Right now the sample tests are identical to the actual ones, to ensure what is checked up, therefore the suggestion may be closed

This is an ongoing issue which I need to find a way of clarifying for people. Some kata provide example tests cases and others do not. If no test cases are provided, then some instructional examples are shown to help you create your own. Clicking "Run Tests" runs your example tests, which you sometimes have to write yourself (as you would if you were doing this with TDD style of development). If you submit your solution, the actual kata tests will be ran to verify it.