Testing
Relay Modern Testing: MockPayloadGenerator, relay-test-utils, and Fragment Testing
Relay Modern is Facebook's production GraphQL client, built for performance and type safety.
GraphQL
Latest
Testing
GraphQL Client Mocking Strategies: MSW, graphql-tools Mock Schema, and Beyond
When testing GraphQL client code, you have multiple layers where you can inject mocks: at the network level (MSW), at the schema level (graphql-tools), at the client level (Apollo MockedProvider, urql exchanges), or at the component level. Each approach has tradeoffs. This guide compares them and shows when to
Testing
Apollo Client + React Testing Library: Hook Testing and Optimistic UI
Apollo Client's hook API (useQuery, useMutation, useLazyQuery, useSubscription) is how most React apps interact with GraphQL today.
Testing
Playwright and Cypress for GraphQL E2E Testing
E2E testing for GraphQL-powered apps requires different techniques than REST APIs. With REST, you intercept by URL (/api/users).
Testing
GraphQL Integration Testing with Supertest and Node.js
Apollo Server's executeOperation is excellent for most GraphQL testing.
Testing
Testing GraphQL APIs with Jest and Apollo Server
Apollo Server is the most popular GraphQL server for Node.js. Its testing story is surprisingly good: executeOperation lets you run queries against an in-memory server without HTTP overhead, making integration tests fast and deterministic. This guide focuses on the practical patterns you need for testing Apollo Server 4
Testing
GraphQL Testing Guide: Unit, Integration, and E2E Strategies
Testing GraphQL APIs is fundamentally different from testing REST. With REST, each endpoint has a specific contract.
Testing
GraphQL Contract Testing: Keeping Clients and Servers in Sync
GraphQL schema evolution is a double-edged sword. The schema gives you a formal contract between clients and servers.
Testing
GraphQL API Testing: Jest, Apollo MockedProvider, and E2E Testing
GraphQL APIs break most REST testing assumptions. One endpoint, unlimited query shapes, typed schemas, subscriptions — it's a different beast.