tests_unit.yml

name: Unit Tests

on:
  workflow_dispatch:
    inputs:
      clearCaches:
        description: "Clear workflow caches where possible, empty means false"
        required: false
        type: string
      iterations:
        description: "Number of iterations on each chosen operating system. Default 1. Max 85."
        required: true
        default: 1
        type: number
      operatingSystems:
        description: "Which operating systems to run tests on"
        required: true
        type: choice
        # If you alter system names in default + options here, also alter osArray below to match
        default: '["windows-latest", "macos-14", "ubuntu-latest"]'
        options:
          - '["windows-latest", "macos-14", "ubuntu-latest"]'
          - '["windows-latest"]'
          - '["macos-14"]'
          - '["ubuntu-latest"]'
  schedule:
    - cron: "42 0 * * *"
  pull_request:
  push:
    # Ignore merge queue branches on push; avoids merge_group+push concurrency race since ref is same
    branches-ignore:
      - 'gh-readonly-queue/**'
  merge_group:

concurrency:
  # if a workflow is run against the same ref, only one at a time...
  # ...but allow different triggers to run concurrent (push, manual flake run, scheduled flake run...)
  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
  cancel-in-progress: true

jobs:
  # We want to generate our matrix dynamically
  # Initial job generates the matrix as a JSON, and following job will use deserialize and use the result
  matrix_prep:
    # Do not run the scheduled jobs on forks
    if: (github.event_name == 'schedule' && github.repository == 'ankidroid/Anki-Android') || (github.event_name != 'schedule')
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.build-matrix.outputs.result }}
    steps:
      - id: build-matrix
        uses: actions/github-script@v7
        with:
          script: |
            // by default, we will include all 3 platforms we test on
            // "latest" would be easy everywhere, but "macos-14" doesn't always happen if you choose "latest"
            // and we want macos-14 because it has Apple Silicon and is faster
            // if you alter this, also alter it above in the workflow_dispatch options list
            let osArray = ["ubuntu-latest", "macos-14", "windows-latest"]
            
            // by default, we will run one iteration on each selected system
            let iterationArray = [1]
            
            // workflow dispatch will be a drop-down of different options
            if (context.eventName === "workflow_dispatch") {
              const inputs = ${{ toJSON(inputs) }}
              osArray = JSON.parse(inputs['operatingSystems'])
              console.log('inputs is: ' + JSON.stringify(inputs))
              console.log('osArray is: ' + osArray)
              
              const iterationInput = inputs.iterations
              console.log('iterations input is: ' + iterationInput)
              // this will expand for example with input 5 => [1, 2, 3, 4, 5]
              iterationArray = []
              for (let i = 1; i <= iterationInput; i++) {
                iterationArray.push(i);
              }
              console.log('iterationArray is: ' + iterationArray)
            }

            // If we are running on a schedule it's our periodic passive scan for flakes
            // Goal is to run enough iterations on all systems that we have confidence there are no flakes
            if (context.eventName === "schedule") {
              const iterationCount = 15
              for (let i = 1; i <= iterationCount; i++) {
                iterationArray.push(i);
              }
            }

            let includeArray = [];
            for(const os of osArray) {
              // we do this work to define 'name' so we don't need to update branch protection rules
              // if the os changes, the name is used in the expanded workflow run name, which is then
              // used as a "required check" on branch protection merge rules, this keeps it stable
              // even if "macos-14" changes to "macos-15" in the future so we just change the list here
              // but don't have to go into organization settings / protection rules etc etc
              includeArray.push({"os": os, "name": os.split('-')[0]});
            }
            return {
              "os": osArray,
              "include": includeArray,
              "iteration": iterationArray
            }
      - name: Debug Output
        run: echo "${{ steps.build-matrix.outputs.result }}"

  # This uses the matrix generated from the matrix-prep stage
  # it will run unit tests on whatever OS combinations are desired
  unit:
    name: JUnit Tests (${{ matrix.name }} run ${{ matrix.iteration }})
    # Do not run the scheduled jobs on forks
    if: (github.event_name == 'schedule' && github.repository == 'ankidroid/Anki-Android') || (github.event_name != 'schedule')
    needs: matrix_prep
    timeout-minutes: 30
    env:
      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
    strategy:
      fail-fast: false
      matrix: ${{fromJson(needs.matrix_prep.outputs.matrix)}}
    runs-on: ${{ matrix.os }}
    #env:
    #  CODACY_TOKEN: ${{ secrets.CODACY_TOKEN }}
    steps:
      - name: Configure Windows Pagefile
        uses: al-cheb/configure-pagefile-action@v1.4
        if: contains(matrix.os, 'windows')
        with:
          minimum-size: 8GB
          maximum-size: 12GB
          disk-root: "C:"

      - uses: actions/checkout@v4
        with:
          fetch-depth: 50

      - name: Configure JDK
        uses: actions/setup-java@v4
        with:
          distribution: "temurin"
          java-version: "21"  # also change jitpack.yml

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v3
        timeout-minutes: 5
        with:
          # Only write to the cache for builds on the 'main' branches, stops branches evicting main cache
          # Builds on other branches will only read from main branch cache writes
          # Comment this and the with: above out for performance testing on a branch
          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
          # gradle-home-cache-cleanup is temporarily disabled to investigate cache pollution issues
          # Requested in: https://github.com/gradle/actions/issues/167#issuecomment-2052352341
          #   gradle-home-cache-cleanup: true

      - name: Clear Caches Optionally
        if: "${{ github.event.inputs.clearCaches != '' }}"
        shell: bash
        run: |
          du -sk ~/.gradle
          rm -fr ~/.gradle
          du -sk ~/.gradle || echo ~/.gradle is gone

      - name: Gradle Dependency Download
        uses: nick-invision/retry@v3
        with:
          timeout_minutes: 10
          retry_wait_seconds: 60
          max_attempts: 3
          command: ./gradlew robolectricSdkDownload --daemon

      - name: Run Unit Tests
        run: ./gradlew jacocoUnitTestReport --daemon

      - name: Store Logcat as Artifact
        # cancelled() handles test timeouts
        # remove when test timeouts cause a failure()
        if: failure() || cancelled()
        uses: actions/upload-artifact@v4
        with:
          name: logcat-${{ matrix.name }}-${{ matrix.iteration }}
          # look for the `<system-out>` element in the XML files in `test-results`
          # The folder contains far too much data:
          # * .bin files
          # * XML rather than TXT
          # * Files are mostly JaCoCo issues logged to stderr (#16180)
          # * All tests are logged, rather than just failures
          # despite this, it's a great start
          # look to see if there's a dependency we can use, arther than improving this
          path: |
            **/build/test-results/

      - name: Stop Gradle
        if: contains(matrix.os, 'windows')
        run: ./gradlew --stop

      - uses: codecov/codecov-action@v4
        with:
          verbose: true