Provide information about the current test case in `setUp()`

When I have leftovers after running tests I want to know which test case wasn't cleaned up properly.
I start a docker container for each test in `setUp()` and if I knew the name of the current test I could assign the name of the current test to the container for later identification.

related to #48

Start by tracing how setUp() is invoked and where the current test case is represented during test execution. Confirm how setup code could access that information, then verify that it can identify the test case associated with each setup invocation.

Written by the indexing model from the issue text.