DAY 19

🔖 오늘 읽은 범위 : QUIZ

1. **What is better, to throw Exceptions or return error codes? ***

   Error Codes

   Exceptions

2. **When should we write try/catch/finally? ***

   First, before we write any code.

   At the end, when cleaning the code.

3. **What kind of information should our error messages have? ***

   The stack trace only.

   The operation that failed, type of failure, more information about the error.

4. **Why shouldn’t we return ‘null’ from methods/functions? ***

   We might forget to check for null and can easily have null pointer exceptions.

   The code does not run.

5. **Is passing ‘null’ as an argument a good practice? ***

   Yes

   No

6. **Having dirty tests can be worse than having no tests at all. ***

   True

   False

7. **Test code is as important as production code. ***

   True

   False

8. **How many concepts should a test function test? ***

   Multiple

   One

9. **Should tests depend on each other ***

   Yes

   No

10. **What output should a test have? ***

    Boolean

    None, throw an error.