无需Cypress Dashboard并行测试：合并Mochawesome报告仅含单机器结果问题

问题根源 #

你的并行任务生成的Mochawesome报告文件名默认相同（比如mochawesome.json），在合并阶段复制文件时，后一个任务的文件会覆盖前一个，最终合并的只有最后一个任务的测试数据。

修复方案 #

1. 为每个并行实例生成唯一的报告文件名 #

修改Run Tests步骤的Cypress命令，通过--reporter-options指定带容器编号的唯一文件名，避免重名覆盖：

- name: Run Tests
  run: npx cypress run --spec $(node cypress-parallel.js ${{ matrix.containers }} 2) --reporter mochawesome --reporter-options reportFilename=mochawesome-${{ matrix.containers }}.json,overwrite=false,html=false
  continue-on-error: true

这里额外添加overwrite=false（防止单实例内报告覆盖）和html=false（只生成JSON文件，后续统一生成HTML报告），减少冗余文件。

2. 优化报告合并的文件收集逻辑 #

原合并步骤的find命令可替换为更简洁的通配符复制，确保所有子目录下的JSON报告都被收集：

- name: Merge mochawesome reports
  run: |
    mkdir -p merged-reports
    cp artifacts/**/*.json merged-reports/
    npx mochawesome-merge merged-reports/*.json > merged-reports/merged.json
    npx marge merged-reports/merged.json -f index -o mochawesome-report

完整修复后的GitHub Actions配置 #

name: Cypress Automation Tests
on:
  workflow_dispatch:
jobs:
  job1:
    name: cypress-run
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        containers: [0, 1]
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Install Packages
        run: npm install
      - name: Run Tests
        run: npx cypress run --spec $(node cypress-parallel.js ${{ matrix.containers }} 2) --reporter mochawesome --reporter-options reportFilename=mochawesome-${{ matrix.containers }}.json,overwrite=false,html=false
        continue-on-error: true
      - name: Upload Mochawesome results
        uses: actions/upload-artifact@v4
        with:
          name: mochawesome-${{ matrix.containers }}
          path: cypress/reports/

  merge-and-publish:
    name: reports
    if: always()
    runs-on: ubuntu-latest
    needs: job1
    steps:
      - uses: actions/checkout@v3

      - name: Install Node
        uses: actions/setup-node@v3
        with:
          node-version: '18'
  
      - name: Install dependencies
        run: npm ci

      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: artifacts

      - name: Merge mochawesome reports
        run: |
          mkdir -p merged-reports
          cp artifacts/**/*.json merged-reports/
          npx mochawesome-merge merged-reports/*.json > merged-reports/merged.json
          npx marge merged-reports/merged.json -f index -o mochawesome-report

      - name: Deploy to GitHub Pages
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./mochawesome-report

额外检查点 #

• 确认cypress-parallel.js脚本已正确将测试用例分配到两个容器，确保两个实例都有测试执行
• 可在GitHub Actions的Artifacts选项卡中，检查上传的artifact是否包含对应容器的JSON报告文件

内容的提问来源于stack exchange，提问作者Hari D