调整断言库依赖及增加gomock示例

go.mod

@@ -3,8 +3,15 @@ module go-study
 go 1.20
 
 require (
-	github.com/brildum/testify v0.0.0-20151105045740-d05693e2e501 // indirect
+	github.com/marusama/cyclicbarrier v1.1.0
-	github.com/marusama/cyclicbarrier v1.1.0 // indirect
+	github.com/stretchr/testify v1.9.0
-	golang.org/x/exp v0.0.0-20240119083558-1b970713d09a // indirect
+	golang.org/x/exp v0.0.0-20240119083558-1b970713d09a
-	golang.org/x/sync v0.5.0 // indirect
+	golang.org/x/sync v0.5.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	go.uber.org/mock v0.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

gomock/demo.go

@@ -0,0 +1,11 @@
+package gomock
+
+func GetUserName(us UserService, id int) (string, error) {
+	// 使用依赖注入进来的具体结构体方法，通常为需要mock的方法
+	user, err := us.GetUser(id)
+	if err != nil {
+		return "", err
+	}
+
+	return user.Name, nil
+}

gomock/demo_test.go

@@ -0,0 +1,59 @@
+package gomock
+
+import (
+	"errors"
+	"github.com/stretchr/testify/assert"
+	"testing"
+
+	"go.uber.org/mock/gomock"
+)
+
+func TestGetUserName(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	mockUserService := NewMockUserService(ctrl)
+
+	// 定义测试用例
+	testCases := []struct {
+		name      string
+		userID    int
+		mockSetup func()
+		expected  string
+		err       error
+	}{
+		{
+			name:   "valid user",
+			userID: 1,
+			mockSetup: func() {
+				mockUserService.EXPECT().
+					GetUser(1).
+					Return(&User{ID: 1, Name: "Alice"}, nil)
+			},
+			expected: "Alice",
+			err:      nil,
+		},
+		{
+			name:   "user not found",
+			userID: 2,
+			mockSetup: func() {
+				mockUserService.EXPECT().
+					GetUser(2).
+					Return(nil, errors.New("user not found"))
+			},
+			expected: "",
+			err:      errors.New("user not found"),
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			tc.mockSetup()
+
+			result, err := GetUserName(mockUserService, tc.userID)
+
+			assert.Equal(t, tc.expected, result)
+			assert.Equal(t, tc.err, err)
+		})
+	}
+}

gomock/mock_user.go

@@ -0,0 +1,54 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: gomock/user.go
+//
+// Generated by this command:
+//
+//	mockgen -source=gomock/user.go -destination=gomock/mock_user.go -package=gomock
+//
+
+// Package gomock is a generated GoMock package.
+package gomock
+
+import (
+	reflect "reflect"
+
+	gomock "go.uber.org/mock/gomock"
+)
+
+// MockUserService is a mock of UserService interface.
+type MockUserService struct {
+	ctrl     *gomock.Controller
+	recorder *MockUserServiceMockRecorder
+}
+
+// MockUserServiceMockRecorder is the mock recorder for MockUserService.
+type MockUserServiceMockRecorder struct {
+	mock *MockUserService
+}
+
+// NewMockUserService creates a new mock instance.
+func NewMockUserService(ctrl *gomock.Controller) *MockUserService {
+	mock := &MockUserService{ctrl: ctrl}
+	mock.recorder = &MockUserServiceMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockUserService) EXPECT() *MockUserServiceMockRecorder {
+	return m.recorder
+}
+
+// GetUser mocks base method.
+func (m *MockUserService) GetUser(id int) (*User, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetUser", id)
+	ret0, _ := ret[0].(*User)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// GetUser indicates an expected call of GetUser.
+func (mr *MockUserServiceMockRecorder) GetUser(id any) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetUser", reflect.TypeOf((*MockUserService)(nil).GetUser), id)
+}

gomock/user.go

@@ -0,0 +1,10 @@
+package gomock
+
+type User struct {
+	ID   int
+	Name string
+}
+
+type UserService interface {
+	GetUser(id int) (*User, error)
+}

routine/pool_test.go

@@ -7,7 +7,7 @@ import (
 	"sync/atomic"
 	"testing"
 
-	"github.com/brildum/testify/assert"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestPool(t *testing.T) {