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test_setup.js

Frontend Integration Specs

This directory contains Frontend integration specs. Go to spec/frontend if you're looking for Frontend unit tests.

Frontend integration specs:

  • Mock out the Backend.
  • Don't test individual components, but instead test use cases.
  • Are expected to run slower than unit tests.
  • Could end up having their own environment.

As a result, they deserve their own special place.

Run frontend integration tests locally

The frontend integration specs are all about testing integration frontend bundles against a mock backend. The mock backend is built using the fixtures and GraphQL schema.

We can generate the necessary fixtures and GraphQL schema by running:

bundle exec rake frontend:fixtures gitlab:graphql:schema:dump

Then we can use Jest to run the frontend integration tests:

yarn jest:integration <path-to-integration-test>

If you'd like to run the frontend integration specs without setting up the fixtures first, then you can set GL_IGNORE_WARNINGS=1:

GL_IGNORE_WARNINGS=1 yarn jest:integration <path-to-integration-test>

The jest-integration job executes the frontend integration tests in our CI/CD pipelines.

References