To run your Magnitude test cases, use the CLI: 
npx magnitude

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Test in Parallel

You can run your Magnitude tests in parallel simply by providing the --workers or -w flag with the desired number of parallel workers: 
npx magnitude -w 4
If any Magnitude test fails, the CLI process will exit with status code 1. When deployed as part of a CI/CD pipeline e.g. with a GitHub Action, this will fail the deployment.

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Test Failures

Unlike existing frameworks like Playwright, the criteria for test case failure is not based on whether a selector fails or some expression evaluates false. Instead, Magnitude decides to fail a test case if either (1) any act cannot be completed or (2) a check does not hold true. It will attempt to execute a test case according to the provided steps and only fail if there is no clear way to accomplish the test case, or if any check isn’t satisfied.

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Integrating with CI/CD

You can run Magnitude tests in CI anywhere that you could run Playwright tests, just include LLM client credentials. For instructions on running tests cases on GitHub actions, see here.