playwright-testing

New E2E tests should be created in apps/prairielearn/src/tests/e2e. Each test file should be named *.e2e.spec.{ts,tsx} and contain tests for a specific feature or user flow.

expect and test should be imported from apps/prairielearn/src/tests/e2e/fixtures.ts. These include fixtures to start the PrairieLearn server and provide an editable test course.

Prefer using selectors that use user-facing content, such as getByRole, getByText, and getByLabelText. If that's impractical, consider using getByTestId instead. Avoid using locator() with implementation details like CSS classes or IDs unless absolutely necessary.