name: defaults-run
on:
  - push
defaults:
  run:
    shell: sh
jobs:
  without-defaults:
    runs-on: ubuntu-latest
    steps:
    - run: '[ -z ${BASH+x} ] || shopt -oq posix || exit 1'
  with-defaults:
    runs-on: ubuntu-latest
    defaults:
      run:
        shell: bash
        working-directory: /tmp
    steps:
    - run: |
        [ -n ${BASH+x} ] && ! shopt -oq posix || exit 1
        [ $(pwd) = /tmp ] || exit 2
  override-in-step:
    runs-on: ubuntu-latest
    defaults:
      run:
        shell: bash
    steps:
    - run: '[ -z ${BASH+x} ] || shopt -oq posix || exit 1'
      shell: sh