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What does "integration test" mean in programming?

integration test is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.

Definition

A test that verifies that multiple components or services work correctly together. Integration tests sit between unit tests (single component) and end-to-end tests (full system). They often involve a real database or API.

Example

"Write an integration test to verify that the user creation endpoint stores data in the database."

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