Tests are expected to fail should be very explicit

I was trying to track down a problem and spent entirely too long looking into a test that was expected to fail. Obviously by looking at the source of the test its clear but it would be helpful if failing tests are in their own test that explicity says in the name it should error, something like `test_for_input_failure`.

No file or test path is named. Start by locating tests that intentionally expect failure and review how the test suite currently identifies them. Done means expected-failure tests are clearly named or separated so their purpose is obvious when a test fails.

Written by the indexing model from the issue text.