# Automated testing

> Use the Unity Test Framework to write and run automated tests for your Unity C# code.

Tests are an important part of modern software development practice. Writing tests for your code helps you have confidence that your project works as expected as it scales in size and complexity. Unity provides the [Unity Test Framework](https://docs.unity3d.com/Packages/com.unity.test-framework@latest) package to help you write and run tests for your C# code.

The package integrates and extends the C# test framework NUnit, adding custom Unity functionality is a tool that allows you to test your code in both **Edit** mode and **Play** mode, and also on target platforms such as Standalone, Android, or iOS. The Test Runner window is built into the Editor and works similarly to test runners in IDEs like Visual Studio.

For more information on other versions of the Test Framework package, refer to the [com.unity.test-framework](https://docs.unity3d.com/Packages/com.unity.test-framework@latest) page.

## Additional resources

* [Unity Test Framework](https://docs.unity3d.com/Packages/com.unity.test-framework@latest).
* [Performance Testing Package for Unity Test Framework](https://docs.unity3d.com/Packages/com.unity.test-framework.performance@latest/).