How do I ensure that my test cases covers every aspect of the requirements?
For example I had written test cases for the login page with all possible combinations I can think of and submitted for review.
My manager reviewed and updated me that I am missing test cases for color of buttons.
Again after updating these cases, when someone else was testing the application using my test cases, he missed the alignment issues of page/text boxes. In a meeting our conclusion was that I had missed test cases related to that.
Now, I am not sure how to confirm that my test cases gives 100% coverage.