Tests are often extremely helpful, but I think the goal of 100% coverage has done much more harm than good, and leads to the kind of trivial tests you describe.

Tests are often extremely helpful, but I think the goal of 100% coverage has done much more harm than good, and leads to the kind of trivial tests you describe. TDD usually works well, and helps guide you towards designing a usable, testable API. Don't test getters and setters, test the actual logic you care about.