on: push
jobs:
  check:
    runs-on: ubuntu-latest
    steps:
      - shell: bash
        run: |
          if [[ -n "$BASH" ]]; then
            echo "I'm $BASH!"
          else
            exit 1
          fi
  check-container:
    runs-on: ubuntu-latest
    container: node:12-buster-slim
    steps:
      - shell: bash
        run: |
          if [[ -n "$BASH" ]]; then
            echo "I'm $BASH!"
          else
            exit 1
          fi