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63 lines
2.0 KiB
Python
63 lines
2.0 KiB
Python
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# http://djangosnippets.org/snippets/1011/
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from django.conf import settings
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from django.core.management import call_command
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from django.db.models import loading
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from django.test import TestCase
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NO_SETTING = ('!', None)
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class TestSettingsManager(object):
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"""
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A class which can modify some Django settings temporarily for a
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test and then revert them to their original values later.
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Automatically handles resyncing the DB if INSTALLED_APPS is
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modified.
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"""
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def __init__(self):
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self._original_settings = {}
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def set(self, **kwargs):
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for k,v in kwargs.iteritems():
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self._original_settings.setdefault(k, getattr(settings, k,
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NO_SETTING))
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setattr(settings, k, v)
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if 'INSTALLED_APPS' in kwargs:
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self.syncdb()
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def syncdb(self):
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loading.cache.loaded = False
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call_command('syncdb', verbosity=0)
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def revert(self):
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for k,v in self._original_settings.iteritems():
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if v == NO_SETTING:
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delattr(settings, k)
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else:
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setattr(settings, k, v)
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if 'INSTALLED_APPS' in self._original_settings:
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self.syncdb()
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self._original_settings = {}
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class SettingsTestCase(TestCase):
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"""
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A subclass of the Django TestCase with a settings_manager
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attribute which is an instance of TestSettingsManager.
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Comes with a tearDown() method that calls
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self.settings_manager.revert().
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"""
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def __init__(self, *args, **kwargs):
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super(SettingsTestCase, self).__init__(*args, **kwargs)
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self.settings_manager = TestSettingsManager()
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def tearDown(self):
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self.settings_manager.revert()
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class TestModelsTestCase(SettingsTestCase):
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def setUp(self, *args, **kwargs):
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installed_apps = tuple(settings.INSTALLED_APPS) + ('djangorestframework.tests',)
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self.settings_manager.set(INSTALLED_APPS=installed_apps)
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