What common mistake do developers make with Test naming, why does the mistake cause problems, and what is the safer approach?

What common mistake do developers make with Test naming, why does the mistake cause problems, and what is the safer approach? One recurring problem with test naming is applying it without understanding the boundary it protects. Writing a test that only asserts a 200 response while never verifying that the important application state actually changed. In addition, Clear test names explain the behavior under test and make failures easier to understand. Safer engineering approach: keep the responsibility in the correct layer, use the framework's supported API, validate and authorize inputs, avoid hidden side effects, and verify the behavior with tests.