Python 单元测试去哪里了?

本文介绍了Python 单元测试去哪里了?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

如果您正在编写库或应用程序，单元测试文件在哪里?

If you're writing a library, or an app, where do the unit test files go?

将测试文件与主应用程序代码分开很好，但将它们放在应用程序根目录内的tests"子目录中很尴尬，因为这会使导入要测试的模块变得更加困难.

It's nice to separate the test files from the main app code, but it's awkward to put them into a "tests" subdirectory inside of the app root directory, because it makes it harder to import the modules that you'll be testing.

这里有最佳实践吗?

推荐答案

对于文件module.py，单元测试一般应该叫test_module.py，如下Pythonic 命名约定.

For a file module.py, the unit test should normally be called test_module.py, following Pythonic naming conventions.

有几个普遍接受的地方放置test_module.py:

There are several commonly accepted places to put test_module.py:

在与 module.py 相同的目录中.

在../tests/test_module.py(与代码目录同级).

在tests/test_module.py(代码目录下的一级).

In the same directory as module.py.

In ../tests/test_module.py (at the same level as the code directory).

In tests/test_module.py (one level under the code directory).

我更喜欢 #1，因为它很容易找到测试并导入它们.您使用的任何构建系统都可以轻松配置为运行以 test_ 开头的文件.实际上，用于测试发现的 默认 unittest 模式是 test*.py.

I prefer #1 for its simplicity of finding the tests and importing them. Whatever build system you're using can easily be configured to run files starting with test_. Actually, the default unittest pattern used for test discovery is test*.py.