What is the difference between integration testing and unit testing?

What is the difference between integration testing and unit testing?

Unit testing focuses on testing individual components or functions in isolation, while integration testing checks how these components work together.

Can you give me examples of each type of testing?

Sure! A unit test might check if a function returns the correct output for given inputs. An integration test could verify that a user login process works correctly when the authentication service and database interact.

Which one should I prioritize in my testing strategy?

It depends on your project. Generally, unit testing is prioritized for catching bugs early, while integration testing is crucial for ensuring that components work together as expected.

Are there any tools you recommend for these tests?

For unit testing, popular tools include JUnit for Java and pytest for Python. For integration testing, you might consider Postman for API testing or Selenium for web applications.