Apollo - HelpMeTest

GraphQL

Testing Apollo Client: Mocking Queries, Mutations, and Cache

Apollo Client components are hard to test without the right tools because they depend on a live GraphQL server. Apollo's MockedProvider lets you define expected operations and their responses, so you can test components in complete isolation. This guide covers the full spectrum: loading states, successful responses, errors,

Testing

Apollo Client Testing: Mocking Queries, Mutations, and Cache

Apollo Client is the most widely used GraphQL client for React, and testing it properly means going beyond shallow component tests. You need to verify that your components handle loading states, successful data responses, error states, and cache interactions correctly. Apollo provides MockedProvider for exactly this purpose — this guide shows

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 these hooks properly — both in isolation and within components — requires understanding React Testing Library's async patterns and Apollo's MockedProvider. This guide covers the full hook testing