# Testing guidelines

## Unit testing

Unit testing is a software testing method that tests individual units of source code to determine whether they satisfy the specification.

For details, see the [Unit testing guidelines](<unit-testing/index.md>).

## Integration testing

Integration testing combines and tests the individual software modules as a group, and is done after unit testing.

Integration testing can include the following subtypes of tests:

1. Fault injection testing
2. Back-to-back comparison between a model and code
3. Requirements-based testing
4. Anomaly detection during integration testing
5. Random input testing

For details, see the [Integration testing guidelines](<integration-testing/index.md>).