如何获取测试覆盖率报告？

Question

我有一个这样的 buildspec 文件：

version: 0.2


phases:
  install:
    commands:
      - pip install pytest
      - pip install pytest-cov
      - pip install .

  build:
    commands:
      - python -m pytest --junitxml=unittests.xml 

reports:
  unit_tests:
    files:
      - unittests.xml
    file-format: JUNITXML

构建成功，我可以按预期在 Report groups 下查看我的报告。

现在我想扩展它并使用选项 --cov-report 查看覆盖范围。我试过了

version: 0.2


phases:
  install:
    commands:
      - pip install pytest
      - pip install pytest-cov
      - pip install .

  build:
    commands:
      - python -m pytest --junitxml=unittests.xml --cov-report=xml:coverage.xml

reports:
  unit_tests:
    files:
      - unittests.xml
    file-format: JUNITXML
  coverage_tests:
    files:
      - coverage.xml
    file-format: COBERTURAXML

但没有成功。我得到输出：

 generated xml file: /codebuild/output/<removed>/unittests.xml
 ... <skipped a few lines here>
 Report export config is NO_EXPORT, skip exporting reports
 Preparing to copy CODE_COVERAGE report coverage_tests
 Expanding base directory path:  .
 Assembling file list
 Expanding .
 Expanding file paths for base directory .
 Assembling file list
 Expanding coverage.xml
 Skipping invalid file path coverage.xml
 No matching report paths found
 Phase complete: UPLOAD_ARTIFACTS State: SUCCEEDED
 Phase context status code:  Message: 
 Error in UPLOAD_ARTIFACTS phase: [coverage_tests: [report files not
 found in build]]

如何正确创建报告？

Answer 1

正如@TeejayBruno 在评论中指出的那样，我错过了所需的标志。

当我使用时（其余文件不变）

- python -m pytest --junitxml=unittests.xml --cov-report=xml --cov=ronwo --cov-branch

一切如预期。