没有数据库的 Django 单元测试 [英] django unit tests without a db

问题描述

是否有可能在不设置数据库的情况下编写 django 单元测试?我想测试不需要设置数据库的业务逻辑.虽然设置数据库很快，但在某些情况下我真的不需要它.

Is there a possibility to write django unittests without setting up a db? I want to test business logic which doesn't require the db to set up. And while it is fast to setup a db, I really don't need it in some situations.

推荐答案

您可以子类化 DjangoTestSuiteRunner 并覆盖 setup_databases 和 teardown_databases 方法来传递.

You can subclass DjangoTestSuiteRunner and override setup_databases and teardown_databases methods to pass.

创建一个新的设置文件并将 TEST_RUNNER 设置为您刚刚创建的新类.然后，当您运行测试时，使用 --settings 标志指定您的新设置文件.

Create a new settings file and set TEST_RUNNER to the new class you just created. Then when you're running your test, specify your new settings file with --settings flag.

这是我所做的:

创建一个与此类似的自定义测试服运行器:

Create a custom test suit runner similar to this:

from django.test.simple import DjangoTestSuiteRunner

class NoDbTestRunner(DjangoTestSuiteRunner):
  """ A test runner to test without database creation """

  def setup_databases(self, **kwargs):
    """ Override the database creation defined in parent class """
    pass

  def teardown_databases(self, old_config, **kwargs):
    """ Override the database teardown defined in parent class """
    pass

创建自定义设置:

from mysite.settings import *

# Test runner with no database creation
TEST_RUNNER = 'mysite.scripts.testrunner.NoDbTestRunner'

当您运行测试时，请按照以下方式运行它，并将 --settings 标志设置为您的新设置文件:

When you're running your tests, run it like the following with --settings flag set to your new settings file:

python manage.py test myapp --settings='no_db_settings'

更新:2018 年 4 月

自 Django 1.8 起，模块 django.test.simple.DjangoTestSuiteRunner 被移动到'django.test.runner.DiscoverRunner'.

Since Django 1.8, the module django.test.simple.DjangoTestSuiteRunner were moved to 'django.test.runner.DiscoverRunner'.

欲了解更多信息，请查看官方文档 关于自定义测试运行器的部分.

For more info check official doc section about custom test runners.

这篇关于没有数据库的 Django 单元测试的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！