dotnet-testing-advanced-tunit-advanced

TUnit 進階應用：資料驅動測試、依賴注入與整合測試實戰

資料驅動測試進階技巧

TUnit 提供 MethodDataSource、ClassDataSource、Matrix Tests 三種進階資料來源。MethodDataSource 最靈活，支援動態產生與外部檔案載入；ClassDataSource 適合跨測試類別共享資料與 AutoFixture 整合；Matrix Tests 自動產生所有參數組合（注意控制數量避免爆炸性增長）。

完整範例與比較表請參閱 references/data-driven-testing.md

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Properties 屬性標記與測試過濾

基本 Properties 使用

[Test]
[Property("Category", "Database")]
[Property("Priority", "High")]
public async Task DatabaseTest_高優先級_應能透過屬性過濾()
{
    await Assert.That(true).IsTrue();
}

[Test]
[Property("Category", "Unit")]
[Property("Priority", "Medium")]
public async Task UnitTest_中等優先級_基本驗證()
{
    await Assert.That(1 + 1).IsEqualTo(2);
}

[Test]
[Property("Category", "Integration")]
[Property("Priority", "Low")]
[Property("Environment", "Development")]
public async Task IntegrationTest_低優先級_僅開發環境執行()
{
    await Assert.That("Hello World").Contains("World");
}

建立一致的屬性命名規範

public static class TestProperties
{
    // 測試類別
    public const string CATEGORY_UNIT = "Unit";
    public const string CATEGORY_INTEGRATION = "Integration";
    public const string CATEGORY_E2E = "E2E";

    // 優先級
    public const string PRIORITY_CRITICAL = "Critical";
    public const string PRIORITY_HIGH = "High";
    public const string PRIORITY_MEDIUM = "Medium";
    public const string PRIORITY_LOW = "Low";

    // 環境
    public const string ENV_DEVELOPMENT = "Development";
    public const string ENV_STAGING = "Staging";
    public const string ENV_PRODUCTION = "Production";
}

[Test]
[Property("Category", TestProperties.CATEGORY_UNIT)]
[Property("Priority", TestProperties.PRIORITY_HIGH)]
public async Task ExampleTest_使用常數_確保一致性()
{
    await Assert.That(1 + 1).IsEqualTo(2);
}

TUnit 測試過濾執行

TUnit 使用 dotnet run 而不是 dotnet test：

# 只執行單元測試
dotnet run --treenode-filter "/*/*/*/*[Category=Unit]"

# 只執行高優先級測試
dotnet run --treenode-filter "/*/*/*/*[Priority=High]"

# 組合條件：執行高優先級的單元測試
dotnet run --treenode-filter "/*/*/*/*[(Category=Unit)&(Priority=High)]"

# 或條件：執行單元測試或冒煙測試
dotnet run --treenode-filter "/*/*/*/*[(Category=Unit)|(Suite=Smoke)]"

# 執行特定功能的測試
dotnet run --treenode-filter "/*/*/*/*[Feature=OrderProcessing]"