UE Test Authoring

Write Unreal Engine automated tests in the project's own style. Author the test with your own file tools, audit it against the behavior the user actually asked to be covered, and use Rider for what an IDE knows and grep does not: the resolved API under test, registration and include diagnostics, solution code style, and builds.

Gate

1. Confirm the workspace is a UE project: Glob for *.uproject at the root. If there is none, stop and say the task must run from the UE project root.
2. Confirm the request needs test code written or changed. A runtime bug, a plain build request, or a non-test source change → clarify scope first.
3. Read only what the test needs: the .uproject, the test module's Build.cs, one nearby test that already uses the same framework, and the declaration of the API under test.

Tool split