Adds plugins support to Jest.
yarn add --dev jest-plugins
In order to utilize
jest-plugins in your project, you must configure the setup to add your custom plugins. If
jest-plugins ever is merged into
jest, then this will be simpler, until then, follow the instructions below.
First, find your
jest config which is either in your
package.json or in a top-level file called
jest.config.js. Add a key
setupTestFrameworkScriptFile and point it to another file at the top-level called
jest-plugins.js, write the following:
// List all jest-plugins here.'jest-plugin-action''jest-plugin-console-matchers''jest-plugin-context''jest-plugin-its''jest-plugin-set''jest-plugin-unhandled-promise';
This is requiring each of the plugins and including it automatically in your project. By design, the
setupTestFrameworkScriptFile runs after
jest and the test environment have been set up which gives plugins the maximum capabilities to modify the environment.
Once installed, run
jest to run your tests and plugins should be accessible in your test files.