name: CI

on: [push]

jobs:
  build:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        node-version: [12.x, 15.x]

    steps:
      - uses: actions/checkout@v2

      - name: Use Node ${{ matrix.node-version }}
        uses: actions/setup-node@v2
        with:
          node-version: ${{ matrix.node-version }}

      - name: Use cached node_modules
        id: cache
        uses: actions/cache@v2
        with:
          path: node_modules
          key: nodeModules-${{ hashFiles('**/package-lock.json') }}-${{ matrix.node-version }}
          restore-keys: |
            nodeModules-

      - name: Install dependencies
        if: steps.cache.outputs.cache-hit != 'true'
        run: npm install
        env:
          CI: true

      - name: Test
        run: npm run test -- --coverage
        env:
          CI: true