Visual Studio 2019中的python unittest下无测试

Question

我在Visual Studio 2019（Version16.3.9）中有一个现有的python项目，其中包含在Visual Studio 2017下为unittest.py创建的单元测试。我已经将项目配置为unittest，因为在Visual Studio 2019中需要这样做： >

但是没有显示单元测试。

但是我遇到了以下错误：

   File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\run_adapter.py", line 17, in <module>
    tool, cmd, subargs, toolargs = parse_args()
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\__main__.py", line 81, in parse_args
    subsub = add_subparser(cmdname, toolname, subsubs)
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\__main__.py", line 26, in pytest_add_cli_subparser
    from . import pytest
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\__init__.py", line 7, in <module>
    from ._discovery import discover
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\_discovery.py", line 31, in <module>
    patch_translate_non_printable()
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\_discovery.py", line 15, in patch_translate_non_printable
    translate_non_printable =  getattr(_pytest.compat, "_translate_non_printable")
AttributeError: module '_pytest.compat' has no attribute '_translate_non_printable'

Answer 1

您可以检查在“测试”下的输出窗口中是否有传递给run_adapter.py的参数，并确保在其中发现unittest 吗？

示例

xxx\EXTENSIONS\MICROSOFT CORPORATION\PYTHON\16.0.0\PythonFiles\testing_tools\run_adapter.py discover unittest --output-file xx\Local\Temp\tmpF743.tmp -- . test*.py

您的环境中还安装了pytest吗？如果是哪个版本？