Use TestContext with a MethodDataSource

[chucker]

The NUnit migration docs say:

TestContext Injection: Instead of a static TestContext, TUnit injects it as a parameter where needed.

But suppose I have a test method like:

    [Test]
    [MethodDataSource(nameof(TestData))]
    public async Task TestAThing(
        string xaml,
        int expectedStartTags,
        int expectedEndTags,
        int expectedTagNames)

…and now I add TestContext as an argument:

    [Test]
    [MethodDataSource(nameof(TestData))] // error TUnit0001 here
    public async Task TestAThing(
        TestContext testContext,
        string xaml,
        int expectedStartTags,
        int expectedEndTags,
        int expectedTagNames)

…then I get an error:

2>MyTests.cs(42,6): Error TUnit0001 : Attribute argument types 'string, int, int, int' don't match method parameter types 'TestContext, string, int, int, int'

If I move the TestContext to be injected on the test class, that doesn't work either:

1>MyTests.cs(8,14): Error TUnit0038 : No data source provided

(Presumably, this cannot work because the test context needs information on the current test.)

So, I'm unsure how to get a TestContext instance within a parameterized test using MethodDataSource. Maybe this is merely a bug in the analyzer?

[thomhurst]

I'll tweak the docs. It can be injected into Before(Test) and After(Test) hooks.

To get it inside a test, do TestContext.Current

[ddotlic]

Maybe this is merely a bug in the analyzer?

I am getting TUnit0038: No data source provided for all MethodDataSource annotated tests, despite the fact that I don't use TestContext directly and the tests run just fine. This is in latest Rider on a latest macOS, if it makes any difference.

[ddotlic]

Seems this was temporary, upgrading to latest and restarting Rider shows no more errors. Sorry for the noise.