Go 語言單元測試

php小編魚仔今天為大家介紹Go語言的單元測試。在軟體開發中，單元測試是非常重要的一環。透過編寫測試案例，我們可以驗證程式碼的正確性，提高程式碼品質和可維護性。 Go語言提供了豐富的測試框架和工具，使得編寫和執行單元測試變得更加簡單和有效率。本文將帶領大家了解Go語言的單元測試，包括測試案例的編寫、運行和覆蓋率的統計。讓我們一起來深入了解Go語言的單元測試吧！

問題內容

執行單元測試時出現主鍵違規 user_id 錯誤

我的togglefavourite功能如下

func ToggleTrackToFavourite(c *gin.Context) {
    userID := GetCurrentUserID(c)
    trackID, err := strconv.Atoi(c.Param("id"))
    if err != nil {
        c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid Track ID"})
        return
    }
    if err := favourites.CreateTable(db.DB); err != nil {
        c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to create table" + err.Error()})
        return
    }
    if isInFavorites(userID, trackID) {
        err = favourites.RemoveFavorite(db.DB, userID, trackID)
        if err != nil {
            c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to remove track from favorites"})
            return
        }

        c.JSON(http.StatusOK, gin.H{"message": "Track removed from favorites"})
    } else {
        err = favourites.InsertFavorite(db.DB, userID, trackID)
        if err != nil {
            c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to add track to favorites : " + err.Error()})
            return
        }

        c.JSON(http.StatusOK, gin.H{"message": "Track added to favorites"})
    }
}

func GetCurrentUserID(c *gin.Context) int {
    userID, exists := c.Get("userID")
    if !exists {
        return 0
    }
    if userIDInt, ok := userID.(int); ok {
        return userIDInt
    }
    return 0
}

上述程式碼的單元測試函數如下

func TestToggleTrackToFavourite(t *testing.T) {
    db.InitTestDB()

    if err := users.CreateTable(db.DB); err != nil {
        t.Fatalf("Failed to create users table: %v", err)
    }
    if err := tracks.CreateTable(db.DB); err != nil {
        t.Fatalf("Failed to create tracks table: %v", err)
    }
    if err := favourites.CreateTable(db.DB); err != nil {
        t.Fatalf("Failed to create favorites table: %v", err)
    }
    user := users.User{
        Username: "Test",
        Email:    "[email protected]",
        Password: "123456",
    }
    if err := users.CreateUser(db.DB, &user); err != nil {
        t.Fatalf("Failed to create user: %v", err)
    }

    sampleTrack := tracks.Track{
        Name:         "Test track",
        Index:        10,
        Track:        "chere.mp4",
        Image:        "image.jpg",
        Album_ID:     4,
        Is_Published: true,
    }
    if err := tracks.CreateTrack(db.DB, &sampleTrack); err != nil {
        t.Fatalf("Failed to insert the example track: %v", err)
    }

    r := gin.Default()
    r.PUT("/user/favorite/toggle/:id", ToggleTrackToFavourite)

    reqAddToFavorites := httptest.NewRequest("PUT", "/user/favorite/toggle/1", nil)
    wAddToFavorites := httptest.NewRecorder()

    r.ServeHTTP(wAddToFavorites, reqAddToFavorites)
    assert.Equal(t, http.StatusOK, wAddToFavorites.Code)
    assert.Equal(t, `{"message":"Track added to favorites"}`, wAddToFavorites.Body.String())

    // reqRemoveFromFavorites := httptest.NewRequest("PUT", "/user/favorite/toggle/1", nil)
    // reqAddToFavorites.Params = append(reqAddToFavorites.Params, httptest.Param{"id", "1"})
    // wRemoveFromFavorites := httptest.NewRecorder()
    // r.ServeHTTP(wRemoveFromFavorites, reqRemoveFromFavorites)
    // assert.Equal(t, http.StatusOK, wRemoveFromFavorites.Code)
    // assert.Equal(t, `{"message":"Track removed from favorites"}`, wRemoveFromFavorites.Body.String())

    if _, err := db.DB.Exec("DROP TABLE IF EXISTS favorite"); err != nil {
        t.Fatalf("Failed to drop the table: %v", err)
    }
    if _, err := db.DB.Exec("DROP TABLE IF EXISTS tracks"); err != nil {
        t.Fatalf("Failed to drop the table: %v", err)
    }
    if _, err := db.DB.Exec("DROP TABLE IF EXISTS users"); err != nil {
        t.Fatalf("Failed to drop the table: %v", err)
    }
}

不知道如何在單元測試中將 GETCURRENTUSER 函數的預設值傳遞為 1

只想從收藏夾中新增/刪除曲目

解決方法

程式碼中的使用者ID 似乎儲存在處理程序之前的某些驗證中間件的上下文局部變數中在名為“userId”的局部變數中，因此設定它足以進行測試，您可以更改這些行：

r := gin.Default()
    c.Set("userID", "1")
    r.PUT("/user/favorite/toggle/:id", ToggleTrackToFavourite)

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