relay-e2e-test

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Write and run markdown-driven e2e tests for Relay. Covers fixture format, server/client code patterns, interaction DSL, snapshots, and running tests.

facebook By facebook schedule Updated 4/14/2026
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name: relay-e2e-test oncalls: ['relay'] description: Write and run markdown-driven e2e tests for Relay. Covers fixture format, server/client code patterns, interaction DSL, snapshots, and running tests. allowed-tools: Bash, Read, Edit, Write, AskUserQuestion, mcp__plugin_meta_mux__search_files

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.
Install via CLI
npx skills add https://github.com/facebook/relay --skill relay-e2e-test
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