我想做單元測(cè)試并檢查日期是否是閏年，在這種情況下我如何應(yīng)用單元測(cè)試，我不知道在這種情況下該怎么做？我已經(jīng)創(chuàng)建了我的函數(shù)并且工作正常，我還有一個(gè) JSON 文件，其中包含人員列表及其生日日期！希望能提供一些有關(guān)如何解決此問(wèn)題的反饋或建議！謝謝BD.go： package mainimport (    "encoding/json"    "fmt"    "io/ioutil"    "log"    "os"    "time")// Users struct which contains// an array of userstype Users struct {    Users []User `json:"users"`}// User struct which contains a name// a type and a list of social linkstype User struct {    Firstname  string `json:"fname"`    Secondname string `json:"lname"`    Date       string `json:"date"`}var users Usersvar user Userfunc Birthday() {    // Open our jsonFile    jsonFile, err := os.Open("users.json")    // if we os.Open returns an error then handle it    if err != nil {        fmt.Println(err)    }    fmt.Println("Successfully Opened users.json")    // defer the closing of our jsonFile so that we can parse it later on    defer jsonFile.Close()    // read our opened xmlFile as a byte array.    byteValue, _ := ioutil.ReadAll(jsonFile)    // we initialize our Users array    // we unmarshal our byteArray which contains our    // jsonFile's content into 'users' which we defined above    json.Unmarshal(byteValue, &users)    IsLeapYear("users.json")}func IsLeapYear(user string) bool {    // we iterate through every user within our users array and    // print out the user Type, their name    for i := 0; i < len(users.Users); i++ {        date, err := time.Parse("2006/01/02", users.Users[i].Date)        if err != nil {            date, err = time.Parse("2006-01-02", users.Users[i].Date)            // date, err = time.Parse("2006 01 02", users.Users[i].Date)            if err != nil {                log.Fatal("unsupported date format:", err)            }        }