Mocking Apollo GraphQL Queries in React Testing

Mocking Apollo GraphQL Queries in React Testing

Learn how to test a component that uses Apollo GraphQL Queries in React Testing. Using the MockedProvider from the @apollo/client/testing library to wrap our component in the test. Providing mocks that exactly match the query you’re trying to mock

When testing our frontend code, we might find ourselves needing to mock GraphQL query responses. Here's how to do it.

When I learn a new technology, the first thing I think is “okay, how do I use this?” But soon thereafter, the question becomes “how do I test this?”

That was the case recently with Apollo GraphQL in my React project. In this post, we’ll learn how to test a component that uses a GraphQL query.

TLDR: There are Two Keys to Getting this Right

The TLDR is that there are two keys to getting this right:

  1. Using the MockedProvider from the @apollo/client/testing library to wrap our component in the test
  2. Providing mocks that exactly match the query you’re trying to mock

apollo graphql testing react javascript

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