Testing multiple implementations of an interface in a single test class

Question

I need to pass test data on class level but Theory and InlineData attributes can only be used on methods.

public class ContainerTests : TestFixture
{
    private IContainer _container;

    public ContainerTests(string containerName)
    {
        _container = CreateContainer(containerName);
    }

    [Fact]
    public void ResolveJobFactory()
    {
        IJobFactory jobFactory = _container.Resolve<IJobFactory>();
    }

    private IContainer CreateContainer(string containerName)
    {
        if (containerName == "CastleWindsor")
        {
            return new WindsorContainerAdapter();
        }
        //other adapters

        throw new NotImplementedException();
    }
}

Is there a way to achieve something similar in xUnit.net?

Answer 1

Testing multiple implementations of an interface in a single test class

Don't! Have a test class per implementation.

Edit: As per comments, I recommend having a base TestClass with all of the common tests, and then a Test Class per implementation which inherits from this base class.