tests.yml

name: Test Suite

on:
  pull_request:
    branches: [ master ]

jobs:
  unit:
    name: Unit tests
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version:
          - '3.8'   # focal
          - '3.10'  # jammy
          - '3.12'  # noble
    steps:
    - name: Check out code
      uses: actions/checkout@v2
    - name: Setup Python
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}
    - name: Install Tox
      run: pip install tox
    - name: Run tests
      run: tox -e py

  build:
    name: Build snap
    needs: unit
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Add fake tag to make vergit happy
      run: git tag v0.0.0
    - uses: snapcore/action-build@v1
      id: snap-build
    - uses: actions/upload-artifact@v1
      with:
        name: charm-snap
        path: ${{ steps.snap-build.outputs.snap }}

  integration:
    strategy:
      matrix:
        charmcraft_channel:
          - "2.x/stable"
          - "3.x/beta"
    name: Integration test
    needs: build
    runs-on: ubuntu-latest
    steps:
    - name: Init LXD
      run: |
        set -euxo pipefail
        sudo lxd init --auto
        # This is a throw-away CI environment, do not do this at home
        sudo chmod 666 /var/snap/lxd/common/lxd/unix.socket
        # Fixup iptables forwarding issues from LXD containers with a flush and
        # re-create of rules.
        sudo iptables -F FORWARD
        sudo iptables -P FORWARD ACCEPT
    - name: Checkout layer-basic
      uses: actions/checkout@v2
      with:
        repository: juju-solutions/layer-basic

    - name: Download built charm snap
      uses: actions/download-artifact@v4.1.7
      with:
        name: charm-snap
        path: tests/charm-minimal/charm-snap

    - name: Build reactive charm with charmcraft-2.x
      if: ${{ matrix.charmcraft_channel == '2.x/stable' }}
      run: |
        set -euxo pipefail
        sudo snap install --classic --channel ${{ matrix.charmcraft_channel }} charmcraft
        cat << EOF | tee tests/charm-minimal/charmcraft.yaml
        type: charm
        parts:
          charm-tools:
            plugin: nil
            override-build: |
              ls -lR \$CRAFT_PROJECT_DIR/
              snap install --dangerous --classic /root/project/charm-snap/charm_0.0.0_amd64.snap
              rm -rf \$CRAFT_PROJECT_DIR/parts/charm/src/charm-snap
          charm:
            after: [charm-tools]
            source: .
            plugin: reactive
            reactive-charm-build-arguments:
              - -v
              - --binary-wheels-from-source
              - --upgrade-buildvenv-core-deps
            build-packages:
              - python3-dev
              - libpq-dev
        bases:
          - name: ubuntu
            channel: "18.04"
            architectures: [amd64]
          - name: ubuntu
            channel: "20.04"
            architectures: [amd64]
          - name: ubuntu
            channel: "22.04"
            architectures: [amd64]
        EOF
        charmcraft pack -p tests/charm-minimal -v
    - name: Build reactive charm with charmcraft-3.x
      if: ${{ matrix.charmcraft_channel == '3.x/beta' }}
      run: |
        set -euxo pipefail
        sudo snap install --classic --channel ${{ matrix.charmcraft_channel }} charmcraft
        cat << EOF | tee tests/charm-minimal/charmcraft.yaml
        type: charm
        parts:
          charm-tools:
            plugin: nil
            override-build: |
              ls -lR \$CRAFT_PROJECT_DIR/
              snap install --dangerous --classic /root/project/charm-snap/charm_0.0.0_amd64.snap
              rm -rf \$CRAFT_PROJECT_DIR/parts/charm/src/charm-snap
          charm:
            after: [charm-tools]
            source: .
            plugin: reactive
            reactive-charm-build-arguments:
              - -v
              - --binary-wheels-from-source
              - --upgrade-buildvenv-core-deps
            build-packages:
              - python3-dev
              - libpq-dev
        base: ubuntu@24.04
        platforms:
          amd64:
        EOF
        charmcraft pack -p tests/charm-minimal -v
        mv minimal_amd64.charm minimal_ubuntu-24.04-amd64.charm
    ## action to interactively debug CI failures.
    # - name: Setup upterm session
    #   if: failure()
    #   uses: lhotari/action-upterm@v1
    - name: Upload charmcraft execution logs
      if: always()
      uses: actions/upload-artifact@v3
      with:
        name: charmcraft execution logs
        path: ~/snap/charmcraft/common/cache/charmcraft/log/*.log
    - name: Upload built charms
      uses: actions/upload-artifact@v3
      with:
        name: Built charms
        path: |
          minimal_ubuntu-18.04-amd64.charm
          minimal_ubuntu-20.04-amd64.charm
          minimal_ubuntu-22.04-amd64.charm
          minimal_ubuntu-24.04-amd64.charm