testing.yaml

name: Testing

on:
  push:
    branches:
      - 'master'
      - 'release-*'
  pull_request:
    branches:
      - 'master'
      - 'release-*'
  workflow_dispatch:
    inputs:
      debug_enabled:
        description: 'Run the build with tmate debugging enabled (https://github.com/marketplace/actions/debugging-with-tmate)'
        required: false
        default: false
env:
  # Golang version to use across CI steps
  GOLANG_VERSION: '1.22'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  event_file:
    name: 'Event File'
    runs-on: ubuntu-latest
    steps:
      - name: Upload
        uses: actions/upload-artifact@v4
        with:
          name: Event File
          path: ${{ github.event_path }}
  test-unit:
    name: Run unit tests
    runs-on: ubuntu-latest
    steps:
      - name: Set up Go
        uses: actions/setup-go@v5.0.2
        with:
          go-version: ${{ env.GOLANG_VERSION }}
        id: go

      - name: Check out code into the Go module directory
        uses: actions/checkout@v4

      - name: Restore go build cache
        uses: actions/cache@v4
        with:
          path: ~/.cache/go-build
          key: ${{ runner.os }}-go-build-v1-${{ github.run_id }}

      - name: Download all Go modules
        run: |
          go mod download
      - name: Test
        run: make test-unit

      - name: Upload Unit Test Results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: Unit Test Results
          path: |
            junit.xml
      - name: Generate code coverage artifacts
        uses: actions/upload-artifact@v4
        with:
          name: coverage-output-unit
          path: coverage-output-unit/coverage.out

  test-e2e:
    strategy:
      fail-fast: false
      matrix:
        kubernetes:
          - version: 1.26
            latest: false
          - version: 1.27
            latest: false
          - version: 1.28
            latest: false
          - version: 1.29
            latest: true
    name: Run end-to-end tests
    runs-on: ubuntu-latest
    steps:
      - name: Set up Go
        uses: actions/setup-go@v5.0.2
        with:
          go-version: '1.22'
      - uses: actions/checkout@v4
      - name: Setup k3s
        env:
          INSTALL_K3S_CHANNEL: v${{ matrix.kubernetes.version }}
        run: |
          curl -sfL https://get.k3s.io | sh -
          sudo mkdir ~/.kube
          sudo cp /etc/rancher/k3s/k3s.yaml ~/.kube/config
          sudo chmod 755 ~/.kube/config
          kubectl version
          kubectl create ns argo-rollouts
      - uses: actions/cache@v4
        with:
          path: ~/go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-
      - name: Download cache
        run: go mod download
      - name: Install CRDs
        run: |
          kubectl apply -k  manifests/crds
          kubectl apply -f  test/e2e/crds
      - name: Start controller
        run: make start-e2e 2>&1 | sed -r "s/[[:cntrl:]]\[[0-9]{1,3}m//g" > /tmp/e2e-controller.log &
      - name: Setup tmate session
        uses: mxschmitt/action-tmate@v3
        if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled == 'true'}}
      - name: Run e2e tests
        run: make test-e2e
        if: ${{ !(github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled == 'true') }}
      - name: Output Rerun Overview
        run: |
          [[ -f rerunreport.txt ]] && cat rerunreport.txt || echo "No rerun report found"
      - name: Upload E2E Test Results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: E2E Test Results (k8s ${{ matrix.kubernetes.version }})
          path: |
            junit.xml
      - name: Upload e2e-controller logs
        uses: actions/upload-artifact@v4
        with:
          name: e2e-controller-k8s-${{ matrix.kubernetes.version }}.log
          path: /tmp/e2e-controller.log
        if: ${{ always() }}
      - name: Upload code coverage artifacts
        uses: actions/upload-artifact@v4
        with:
          name: coverage-output-e2e
          path: coverage-output-e2e
        if: ${{ matrix.kubernetes.latest }}

  coverage-process:
    name: Process Coverage Files
    runs-on: ubuntu-latest
    needs:
      - test-unit
      - test-e2e
    steps:
      - name: Set up Go
        uses: actions/setup-go@v5.0.2
        with:
          go-version: ${{ env.GOLANG_VERSION }}
        id: go
      - name: Get e2e code coverage
        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
        with:
          name: coverage-output-e2e
          path: coverage-output-e2e
      - name: Get unit test code coverage
        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
        with:
          name: coverage-output-unit
          path: coverage-output-unit
      - name: combine-go-coverage
        run: |
          go tool covdata percent -i=coverage-output-unit/,coverage-output-e2e/ -o full-coverage.out
      - name: Upload code coverage information to codecov.io
        uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0
        with:
          file: full-coverage.out
          fail_ci_if_error: false
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}