Is your test suite comprehensible to someone new to the project? Can you find where you tested that last feature? Do you have to wade through dozens of files to deal with updated code?
Organizing tests are hard. It is easy to make things overly elaborate and complicated. Learn an approach to grouping the tests together in a way that makes sense. We can test drive without creating overly brittle tests. Lets build better designed projects by keeping our test suite clear and understandable.