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integration-jest

Jest preset for integration-testing

@tramvai/cli and puppeteer should be installed separately

Installation​

npm i --save-dev @tramvai/test-integration-jest

How To​

Debug and development of integration tests in Jest​

Using this jest preset you can run integration tests in watch mode. In this case, application itself will be launched only once and will work in background.

  1. Add preset @tramvai/test-integration-jest to jest.integration.config.js:

    module.exports = {
      preset: '@tramvai/test-integration-jest',
    };

  2. Add new script for running tests in watch mode to package.json:

    {
      "scripts": {
        "test:integration": "jest -w=3 --config ./jest.integration.config.js",
        "test:integration:watch": "jest --runInBand --watch --config ./jest.integration.config.js"
      }
    }

  3. Run some test with yarn test:integration:watch <path_to_test>. In this case you are able to go to local url http://localhost:3000 and see application at work.

Environment for Jest​

Minimal set of dependencies for running jest:

npm i --save-dev jest @types/jest jest-circus