name: Ruby CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  test:

    runs-on: ubuntu-latest

    strategy:
      matrix:
        ruby-version: ["3.0", "2.7", "2.6", "2.5", "jruby-head"]

    steps:
      - uses: actions/checkout@v2
      - name: Set up Ruby ${{ matrix.ruby-version }}
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: ${{ matrix.ruby-version }}
          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
      - name: Run tests
        run: bundle exec rake