Automated testing is an extremely useful bug-killing tool for the modern\nweb developer. You can use a collection of tests -- a test suite -- to\nsolve, or avoid, a number of problems:
\n当你编写新代码时，你可以利用测试确保代码按照期望的方式运行。
当你重构或修改旧代码，你可以利用测试来确保你的修改不会使应用运行出错。
Testing a web application is a complex task, because a web application is made\nof several layers of logic -- from HTTP-level request handling, to form\nvalidation and processing, to template rendering. With Django's test-execution\nframework and assorted utilities, you can simulate requests, insert test data,\ninspect your application's output and generally verify your code is doing what\nit should be doing.
\n在 Django 中编写测试的首选方式是使用 Python 标准库中内置的 unittest 模块。这一点在 编写并运行测试 文档中有详细介绍。
你也可以使用 另一个 Python 测试框架；Django 提供了用于这种集成的 API 和工具。这在 进阶测试主题 的 使用不同的测试框架 章节中有介绍。
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