Can the AI write Cypress or Playwright (E2E) tests?

Yes, incredibly well. However, E2E tests require knowledge of the DOM structure. You must attach the HTML/React file so the AI knows which `id` or `class` selectors to click.

What happens if the AI writes a bad test that passes but doesn't actually test the logic?

This is called a 'Tautological Test' (testing that 1 equals 1). This happens if you don't use the 5-Layer framework. You must command the AI to 'test the core business logic' and review the generated assertions carefully.

Should I write tests before or after I write the code?

Traditionally, TDD (Test Driven Development) meant writing tests first. In the AI era, you can do both. However, AI-TDD is becoming incredibly popular: You ask the AI to write the tests based on the spec, and then you ask the AI to write the code to pass its own tests.

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Generating Tests with AI

Learn how to command AI to generate rigorous testing suites. Master the art of prompting for negative edge cases, attaching context for flawless mocks, and auto-diagnosing broken test traces.

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