Run specific jest project

Question

I'm setting up a lerna monorepo with jest, I'm using jest's projects like so: projects: ['<rootDir>/packages/*'].

Running tests work as expected, however, I'm not sure how can I run a specific project? Say I have:

/packages
  jest.config.js
  /core
      jest.config.js
  /blog
      jest.config.js

Currently jest runs tests in both packages using their specific configs, however, I'm not sure how can I tell jest to just run tests in one of those packages?

score 25 · Answer 1 · answered Jul 16 '20 at 16:54

25

Assuming you want to do this with Jest's projects property:

As of Jest v26.1.0, you can now run selected projects with Jest by doing the following:

jest --selectProjects myproj

This will find any "project" in your jest.config.js by it's displayName value.

See:

answered Jul 16 '20 at 16:54

Dana Woodman

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This should be the accepted answer. – taystack Nov 15 '21 at 22:10
This is exactly what i was searching for. Agree with @taystack. This should be the accepted answer – LukeSavefrogs Apr 15 '22 at 06:04

score 7 · Accepted Answer · answered Sep 21 '18 at 14:54

7

You can call jest with the name of a test that you want to run. You can also use just parts of the path to the test, or even a regular expression. So in your case, you could run tests in the core package like this:

jest packages/core

answered Sep 21 '18 at 14:54

Patrick Hund

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score 2 · Answer 3 · answered Sep 24 '18 at 12:23

2

There is currently no clean way of doing it from the CLI (see https://github.com/facebook/jest/issues/6189), but you can use https://github.com/rogeliog/jest-watch-select-projects to achieve it in watch mode

answered Sep 24 '18 at 12:23

SimenB

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Run specific jest project

3 Answers3