Relay E2E Tests

Markdown-driven end-to-end tests for Relay. Each test is a self-contained .md file that defines a GraphQL server (via Grats), a Relay-powered React component, and optional interaction steps. The test harness extracts the code blocks, compiles them with Grats + relay-compiler, renders with React Testing Library, runs interactions, and snapshot-tests the output.

Tests run against Relay runtime packages from source, so changes are reflected immediately without a build step.

References

Read the appropriate reference file based on your task:

• Writing fixtures — fixture format, example, server/client code patterns, interaction DSL, snapshots. Read when creating or modifying test fixtures.
• Running tests (internal) — setup, commands, and compiler resolution for fbsource / OD. Read when running tests internally.
• Running tests (GitHub) — setup, commands, and compiler resolution for the OSS repo. Read when running tests on GitHub.