Here is my code.
I googled and searched several pages.
You get this error due to the validation performed in
validateInstanceMethodssince computeTestMethods() returns an empty List:
He suggested override or remove List size validation. I couldn't agree with him. Cause I have run my test cases with no problem on other projects. I read my code and error message again.
I felt it weird. Because I don't need to run suite method. I removed suite method and ran all tests successfully.
Here is my right source code.