How to skip empty tests instead of fail if data source is empty

[TheRumle]

I have an abstract test class defining a bunch of tests. In my case, my test class takes in an IServiceCollection and some descriptors to match these. I have methods that define test data for all three lifetimes transient, singleton, scoped and test for each of these categories:

public abstract class ServiceInjectionTest(
    IServiceCollection collection,
    IEnumerable<IPartialServiceMatcher> allMatchers){...}

    public IEnumerable<ServiceDescriptor> TransientServices() =>
        GetMatchingDescriptors(MatchersWithLifetime(ServiceLifetime.Transient));

    [Test]
    [DisplayName("The service '$descriptor ServiceType' can be provided as transient.")]
    [InstanceMethodDataSource(nameof(TransientServices))]
    public async Task ServiceCanBeCreatedAsTransient(ServiceDescriptor descriptor) =>
        await AssertServiceCanBeCreated(descriptor);

However, I have a test class where there exists no transient services - so I get a TUnit error on runtime:

...
 at TUnit.Core.ExecutableTest.InvokeTestAsync(Object instance, CancellationToken cancellationToken)
   at TUnit.Engine.TestExecutor.ExecuteTestAsync(AbstractExecutableTest executableTest, CancellationToken cancellationToken)
   at TUnit.Engine.Helpers.TimeoutHelper.ExecuteWithTimeoutAsync(Func`2 taskFactory, Nullable`1 timeout, CancellationToken cancellationToken, String timeoutMessage)
   at TUnit.Engine.TestExecutor.ExecuteAsync(AbstractExecutableTest executableTest, CancellationToken cancellationToken)
   at TUnit.Engine.TestExecutor.ExecuteAsync(AbstractExecutableTest executableTest, CancellationToken cancellationToken)
   at TUnit.Engine.TestExecutor.ExecuteAsync(AbstractExecutableTest executableTest, CancellationToken cancellationToken)
   at TUnit.Engine.Services.TestExecution.TestCoordinator.<>c__DisplayClass11_0.<<ExecuteTestInternalAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at TUnit.Engine.Services.TestExecution.TestCoordinator.<>c__DisplayClass11_0.<<ExecuteTestInternalAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at TUnit.Engine.Services.TestExecution.RetryHelper.ExecuteWithRetry(TestContext testContext, Func`1 action)
   at TUnit.Engine.Services.TestExecution.RetryHelper.ExecuteWithRetry(TestContext testContext, Func`1 action)
   at TUnit.Engine.Services.TestExecution.TestCoordinator.ExecuteTestInternalAsync(AbstractExecutableTest test, CancellationToken cancellationToken)

Is there a way to create a custom annotation ala SkipIfEmptyInstanceMethodDataSource?

[thomhurst]

#3520

[TheRumle]

This guy is miles ahead of me. The docs cant keep up.