Review Errors from Test Runners

In a test file, hover over an error to get more information about it.

Tip Screenshot

For a failed test, you can see the error message from the test runner on hover. Press ⌥⇧⏎ (macOS) / Shift+Alt+Enter (Windows/Linux)to immediately start debugging the test.

Related Resources

React, TypeScript, and TDD
How to write React applications in TypeScript using TDD, highlighting features of the IDE
Run Tests from Editor
Learn how to run a single test right from the editor.
Finding Tests in Large Test Files
Use the Structure tool window for quick navigation around large test files.