Testing Playground by Stephan Meijer

Testing Playground is an extension that helps you find the best queries to select elements for the open-source Testing-Library family. It allows you to inspect the element hierarchies in the Developer Tools, and provides you with suggestions on how to select them, while encouraging good testing practices.

You will get two new tabs in your DevTools: "🐸 Testing Playground" as a tab, and as a side panel under the "Elements" tab.

By selecting one of the elements on the page, you can inspect the different queries that can be used to select the element in your tests, and get feedback that tells you when and why there are better queries available.

If you inspect an element on the page using the regular Elements tab, then switch over to the Testing Playground tab, that element will be automatically selected.