Set up test assemblies

To set up a test assembly that uses the Input System's automation framework, follow these steps:

1. In the Packages/manifest.json file of your project, com.unity.inputsystem must be listed in testables. This is necessary for test code that comes with the package to be included with test builds of your project.
   
   You can, for example, add this after the dependencies property like so:

   },
   "testables" : [
       "com.unity.inputsystem"
   ]
   

2. Create a new assembly definition (menu: Create > Assembly Definition) or go to an assembly definition for a test assembly that you have already created.

3. Add references to nunit.framework.dll, UnityEngine.TestRunner, and UnityEditor.TestRunner (as described in How to create a new test assembly), as well as Unity.InputSystem and Unity.InputSystem.TestFramework for the Input System.