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Pytest 和 pytest-cov 引发 CoverageException

[英]Pytest and pytest-cov raise CoverageException

原文 2020-06-08 01:29:00 8 1 python/ pytest/ pytest-cov

After executing my test suite using Pytest + Pytest-cov I'm getting the following error:使用 Pytest + Pytest-cov 执行我的测试套件后，我收到以下错误：

coverage.misc.CoverageException: Couldn't use data file '/usr/local/myappname/.coverage': Looks like a coverage 4.x data file. coverage.misc.CoverageException：无法使用数据文件“/usr/local/myappname/.coverage”：看起来像覆盖率 4.x 数据文件。 Are you mixing versions of coverage?你在混合不同的覆盖范围吗？

It is weird because fails on my local dev environment but works fine in the testing environment and there is no change in the configuration.这很奇怪，因为在我的本地开发环境中失败但在测试环境中工作正常并且配置没有变化。

1 个解决方案

Found the issue.发现问题。 pytest-cov uses under the hood coverage and it has updated the local coverage file to sqlite https://coverage.readthedocs.io/en/coverage-5.1/changes.html#version-5-0a6-2019-07-16 . pytest-cov 使用引擎盖覆盖，它已将本地覆盖文件更新为 sqlite https://coverage.readthedocs.io/en/coverage-5.1/changes.html#version-5-0a6-2019-07-16

To solve the issue is as simple as remove the old.coverage file ( rm.coverage ) and re-run your test case.解决这个问题很简单，只需删除 old.coverage 文件 ( rm.coverage ) 并重新运行您的测试用例。

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pytest-cov 显示没有覆盖 - pytest-cov showing no coverage

为什么代码覆盖率不是100％？ pytest冠状病毒 - Why code coverage not 100%? pytest-cov

运行 pytest 和 pytest-cov 时忽略特定文件（不是目录） - Ignore specific files (not directory) while running pytest and pytest-cov

对于带有 pytest-cov 的 pytest：如何为覆盖版本指定 parallel=True >= 5 - For pytest with pytest-cov: how to specify parallel=True for coverage version >= 5

pytest-cov始终显示0的Tavern测试覆盖率 - pytest-cov always show 0 coverage for Tavern test

从 pytest-cov output 中剥离 tox 路径 - Strip tox path from pytest-cov output

如何从 pytest-cov 获取每个子包的聚合覆盖率？ - How to obtain aggregated coverage per subpackage from pytest-cov?

从 PyCharm 内部使用 pytest-cov 插件 - Using pytest-cov plugin from inside PyCharm

Sonar的诗歌和Pytest-cov：如何调和引用？ - Poetry and Pytest-cov with Sonar: how to reconcile the references?

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