GitHub Actions复用.NET构建产物运行集成测试的路径与参数问题

初始问题 #

构建工作流片段 #

- name: Upload build artifacts
  uses: actions/upload-artifact@v4.3.1
  with:
    name: dll-artifacts
    path: '**/bin/Release/**/*.dll'

测试工作流片段 #

- name: Download build artifacts
  uses: actions/download-artifact@v4.1.4
  with:
    name: dll-artifacts
    path: build

- name: Run Integration Tests
  run: dotnet test --configuration Release --no-build ~/build/MyProject.IntegrationTests.dll

出现的错误 #

The argument /home/runner/build/MyProject.IntegrationTests.dll is invalid. Please use the /help option to check the list of valid arguments.
同时提示：The following arguments have been ignored : "--configuration Release --no-build"

更新后的问题 #

修复路径后，运行测试DLL时又出现新错误：

Testhost process for source(s) exited with error: A fatal error was encountered. The library 'libhostpolicy.so' required to execute the application was not found. Failed to run as a self-contained app. - The application was run as a self-contained app because 'testhost.runtimeconfig.json' was not found.

解决步骤 #

1. 修正dotnet test的参数与路径 #

dotnet test要求全局参数放在目标文件之前，且GitHub Runner中不建议用~/简写路径，直接用相对路径或工作目录变量更可靠。

修正后的测试命令：

dotnet test --configuration Release --no-build ./build/MyProject.IntegrationTests.dll

用工作目录变量确保路径绝对准确：

dotnet test --configuration Release --no-build ${{ github.workspace }}/build/MyProject.IntegrationTests.dll

2. 补充上传测试必需的依赖文件 #

之前只上传了DLL，导致测试运行时缺少配置文件和依赖库。修改构建工作流的上传步骤，包含所有必要文件：

方式一：明确列出必要文件类型

- name: Upload build artifacts
  uses: actions/upload-artifact@v4.3.1
  with:
    name: test-artifacts
    path: |
      **/bin/Release/**/*.dll
      **/bin/Release/**/*.json
      **/bin/Release/**/*.so
      **/bin/Release/**/*.deps.json
      **/bin/Release/**/*.runtimeconfig.json

方式二：直接上传整个Release目录（更简单）

如果不需要过滤文件，直接上传整个Release输出目录：

- name: Upload build artifacts
  uses: actions/upload-artifact@v4.3.1
  with:
    name: test-artifacts
    path: '**/bin/Release/'

3. 匹配实际目录结构调整测试路径 #

下载产物后的路径结构和上传时一致，需根据实际情况调整测试命令路径。比如测试DLL原本在bin/Release/net8.0/MyProject.IntegrationTests.dll，下载后路径为build/net8.0/MyProject.IntegrationTests.dll，对应的测试命令为：

dotnet test --configuration Release --no-build ./build/net8.0/MyProject.IntegrationTests.dll

内容的提问来源于stack exchange，提问作者freshbm