add missing file #3

	name: Unit Tests
	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	unit-tests:
	name: Unit tests
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Set up node
	uses: actions/setup-node@v2
	with:
	node-version: 14
	registry-url: https://registry.npmjs.org

	- name: Get yarn cache directory path
	id: yarn-cache-dir-path
	run: echo "::set-output name=dir::$(yarn cache dir)"

	- uses: actions/cache@v2
	id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
	with:
	path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
	key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn-

	- name: Install dependencies
	run: yarn install --frozen-lockfile

	- name: Run unit tests
	run: yarn test

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