Integration Test
A test that verifies multiple components or systems work together across a real integration boundary.
Plain English
Check that connected parts exchange data and behavior correctly.
In context
Integration tests exercise contracts such as databases queues files or services with more realism and cost than focused unit tests.
Example
“The integration test writes an order and verifies the event reaches the billing adapter.”
When you'll hear this
- continuous integration
- API validation
- data pipelines
Common misunderstanding
An integration test is not necessarily end-to-end and may cover only one important boundary.
Also known as
integration testingservice integration test
Commonly used by
Related terms
Updated: 2026-08-27
