What is the difference between a unit test and an integration test?

What is the difference between a unit test and an integration test?

Blog Article

A unit test focuses on testing individual components or functions in isolation. It ensures that each part of the code works as expected and is often written using testing frameworks like unittest or pytest.

An integration test, on the other hand, tests how different components work together. It ensures that the application functions correctly as a whole, including interactions between the frontend, backend, and database.

In full-stack development, both unit tests and integration tests are essential for ensuring code quality. Unit tests catch bugs early in the development process, while integration tests verify that the application works as expected in real-world scenarios.