bats.yml

name: bats

on:
  pull_request_target:
    types: [labeled, opened, synchronize, unlabeled]

jobs:
  bats:
    runs-on: ubuntu-latest
    if: github.event.pull_request.state == 'open'
    container: cloudposse/test-harness:latest
    env:
      MAKE_INCLUDES: Makefile
      TF_PLUGIN_CACHE_DIR: /tmp
      BATS_MODULE_TESTS: input-descriptions lint output-descriptions provider-pinning
      BATS_SUBMODULE_TESTS: input-descriptions lint output-descriptions
    steps:
    - name: Checkout
      uses: actions/checkout@v3
      with:
        fetch-depth: 0
        repository: ${{ github.event.pull_request.head.repo.full_name }}
        # Check out the PR commit, not the merge commit
        # Use `ref` instead of `sha` to enable pushing back to `ref`
        ref: ${{ github.event.pull_request.head.ref }}

    - name: Run tests on modified modules
      id: get-modified-files
      shell: bash -x -e -o pipefail {0}
      env:
        BASE_REF: ${{ github.base_ref }}
        HEAD_REF: ${{ github.head_ref }}
      run: |
        # when running in test-harness, need to mark the directory safe for git operations
        make safe-directory
        MODIFIED_MODULES=($(git diff --name-only origin/${BASE_REF} origin/${HEAD_REF} | xargs -n 1 dirname | sort | uniq | grep ^modules/ || true))
        if [ -z "$MODIFIED_MODULES" ]; then
            echo "No modules changed in this PR. Skipping tests."
            exit 0
        else
            echo "Running checks on the following modules:"
            printf -- "- %s\n" "${MODIFIED_MODULES[@]#modules/}"
        fi
        pass=true
        for dir in "${MODIFIED_MODULES[@]}"; do
          printf "\n\nBegin testing in $dir\n"
          (
            status=pass
            cd $dir
            [[ $dir =~ modules/.*/modules/ ]] && tests=$BATS_SUBMODULE_TESTS || tests=$BATS_MODULE_TESTS
            for test in $tests; do
              printf "\n\nRunning ${test} in $dir\n"
              bats -t /test/terraform/${test}.bats || status=fail
            done
            [[ $status == "pass" ]]
          ) || pass=false
          printf "\n\nEnd of testing in $dir\n\n\n"
        done
        [[ $pass == "true" ]]