There are two types of tests, integration tests and unit tests.

To run unit tests, run ./tools test unit.

Integration tests use a "headless" browser to run

Run ./tools test integration to run the test suite with integrated tests. Run ./tools test all to run unit tests and integration tests.

This runs simulated tests using headless browsers running concurrent editing operation. You should install a WebDriver implementation such as geckodriver:

• macOS: brew install geckodriver
• Ubuntu: npm install -g geckodriver
• Windows: choco install selenium-gecko-driver