In spite of the fact that Codechef is India’s one of the most used and biggest platform site of coding, I faced sometimes difficulty in finding test cases of a particular problem for which my solution would fail ,i.e in case of wrong answer verdict. I think many other coders also face the same difficulty many times.
So I request the @admin if the facility to view test cases of a particular problem will be incorporated it will be very useful not only to realize our mistakes but also to analyse our solution better.
Thanks.
Happy coding 
You are not the first to come up with the issue. It has been debated countless times.
More succinct explanations are clearly posted
here
There are many arguments for this, both for and against. See the discussions here -