45    }46}47func TestDoAndReturn3(t *testing.T) {48    mockCtrl := gomock.NewController(t)49    defer mockCtrl.Finish()50    mock := NewMockMyInterface(mockCtrl)51    mock.EXPECT().DoSomething().DoAndReturn(func() error {52        return errors.New("some error")53    })

TestDoAndReturn

Using AI Code Generation

1func TestDoAndReturn(t *testing.T) {2	ctrl := gomock.NewController(t)3	defer ctrl.Finish()4	mock := NewMockMyInterface(ctrl)5	mock.EXPECT().DoSomething().DoAndReturn(func() string {6	})7	fmt.Println(mock.DoSomething())8}9func TestDoAndReturn(t *testing.T) {10	ctrl := gomock.NewController(t)11	defer ctrl.Finish()12	mock := NewMockMyInterface(ctrl)13	mock.EXPECT().DoSomething().DoAndReturn(func() string {14	})15	fmt.Println(mock.DoSomething())16}17func TestDoAndReturn(t *testing.T) {18	ctrl := gomock.NewController(t)19	defer ctrl.Finish()20	mock := NewMockMyInterface(ctrl)21	mock.EXPECT().DoSomething().DoAndReturn(func() string {22	})23	fmt.Println(mock.DoSomething())24}25func TestDoAndReturn(t *testing.T) {26	ctrl := gomock.NewController(t)27	defer ctrl.Finish()28	mock := NewMockMyInterface(ctrl)29	mock.EXPECT().DoSomething().DoAndReturn(func() string {30	})31	fmt.Println(mock.DoSomething())32}33func TestDoAndReturn(t *testing.T) {34	ctrl := gomock.NewController(t)35	defer ctrl.Finish()36	mock := NewMockMyInterface(ctrl)37	mock.EXPECT().DoSomething().DoAndReturn(func() string {38	})39	fmt.Println(mock.DoSomething())40}41func TestDoAndReturn(t *testing.T) {42	ctrl := gomock.NewController(t)43	defer ctrl.Finish()44	mock := NewMockMyInterface(ctrl)45	mock.EXPECT().DoSomething().DoAndReturn(func() string {46	})47	fmt.Println(mock.DoSomething())48}

TestDoAndReturn

Using AI Code Generation

1import (2func main() {3	mockCtrl := gomock.NewController(t)4	defer mockCtrl.Finish()5	mock := test1.NewMocktest(mockCtrl)6	mock.EXPECT().DoAndReturn(gomock.Any()).DoAndReturn(func(i int) int {7	})8	fmt.Println(mock.DoAndReturn(5))9}10import (11func main() {12	mockCtrl := gomock.NewController(t)13	defer mockCtrl.Finish()14	mock := test1.NewMocktest(mockCtrl)15	mock.EXPECT().DoAndReturn(gomock.Any()).DoAndReturn(func(i int) int {16	})17	fmt.Println(mock.DoAndReturn(5))18}19import (20func main() {21	mockCtrl := gomock.NewController(t)22	defer mockCtrl.Finish()23	mock := test1.NewMocktest(mockCtrl)24	mock.EXPECT().DoAndReturn(gomock.Any()).DoAndReturn(func(i int) int {25	})26	fmt.Println(mock.DoAndReturn(5))27}28import (29func main() {30	mockCtrl := gomock.NewController(t)31	defer mockCtrl.Finish()32	mock := test1.NewMocktest(mockCtrl)33	mock.EXPECT().DoAndReturn(gomock.Any()).DoAndReturn(func(i int) int {34	})35	fmt.Println(mock.DoAndReturn(5))36}37import (

TestDoAndReturn

Using AI Code Generation

1func TestDoAndReturn(t *testing.T) {2    mockCtrl := gomock.NewController(t)3    defer mockCtrl.Finish()4    mockObj := mock_gomock.NewMockInterface(mockCtrl)5    mockObj.EXPECT().Do().DoAndReturn(func() error {6        return errors.New("some error")7    })8    err := mockObj.Do()9    if err == nil {10        t.Fail()11    }12}13func TestReturn(t *testing.T) {14    mockCtrl := gomock.NewController(t)15    defer mockCtrl.Finish()16    mockObj := mock_gomock.NewMockInterface(mockCtrl)17    mockObj.EXPECT().Do().Return(errors.New("some error"))18    err := mockObj.Do()19    if err == nil {20        t.Fail()21    }22}23func TestReturn(t *testing.T) {24    mockCtrl := gomock.NewController(t)25    defer mockCtrl.Finish()26    mockObj := mock_gomock.NewMockInterface(mockCtrl)27    mockObj.EXPECT().Do().Return(nil)28    err := mockObj.Do()29    if err != nil {30        t.Fail()31    }32}33func TestDoAndReturn(t *testing.T) {34    mockCtrl := gomock.NewController(t)35    defer mockCtrl.Finish()36    mockObj := mock_gomock.NewMockInterface(mockCtrl)37    mockObj.EXPECT().Do().DoAndReturn(func() error {38    })39    err := mockObj.Do()40    if err != nil {41        t.Fail()42    }43}44func TestDoAndReturn(t *testing.T)

TestDoAndReturn

Using AI Code Generation

1import (2func TestDoAndReturn(t *testing.T) {3	ctrl := gomock.NewController(t)4	defer ctrl.Finish()5	mock := mock_gomock.NewMockDemo(ctrl)6	mock.EXPECT().Do("hello").Return("hello world")7	fmt.Println(mock.Do("hello"))8}9--- PASS: TestDoAndReturn (0.00s)10import (11func TestDoAndReturnWithMultipleReturnValues(t *testing.T) {12	ctrl := gomock.NewController(t)13	defer ctrl.Finish()14	mock := mock_gomock.NewMockDemo(ctrl)15	mock.EXPECT().Do("hello").Return("hello world", nil)16	fmt.Println(mock.Do("hello"))17}18--- PASS: TestDoAndReturnWithMultipleReturnValues (0.00s)

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