Github Actions have everything that you need to run your jest tests, to do that simply use the run commands like so:

name: CI
on: push
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Install modules
      run: yarn
    - name: Run tests
      run: yarn test

This action executes Jest test runner without any previous action/build step or Docker required.

You must have the Jest running locally for the action to execute. More info on the Jest getting started guide

Add to your main.yml file or create a new file named .github/workflows/test.yml and add:

name: Tests

on: [push]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1
    - name: Run Jest
      uses: stefanoeb/jest-action@1.0.3

You can also pass custom args to jest through the with: parameter:

name: Tests

on: [push]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1
    - name: Run Jest
      uses: stefanoeb/jest-action@1.0.3
      with:
        jestArgs: path/to/my.test.js

If there is no previous step installing the necessary modules, this action will execute a yarn install or npm install automatically.

The Dockerfile and associated scripts and documentation in this project are released under the MIT License.