go-study/gomock/demo_test.go
2024-05-29 11:02:08 +08:00

60 lines
1.0 KiB
Go

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)
})
}
}