Testing

Getting started

Tools we use

Writing tests

Unexpected calls to `console.error` or `console.warn`

Writing a test for `console.error` or `console.warn`

Commands

React API level

Debugging tests

Run the core unit/integration test suite

Watch the core unit/integration test suite

Create HTML coverage reports

DOM API level

Run the browser test suite

Browser API level

Visual regression tests

end-to-end tests

Development

Caveats

Accessibility tree exclusion

Performance monitoring

Testing multiple versions of React

CI

Circle CI web interface

API request