如何在Golang中测试JSON API 使用jsonassert验证复杂数据结构

ja := jsonassert.New(t)
responseBody := `[{"name": "Alice", "age": 30}, {"name": "Bob", "age": 25}]`
expected := `<<UNORDERED>>[{"name": "Bob", "age": 25}, {"name": "Alice", "age": 30}]`
ja.Assertf(responseBody, expected)

ja := jsonassert.New(t)
responseBody := `{"user": {"name": "Alice", "address": {"city": "New York"}}}`
expected := `{"user": {"name": "Alice", "address": {"city": "New York"}}}`
ja.Assertf(responseBody, expected)

client := &http.Client{}
req, err := http.NewRequest("GET", "/api/users", nil)
if err != nil {
    t.Fatalf("创建请求失败: %v", err)
}

resp, err := client.Do(req)
if err != nil {
    t.Fatalf("发送请求失败: %v", err)
}
defer resp.Body.Close()

body, err := ioutil.ReadAll(resp.Body)
if err != nil {
    t.Fatalf("读取响应体失败: %v", err)
}

req, err := http.NewRequest("GET", "/api/users", nil)
if err != nil {
    t.Fatalf("创建请求失败: %v", err)
}
req.Header.Set("Authorization", "Bearer <your_token>")

resp, err := client.Do(req)
if err != nil {
    t.Fatalf("发送请求失败: %v", err)
}
defer resp.Body.Close()

if resp.StatusCode != http.StatusOK {
    t.Fatalf("API 返回错误码: %d", resp.StatusCode)
}

type testCase struct {
    name     string
    input    string
    expected string
}

testCases := []testCase{
    {
        name:     "Valid JSON",
        input:    `{"name": "Alice", "age": 30}`,
        expected: `{"name": "Alice", "age": 30}`,
    },
    {
        name:     "Invalid JSON",
        input:    `{"name": "Alice", "age": "30"}`,
        expected: `{"name": "Alice", "age": "<<NUMBER>>"}`,
    },
}

for _, tc := range testCases {
    t.Run(tc.name, func(t *testing.T) {
        ja := jsonassert.New(t)
        ja.Assertf(tc.input, tc.expected)
    })
}

//go:generate mockgen -destination=mocks/mock_db.go -package=mocks . Database

type Database interface {
    GetUser(id int) (User, error)
}

func GetUserHandler(db Database, id int) (User, error) {
    return db.GetUser(id)
}

ctrl := gomock.NewController(t)
defer ctrl.Finish()

mockDB := mocks.NewMockDatabase(ctrl)
mockDB.EXPECT().GetUser(1).Return(User{ID: 1, Name: "Alice"}, nil)

user, err := GetUserHandler(mockDB, 1)
if err != nil {
    t.Fatalf("GetUserHandler failed: %v", err)
}

assert.Equal(t, "Alice", user.Name)