mirror of
https://github.com/jazzband/django-analytical.git
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112 lines
3.3 KiB
Python
112 lines
3.3 KiB
Python
"""
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Testing utilities.
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"""
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from __future__ import with_statement
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from django.conf import settings, UserSettingsHolder
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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.template import Template, Context, RequestContext
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from django.test.testcases import TestCase
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from django.utils.functional import wraps
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class DeletedSettingDescriptor(object):
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def __get__(self, instance, owner):
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raise AttributeError("attribute not set")
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SETTING_DELETED = DeletedSettingDescriptor()
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# Backported adapted from Django trunk (r16377)
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class override_settings(object):
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"""
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Temporarily override Django settings.
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Acts as either a decorator, or a context manager. If it's a decorator it
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takes a function and returns a wrapped function. If it's a contextmanager
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it's used with the ``with`` statement. In either event entering/exiting
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are called before and after, respectively, the function/block is executed.
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"""
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def __init__(self, **kwargs):
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self.options = kwargs
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self.wrapped = settings._wrapped
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def __enter__(self):
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self.enable()
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def __exit__(self, exc_type, exc_value, traceback):
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self.disable()
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def __call__(self, test_func):
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from django.test import TestCase
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if isinstance(test_func, type) and issubclass(test_func, TestCase):
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class inner(test_func):
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def _pre_setup(innerself):
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self.enable()
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super(inner, innerself)._pre_setup()
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def _post_teardown(innerself):
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super(inner, innerself)._post_teardown()
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self.disable()
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else:
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@wraps(test_func)
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def inner(*args, **kwargs):
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with self:
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return test_func(*args, **kwargs)
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return inner
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def enable(self):
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override = UserSettingsHolder(settings._wrapped)
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for key, new_value in self.options.items():
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setattr(override, key, new_value)
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settings._wrapped = override
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def disable(self):
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settings._wrapped = self.wrapped
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def run_tests():
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"""
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Use the Django test runner to run the tests.
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"""
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from django.test.simple import DjangoTestSuiteRunner
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runner = DjangoTestSuiteRunner(verbosity=2)
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runner.run_tests(None)
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def with_apps(*apps):
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"""
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Class decorator that makes sure the passed apps are present in
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INSTALLED_APPS.
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"""
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apps_set = set(settings.INSTALLED_APPS)
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apps_set.update(apps)
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return override_settings(INSTALLED_APPS=list(apps_set))
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def without_apps(*apps):
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"""
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Class decorator that makes sure the passed apps are not present in
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INSTALLED_APPS.
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"""
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apps_list = [a for a in settings.INSTALLED_APPS if a not in apps]
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return override_settings(INSTALLED_APPS=apps_list)
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class TagTestCase(TestCase):
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"""
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Tests for a template tag.
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Adds support methods for testing template tags.
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"""
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def render_tag(self, library, tag, vars=None, request=None):
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if vars is None:
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vars = {}
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t = Template("{%% load %s %%}{%% %s %%}" % (library, tag))
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if request is not None:
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context = RequestContext(request, vars)
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else:
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context = Context(vars)
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return t.render(context)
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