githubactions_full_matrix.yml

jobs:
  build-and-test:
    name: ${{ matrix.command }} on  ${{ matrix.platform }} (xcode ${{ matrix.xcode }}, ${{ matrix.macos }})
    runs-on: ${{ matrix.macos }} #os switching
    strategy:
      fail-fast: false #if 'true' then one failed job cancels all jobs remaining
      matrix:
        xcode: ['13.0', '12.5.1', '12.0.1']
        macos: ['macos-11', 'macos-10.15']
        scheme: ['Earendil']
        command: ['test']
        platform: ['macOS', 'iOS', 'tvOS', 'watchOS', 'mac-catalyst']
    steps:
    - uses: maxim-lobanov/[email protected]
      with:
        xcode-version: ${{ matrix.xcode }}
    - uses: mxcl/[email protected]
      with:
        platform: ${{ matrix.platform }}
        scheme: ${{ matrix.scheme }}
        action: ${{ matrix.command }} 
        code-coverage: true
        verbosity: xcpretty
        upload-logs: always