Good naming scheme for test derived artifacts (screenshots)

[Bananeweizen]

I was working on an extension that takes screenshots of failed tests. Right now the naming scheme of the screenshot files is roughly this: context.getRequiredTestClass().getName() + "_" + context.getRequiredTestMethod().getName() +someExtension

However, given there might be parameterized tests, dynamic tests etc. this is probably not sufficient in some cases. I guess that others had to solve the "create a name for an artifact that can traced back to the test that created it" problem before me, so I'm wondering if someone can recommend a better naming scheme?