如何对 multipart.Form 进行单元测试

Question

Abner Matheus

Asked: 2024-11-29 09:28:22 +0800 CST2024-11-29 09:28:22 +0800 CST 2024-11-29 09:28:22 +0800 CST

在 golang 中使用 testfy 进行模拟时出现奇怪的错误

772

我有以下方法：

func (u *UserService) Create(createUserDto *CreateUserDto) (*User, error) {
    userExists, err := u.userRepository.FetchByEmail(createUserDto.Email)
    if err != nil {
        return nil, err
    }

    if userExists != nil {
        return nil, &HTTPError{
            Code:    409,
            Message: "Email already exists",
        }
    }

    passwordHash, err := bcrypt.GenerateFromPassword([]byte(createUserDto.Password), bcrypt.DefaultCost)
    if err != nil {
        return nil, err
    }

    activationCode := uuid.New().String()
    activationCodeExpires := time.Now().Add(30 * time.Minute)

    user := &User{
        Name:                  createUserDto.Name,
        Email:                 createUserDto.Email,
        Password:              string(passwordHash),
        Phone:                 createUserDto.Phone,
        Photo:                 createUserDto.Photo,
        IsActive:              false,
        ActivationCode:        &activationCode,
        ActivationCodeExpires: &activationCodeExpires,
    }

    return u.userRepository.Save(user)
}

我有以下测试：

t.Run("Should return a new user", func(t *testing.T) {
    createUserDtoMock := &CreateUserDto{
        Name:     "John Doe",
        Email:    "[email protected]",
        Password: "password",
        Phone:    nil,
        Photo:    nil,
    }

    var idMock *int64 = new(int64)
    *idMock = 1
    userResponseMock := &User{
        Id:       idMock,
        Name:     "John Doe",
        Email:    "[email protected]",
        Password: "$2a$10$MmWsAi5AJHnWaUG5vvcl7OUpar9kIhzOMbwp1WBB0dZoFeYYebfKC",
        Phone:    nil,
        Photo:    nil,
    }

    userInputMock := &User{
        Id:       nil,
        Name:     "John Doe",
        Email:    "[email protected]",
        Password: "password",
        Phone:    nil,
        Photo:    nil,
    }

    repository := &UserRepositoryMock{}
    service := NewUserService(repository)

    repository.On("FetchByEmail", createUserDtoMock.Email).Return((*User)(nil), nil)
    repository.On("Save", userInputMock).Return(userResponseMock, nil)

    user, err := service.Create(createUserDtoMock)

    assert.NoError(t, err)
    assert.IsType(t, &User{}, user)
    assert.Equal(t, *userResponseMock, *user)

    repository.AssertExpectations(t)
})

然而，当我运行它时，我收到了一个我根本无法理解的错误：

Running tool: /snap/go/current/bin/go test -timeout 30s -run ^TestUserService$/^Should_return_a_new_user$ github.com/theabner/pallet/internal/core/service

--- FAIL: TestUserService (0.09s)
    --- FAIL: TestUserService/Should_return_a_new_user (0.09s)
panic: 
    
    mock: Unexpected Method Call
    -----------------------------
    
    Save(*entity.User)
            0: &entity.User{Id:(*int64)(nil), Name:"John Doe", Email:"[email protected]", Password:"$2a$10$3Z7PAQ0F01Xwb/wAzEsQVuEC1O8adELBCUqeMPnxCYEbZ1mSJDk4S", Phone:(*string)(nil), Photo:(*string)(nil), IsActive:false, ActivationCode:(*string)(0xc000114b40), ActivationCodeExpires:time.Date(2024, time.November, 28, 22, 55, 20, 331423224, time.Local), ResetPasswordToken:(*string)(nil), ResetPasswordTokenExpires:<nil>, CreatedAt:<nil>, UpdatedAt:<nil>}
    
    The closest call I have is: 
    
    Save(*entity.User)
            0: &entity.User{Id:(*int64)(nil), Name:"John Doe", Email:"[email protected]", Password:"password", Phone:(*string)(nil), Photo:(*string)(nil), IsActive:false, ActivationCode:(*string)(nil), ActivationCodeExpires:<nil>, ResetPasswordToken:(*string)(nil), ResetPasswordTokenExpires:<nil>, CreatedAt:<nil>, UpdatedAt:<nil>}
    
    Difference found in argument 0:
    
    --- Expected
    +++ Actual
    @@ -4,3 +4,3 @@
      Email: (string) (len=17) "[email protected]",
    - Password: (string) (len=8) "password",
    + Password: (string) (len=60) "$2a$10$3Z7PAQ0F01Xwb/wAzEsQVuEC1O8adELBCUqeMPnxCYEbZ1mSJDk4S",
      Phone: (*string)(<nil>),
    @@ -8,4 +8,4 @@
      IsActive: (bool) false,
    - ActivationCode: (*string)(<nil>),
    - ActivationCodeExpires: (*time.Time)(<nil>),
    + ActivationCode: (*string)((len=36) "d33db295-c9c8-411b-a6fc-3818510adc59"),
    + ActivationCodeExpires: (*time.Time)(2024-11-28 22:55:20.331423224 -0300 -03 m=+1800.089611904),
      ResetPasswordToken: (*string)(<nil>),
    
    Diff: 0: FAIL:  (*entity.User=&{<nil> John Doe [email protected] $2a$10$3Z7PAQ0F01Xwb/wAzEsQVuEC1O8adELBCUqeMPnxCYEbZ1mSJDk4S <nil> <nil> false 0xc000114b40 2024-11-28 22:55:20.331423224 -0300 -03 m=+1800.089611904 <nil> <nil> <nil> <nil>}) != (*entity.User=&{<nil> John Doe [email protected] password <nil> <nil> false <nil> <nil> <nil> <nil> <nil> <nil>})
    at: [/home/theabnermatheus/Workspace/personal_projects/pallet/internal/shared/mocks/repository/user_repository_mock.go:13 /home/theabnermatheus/Workspace/personal_projects/pallet/internal/core/service/user_service.go:55 /home/theabnermatheus/Workspace/personal_projects/pallet/internal/core/service/user_service_test.go:105]
     [recovered]
    panic: 
    
    mock: Unexpected Method Call
    -----------------------------
    
    Save(*entity.User)
            0: &entity.User{Id:(*int64)(nil), Name:"John Doe", Email:"[email protected]", Password:"$2a$10$3Z7PAQ0F01Xwb/wAzEsQVuEC1O8adELBCUqeMPnxCYEbZ1mSJDk4S", Phone:(*string)(nil), Photo:(*string)(nil), IsActive:false, ActivationCode:(*string)(0xc000114b40), ActivationCodeExpires:time.Date(2024, time.November, 28, 22, 55, 20, 331423224, time.Local), ResetPasswordToken:(*string)(nil), ResetPasswordTokenExpires:<nil>, CreatedAt:<nil>, UpdatedAt:<nil>}
    
    The closest call I have is: 
    
    Save(*entity.User)
            0: &entity.User{Id:(*int64)(nil), Name:"John Doe", Email:"[email protected]", Password:"password", Phone:(*string)(nil), Photo:(*string)(nil), IsActive:false, ActivationCode:(*string)(nil), ActivationCodeExpires:<nil>, ResetPasswordToken:(*string)(nil), ResetPasswordTokenExpires:<nil>, CreatedAt:<nil>, UpdatedAt:<nil>}
    
    Difference found in argument 0:
    
    --- Expected
    +++ Actual
    @@ -4,3 +4,3 @@
      Email: (string) (len=17) "[email protected]",
    - Password: (string) (len=8) "password",
    + Password: (string) (len=60) "$2a$10$3Z7PAQ0F01Xwb/wAzEsQVuEC1O8adELBCUqeMPnxCYEbZ1mSJDk4S",
      Phone: (*string)(<nil>),
    @@ -8,4 +8,4 @@
      IsActive: (bool) false,
    - ActivationCode: (*string)(<nil>),
    - ActivationCodeExpires: (*time.Time)(<nil>),
    + ActivationCode: (*string)((len=36) "d33db295-c9c8-411b-a6fc-3818510adc59"),
    + ActivationCodeExpires: (*time.Time)(2024-11-28 22:55:20.331423224 -0300 -03 m=+1800.089611904),
      ResetPasswordToken: (*string)(<nil>),
    
    Diff: 0: FAIL:  (*entity.User=&{<nil> John Doe [email protected] $2a$10$3Z7PAQ0F01Xwb/wAzEsQVuEC1O8adELBCUqeMPnxCYEbZ1mSJDk4S <nil> <nil> false 0xc000114b40 2024-11-28 22:55:20.331423224 -0300 -03 m=+1800.089611904 <nil> <nil> <nil> <nil>}) != (*entity.User=&{<nil> John Doe [email protected] password <nil> <nil> false <nil> <nil> <nil> <nil> <nil> <nil>})
    at: [/home/theabnermatheus/Workspace/personal_projects/pallet/internal/shared/mocks/repository/user_repository_mock.go:13 /home/theabnermatheus/Workspace/personal_projects/pallet/internal/core/service/user_service.go:55 /home/theabnermatheus/Workspace/personal_projects/pallet/internal/core/service/user_service_test.go:105]
    

goroutine 23 [running]:
testing.tRunner.func1.2({0x616fe0, 0xc000115060})
    /snap/go/10743/src/testing/testing.go:1632 +0x230
testing.tRunner.func1()
    /snap/go/10743/src/testing/testing.go:1635 +0x35e
panic({0x616fe0?, 0xc000115060?})
    /snap/go/10743/src/runtime/panic.go:785 +0x132
github.com/stretchr/testify/mock.(*Mock).fail(0xc0001389b0, {0x675778?, 0x4?}, {0xc000138a00?, 0x1?, 0x1?})
    /home/theabnermatheus/go/pkg/mod/github.com/stretchr/[email protected]/mock/mock.go:349 +0x12d
github.com/stretchr/testify/mock.(*Mock).MethodCalled(0xc0001389b0, {0x714c61, 0x4}, {0xc000114b50, 0x1, 0x1})
    /home/theabnermatheus/go/pkg/mod/github.com/stretchr/[email protected]/mock/mock.go:509 +0x5d7
github.com/stretchr/testify/mock.(*Mock).Called(0xc0001389b0, {0xc000114b50, 0x1, 0x1})
    /home/theabnermatheus/go/pkg/mod/github.com/stretchr/[email protected]/mock/mock.go:481 +0x125
github.com/theabner/pallet/internal/shared/mocks/repository.(*UserRepositoryMock).Save(0xc0001389b0, 0xc00017cd80)
    /home/theabnermatheus/Workspace/personal_projects/pallet/internal/shared/mocks/repository/user_repository_mock.go:13 +0x7d
github.com/theabner/pallet/internal/core/service.(*UserService).Create(0xc0001a3f10, 0xc0001a3f20)
    /home/theabnermatheus/Workspace/personal_projects/pallet/internal/core/service/user_service.go:55 +0x2e2
github.com/theabner/pallet/internal/core/service.TestUserService.func5(0xc000174d00)
    /home/theabnermatheus/Workspace/personal_projects/pallet/internal/core/service/user_service_test.go:105 +0x325
testing.tRunner(0xc000174d00, 0x693bc0)
    /snap/go/10743/src/testing/testing.go:1690 +0xf4
created by testing.(*T).Run in goroutine 22
    /snap/go/10743/src/testing/testing.go:1743 +0x390
FAIL    github.com/theabner/pallet/internal/core/service    0.099s
FAIL

帮帮我，我已经尽力了。

这段代码需要做的就是检查是否已经有使用注册邮箱的用户，如果没有，就对密码进行哈希处理，创建一个带有到期时间的激活哈希，然后将其发送到作为接口的存储库。

1 个回答

Voted

eik · Answer 1 · 2024-11-29T21:27:03+08:00

您告诉testify期望对您的Save函数进行特定的调用。

让我用一个简单的例子来证明这一点：

type Adder interface {
    Add(x, y int) int
}

type MyAdder struct{ adder Adder }

func (m MyAdder) Add(x, y int) int {
    return m.adder.Add(x, y)
}

我们有一个Adder接口和一个MyAdder仅委托给一个的Adder。

当我们像这样“测试”它时：

func TestMyAdder_Add(t *testing.T) {
    type args struct {
        x, y int
    }
    tests := []struct {
        name string
        args args
        want int
    }{
        {"zero", args{0, 0}, 0},
        {"onetwothree", args{1, 2}, 3},
        // {"twoonethree", args{2, 1}, 3},
    }

    mock := NewMockAdder(t)
    mock.On("Add", 0, 0).Return(0)
    mock.On("Add", 1, 2).Return(3)

    m := MyAdder{mock}
    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            if got := m.Add(tt.args.x, tt.args.y); got != tt.want {
                t.Errorf("MyAdder.Add() = %v, want %v", got, tt.want)
            }
        })
    }
}

一切都很好，尽管这个测试的价值值得商榷。我们断言测试将调用嵌入式加法器两次，一次使用 0，0，一次使用 1，2。

当我们通过取消注释上面的行来添加 2、1 时，{"twoonethree", args{2, 1}, 3},我们收到一个错误：

--- FAIL: TestMyAdder_Add (0.00s)
    mock.go:351: 
        
        mock: Unexpected Method Call
        -----------------------------
        
        Add(int,int)
                0: 2
                1: 1
        
        The closest call I have is: 
        
        Add(int,int)
                0: 0
                1: 0
        
        
        Diff: 0: FAIL:  (int=2) != (int=0)
            1: FAIL:  (int=1) != (int=0)
        at: [.../mock_Adder.go:14 .../adder.go:12 .../adder_test.go:26]
    --- FAIL: TestMyAdder_Add/twoonethree (0.00s)

因为模拟只能响应两个指定的输入。

由于计算非确定性参数passwordHash、activationCode和activationCodeExpires，因此不能使用固定参数集。可行的方法是

        repository.On("Save", mock.IsType(&User{})).Return(
            func(user *User) (*User, error) {
                user.Id = new(int64)
                return user, nil
            })

但答复显然也是不确定的，所以你的断言不起作用。

另外，顺便提一下，您不需要断言用户类型assert.IsType(t, &User{}, user)。

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在 golang 中使用 testfy 进行模拟时出现奇怪的错误

1 个回答

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