使用覆盖，我该如何测试这行？ [英] Using coverage, how do I test this line?

问题描述

我有一个简单的测试：

class ModelTests(TestCase):

    def test_method(self):
        instance = Activity(title="Test")
        self.assertEqual(instance.get_approved_member_count(), 0)

我的问题是，覆盖率仍然显示 get_approved_member_count 行未测试：

My problem is that coverage still shows get_approved_member_count line as NOT tested:

我满足以上的覆盖面？

How do I satisfy the above for coverage?

要运行测试，我使用Django Nose with Coverage：

To run the tests I'm using Django Nose with Coverage:

TEST_RUNNER = 'django_nose.NoseTestSuiteRunner'

NOSE_ARGS = [
    '--with-coverage',
    '--cover-html',
    '--cover-package=apps.users,apps.activities',
]

python manage.py test
/Users/user/Documents/workspace/api/env/lib/python3.4/importlib/_bootstrap.py:321: RemovedInDjango19Warning: django.contrib.contenttypes.generic is deprecated and will be removed in Django 1.9. Its contents have been moved to the fields, forms, and admin submodules of django.contrib.contenttypes.
  return f(*args, **kwds)

/Users/user/Documents/workspace/api/env/lib/python3.4/importlib/_bootstrap.py:321: RemovedInDjango19Warning: The utilities in django.db.models.loading are deprecated in favor of the new application loading system.
  return f(*args, **kwds)

nosetests --with-coverage --cover-html --cover-package=apps.users,apps.activities --verbosity=1




Name                                                      Stmts   Miss  Cover   Missing
---------------------------------------------------------------------------------------
apps.activities                                          0      0   100%
apps.activities.admin                                    8      8     0%   1-14
activities.migrations                               0      0   100%
activities.migrations.0001_initial                  9      0   100%
apps.activities.urls                                     8      0   100%


etc etc etc
---------------------------------------------------------------------------------------
TOTAL                                                       670    232    65%
----------------------------------------------------------------------
Ran 79 tests in 17.101s

推荐答案

覆盖报告显示正在调用该方法（第80行为绿色）。但它也表明它从未被定义（第75行是红色的）。

The coverage report shows that the method is being called (line 80 is green). But it also shows that it was never defined (line 75 is red).

这是一个经常出现覆盖率太晚的问题。解决这个问题的最简单的方法是使用覆盖来运行测试运行器，而不是使用测试运行器来运行覆盖：

This is a classic problem of starting coverage too late. The simplest way to fix this is to use coverage to run your test runner, instead of using the test runner to run coverage:

$ coverage run -m nose --verbosity=1

UPDATED：用于您的原始命令： / p>

UPDATED: to use with your original command:

$ coverage run manage.py test

，但您首先要卸载鼻子覆盖插件。

but you'd want to uninstall the nose coverage plugin first.

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