TIL (2022.02.08)

DAY 17

🔖 MISSION4: QUUUUUUUUIZ

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Chapter 7 & 9

Quiz is based on Clean Code Chapter 7 and 9 Good Luck!

💡 What is better, to throw Exceptions or return error codes? *10점

• Error Codes
• Exceptions

💡 When should we write try/catch/finally? *10점

• First, before we write any code.
• At the end, when cleaning the code.

💡 What kind of information should our error messages have? *10점

• The stack trace only.
• The operation that failed, type of failure, more information about the error.

💡 Why shouldn’t we return ‘null’ from methods/functions? *10점

• We might forget to check for null and can easily have null pointer exceptions.
• The code does not run.

💡 Is passing ‘null’ as an argument a good practice? *10점

• Yes
• No

💡 Having dirty tests can be worse than having no tests at all. *10점

• True
• False

💡 Test code is as important as production code. *10점

• True
• False

💡 How many concepts should a test function test? *10점

• Multiple
• One

💡 Should tests depend on each other *10점

• Yes
• No

💡 What output should a test have? *10점

• Boolean
• None, throw an error.

소감 3줄 요약

• Quiz(10/10)
• 만점이다~!
• 벌써 종강회가 다가오고 있다. 끝까지 완주해보자 🙌