NUnit - 尝试创建通用测试，但找不到测试用例源

Question

我决定让我的功能测试变得通用，这样我就可以将类的不同实现传递给它，但保持测试相同。

这里是常用的测试类：

internal abstract class PictureHandlingTestsBase : IlgTestBase
{
    protected PictureHandlingTestsBase(GallerySettingsBase defaultGalSettings, GallerySettingsBase altGalSettings)
    {
        DefaultGallerySettings = defaultGalSettings;
        AltGallerySettings = altGalSettings;

        // ...
    }

    [TestCaseSource(nameof(AllGallerySettings))]
    public async Task ChangeFriendlyUrlForGalleryWithPics(IlgUniGallerySettingsBase gallerySettings)
    {
      // ...
    }

    // ...

    protected static object[]? AllGallerySettings { get; private set; }

    protected static GallerySettingsBase? AltGallerySettings { get; private set; }

    protected static GallerySettingsBase? DefaultGallerySettings { get; private set; }

}

然后我对文件系统进行了这些测试的实现：

internal class FilesystemPictureHandlingTests : PictureHandlingTestsBase
{
    public FilesystemPictureHandlingTests() : base(
        new FilesystemGallerySettings(...), new FilesystemGallerySettings(...)) { }

    [SetUp]
    public void SetUp()
    {
      // ...
    }
}

对于 Azure Blob 存储：

internal class AzurePictureHandlingTests : PictureHandlingTestsBase
{
    public AzurePictureHandlingTests() : base(
        new AzureGallerySettings(...), new AzureGallerySettings(...)) { }

    [SetUp]
    public void SetUp()
    {
      // ...
    }
}

但是当我运行测试时我得到：

System.Exception：找不到测试用例源。

这实际上是什么意思？

Answer 1

由于我没有更好的解决方案，这就是我现在所做的：

internal abstract class PictureHandlingTestsBase : IlgTestBase
{
    protected PictureHandlingTestsBase(GallerySettingsBase defaultGalSettings, GallerySettingsBase altGalSettings)
    {
        defaultGalSettings.Should().NotBeNull();
        altGalSettings.Should().NotBeNull();

        DefaultGallerySettings = defaultGalSettings;
        AltGallerySettings = altGalSettings;

        AllGallerySettings = new object[] { DefaultGallerySettings, AltGallerySettings };
    }

    [Test]
    public async Task ChangeFriendlyUrlForGalleryWithPics()
    {
        await ActualTest(DefaultGallerySettings!);

        SetUp(); // running it manually before simulating another run

        await ActualTest(AltGallerySettings!);
        return;

        async Task ActualTest(GallerySettingsBase gallerySettings)
        {
          // ... the test logic
        }
    }

    // This must exist here as I have to run it manually
    public abstract void SetUp();
}

首先，我必须创建自己的抽象

SetUp()

方法，因为在从默认设置更改为替代设置之前我必须手动运行它。然后这是我的派生类：

internal class FilesystemPictureHandlingTests : PictureHandlingTestsBase
{
    public FilesystemPictureHandlingTests() : base(new FilesystemGallerySettings(...), new FilesystemGallerySettings(...)) { }

    [SetUp]
    public override void SetUp()
    {
      // ...
    }
}