winui-ui-testing Skill

Source

• Creator: microsoft
• Repository: microsoft/win-dev-skills
• Skill file: plugins/winui/skills/winui-ui-testing/SKILL.md

What it does

Automated UI testing for WinUI 3 apps — generate a batch test script, run all tests in one pass, read results. Covers element assertions, interactions, value checking (TextBox, ComboBox, ToggleSwitch), file pickers, flyouts, dialogs, persistence, and accessibility audits.

Skill instructions

Approach The goal of this skill is to validate UI and app functionality automatically, without manual interaction, by exercising the app's UI elements, verifying their state, and asserting that the app behaves as expected under test conditions. There are two main approaches: 1. Interactive exploration — manually run the app, use winapp ui <command to explore the UI tree, find AutomationIds, verify element properties, and test functionality interactively. This is useful for discovery, but slow and expensive if repeated for every test iteration. 2. Scripted batch testing — generate a ui-tests.ps1 script that exercises all UI elements and asserts expected behavior in one pass. This allows you to run the tests automatically, capture results, and iterate quickly without manually interacting with the app each time. Unless the user asked for interactive exploration, or you are unfamiliar with the code/app or need to explore the UI tree to discover AutomationIds for hidden or dynamically gener