build

Document the `utils` module and reference it in the randomization docs #1256

	name: build

	on: [push, pull_request]

	jobs:
	test:
	name: Build, lint, and test on Node.js ${{ matrix.node }}

	runs-on: ubuntu-latest
	strategy:
	matrix:
	node: [14, 16]

	steps:
	- uses: actions/checkout@v2

	- name: Setup Node.js ${{ matrix.node }}
	uses: actions/setup-node@v2
	with:
	node-version: ${{ matrix.node }}
	cache: npm

	- name: Install npm@v7
	run: npm install -g npm@7

	- name: Install dependencies
	run: npm ci

	# Running this after `npm ci` because `npm ci` removes `node_modules`:
	- name: Download Turborepo cache
	uses: actions/cache@v2
	with:
	path: node_modules/.cache/turbo
	key: ${{ runner.os }}-node-${{ matrix.node }}-turbo-${{ hashFiles('node_modules/.cache/turbo') }}
	restore-keys: \|
	${{ runner.os }}-node-${{ matrix.node }}-turbo-

	- name: Build packages
	run: npm run build

	# TODO setup linting
	# - name: Lint
	# run: npm run lint

	- name: Run tests
	run: npm run test -- --ci --coverage --maxWorkers=2
	env:
	NODE_OPTIONS: "--max-old-space-size=4096" # Increase heap size for jest
	# TODO setup codecov or coveralls
	# - name: Upload coverage to Codecov
	# uses: codecov/codecov-action@v1

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