Understanding Unit Testing in Python

What is the main benefit of writing unit tests according to the video?

• It provides peace of mind by verifying code functionality.

• It ensures the code is free of syntax errors.

• It reduces the need for documentation.

• It makes the code run faster.

What issue was found when testing the circle area function with a negative radius?

• The function returned zero.

• The function returned a complex number.

• The function raised a syntax error.

• The function returned a negative area.

What is the recommended naming convention for test files in the video?

• testModule.py

• test_module.py

• module_test.py

• moduleTest.py

What is the role of the unittest module in Python?

• To convert Python code to machine code.

• To provide a framework for writing and running tests.

• To optimize Python code for performance.

• To compile Python code.

Which method is used to check if a function raises an exception for invalid input?

• assertTrue

• assertFalse

• assertEqual

• assertRaises

What should be done if a function does not raise a ValueError for a negative input?

• Return a default value.

• Modify the function to raise a ValueError.

• Raise a TypeError instead.

• Ignore the issue.

What is the purpose of the assertAlmostEqual method in unit testing?

• To check if two values are exactly equal.

• To verify if two values are approximately equal.

• To ensure a function raises an exception.

• To compare two strings for equality.

Why is it important to handle improper inputs in functions?

• To make the code run faster.

• To prevent runtime errors and ensure correct functionality.

• To improve the readability of the code.

• To reduce the size of the code.

What is the benefit of using unit tests when upgrading code?

• It makes the code more complex.

• It ensures new changes do not break existing functionality.

• It increases the execution time of the code.

• It reduces the need for comments.

What is the main message about unit tests in the final section?

• Unit tests are optional and not very useful.

• Unit tests are only for beginners.

• Unit tests help maintain code quality and should be embraced.

• Unit tests are only necessary for large projects.