Unit testing interview questions

Now that we have provided an overview of unit testing in Python, this section will provide example questions and answers to help prepare you for your interviews, as follows:

• Question 1: Explain the difference between unit testing and integration testing.

  Answer: Unit testing is testing individual components or functions in isolation. Integration testing focuses on testing how a section of code interacts within the whole system. Unit testing tests for proper functions for an individual component, while integration testing validates how well different components perform together.

• Question 2: How are assertions used in unit testing?

  Answer: Assertions are used to validate the expected behavior of a function. They compare the expected output and the actual output to evaluate for accuracy.

• Question 3: What are ways you can improve the performance of your unit tests?

  Answer: Minimize dependencies, utilize the setUp() and teardown() methods, optimize...