25.16. Best Practices in Testing and Debugging

Try these first

1. 1.

   What are two reasons why positive and negative tests are essential?

   Hint

   Think about what could go wrong during execution.

2. 2.

   What does it mean for test cases to be isolated?

   Hint

   Consider the effects between different tests.

3. 3.

   Why is it important to write tests for both positive and negative cases?

   • To ensure robustness and reliability of the software.
   • To save time and effort.
   • Because it's a common practice.

   Hint

   Consider the stability of your application.

4. 4.

   True or False: Debugging techniques are not necessary when all tests pass.

   • True
   • False

   Hint

   Reflect on edge cases.

5. 5.

   You discover that an online form submission fails under certain conditions but passes in a testing environment. How would you approach debugging this issue?

   Hint

   Think about how the environment could be influencing outcomes.

6. 6.

   A common bug occurs in multiple modules of your application. Describe how you would systematically isolate and resolve the issue.

   Hint

   Identify dependencies to help narrow down the source of the problem.