UI Test Script (TestingLibrary) Guide
Author ATF tests for custom UI components using atf.uiTestScript.runTest() and the TestingLibrary API. Use this when a UI cannot be tested through the standard atf.form. or atf.catalog. steps — Angular/React widgets embedded in workspaces, custom SPAs or UI-page apps, and now-* web components. The test body runs in the client test runner with all API globals injected, so no imports are needed inside the script.