# Unity Notes - When using Unity, be sure to define `UNITY_INCLUDE_CONFIG_H` to use the [`unity_config.h`](/Unity/src/unity_config.h). (Details on why are in the [Unity Configuration Guide](/Unity/docs/UnityConfigurationGuide.md).) - For the quad directory, this is done at compile-time of the Unity library [_here_](/Unity/src/Makefile#L4) and at compile-time of the test runner [_here_](/quad/library.mk#L58). Both rely on the flag defined [_here_](/quad/library.mk#L19). - Follow the examples in the [`Unity/examples`](/Unity/examples) for a guide, as well as the documentation in [`Unity/docs`](/Unity/docs) - The [Unity Getting Started guide](/Unity/docs/UnityGettingStartedGuide.md) and the [Unity Assertions Cheat Sheet Suitable for Printing and Possibly Framing] (/Unity/docs/UnityAssertionsCheatSheetSuitableforPrintingandPossiblyFraming.pdf) are nice references - Generally, the format is to start `main()` with `UNITY_BEGIN()`, followed by calls to `RUN_TEST(test_function)` where `test_function` is a test to run, ended with `return UNITY_END()`. Additionally, each `test_function` should be a `void` and call the [appropriate asserts](/Unity/docs/UnityAssertionsReference.md).