How to run Jest tests sequentially?

Question

I\'m running Jest tests via npm test. Jest runs tests in parallel by default. Is there any way to make the tests run sequentially?

I have some tests cal

Answer 1

Use the serial test runner:

npm install jest-serial-runner --save-dev

Set up jest to use it, e.g. in jest.config.js:

module.exports = {
   ...,
   runner: 'jest-serial-runner'
};

You could use the project feature to apply it only to a subset of tests. See https://jestjs.io/docs/en/configuration#projects-arraystring--projectconfig