Testing Principles

1. A good test case is one likely to show an error.

2. Description of expected output or result is an essential part of test-case definition.

3. A programmer should avoid attempting to test his/her own program.
testing is more effective and successful if performed by an Independent Test Team.

4. Avoid on-the-fly testing. Document all test cases.

5. Test valid as well as invalid cases.

6. Thoroughly inspect all test results.

7. More detected errors implies even more errors present.

8. Decide in advance when to stop testing.

9. Do not plan testing effort under the tacit assumption that no errors will be found.

10. Testing is an extremely creative and intellectually challenging task.