2008-02-25 14:02:35 +08:00
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from unittest import TestCase
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from sys import version_info
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2009-09-22 06:31:51 +08:00
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try:
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from functools import wraps
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except ImportError:
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from django.utils.functional import wraps # Python 2.3, 2.4 fallback.
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2008-02-25 14:02:35 +08:00
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2009-09-22 06:31:51 +08:00
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from django.http import HttpResponse, HttpRequest
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2008-02-25 14:02:35 +08:00
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from django.utils.functional import allow_lazy, lazy, memoize
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from django.views.decorators.http import require_http_methods, require_GET, require_POST
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from django.views.decorators.vary import vary_on_headers, vary_on_cookie
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from django.views.decorators.cache import cache_page, never_cache, cache_control
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2009-09-22 06:31:51 +08:00
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from django.utils.decorators import auto_adapt_to_methods
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2008-02-25 14:02:35 +08:00
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from django.contrib.auth.decorators import login_required, permission_required, user_passes_test
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from django.contrib.admin.views.decorators import staff_member_required
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def fully_decorated(request):
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"""Expected __doc__"""
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return HttpResponse('<html><body>dummy</body></html>')
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fully_decorated.anything = "Expected __dict__"
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# django.views.decorators.http
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fully_decorated = require_http_methods(["GET"])(fully_decorated)
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fully_decorated = require_GET(fully_decorated)
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fully_decorated = require_POST(fully_decorated)
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# django.views.decorators.vary
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fully_decorated = vary_on_headers('Accept-language')(fully_decorated)
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fully_decorated = vary_on_cookie(fully_decorated)
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# django.views.decorators.cache
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fully_decorated = cache_page(60*15)(fully_decorated)
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fully_decorated = cache_control(private=True)(fully_decorated)
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fully_decorated = never_cache(fully_decorated)
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# django.contrib.auth.decorators
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2009-04-02 00:17:38 +08:00
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# Apply user_passes_test twice to check #9474
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2008-02-25 14:02:35 +08:00
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fully_decorated = user_passes_test(lambda u:True)(fully_decorated)
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fully_decorated = login_required(fully_decorated)
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fully_decorated = permission_required('change_world')(fully_decorated)
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# django.contrib.admin.views.decorators
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fully_decorated = staff_member_required(fully_decorated)
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# django.utils.functional
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fully_decorated = memoize(fully_decorated, {}, 1)
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fully_decorated = allow_lazy(fully_decorated)
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fully_decorated = lazy(fully_decorated)
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class DecoratorsTest(TestCase):
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def test_attributes(self):
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"""
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Tests that django decorators set certain attributes of the wrapped
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function.
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"""
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# Only check __name__ on Python 2.4 or later since __name__ can't be
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# assigned to in earlier Python versions.
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if version_info[0] >= 2 and version_info[1] >= 4:
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self.assertEquals(fully_decorated.__name__, 'fully_decorated')
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self.assertEquals(fully_decorated.__doc__, 'Expected __doc__')
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self.assertEquals(fully_decorated.__dict__['anything'], 'Expected __dict__')
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2009-04-02 00:17:38 +08:00
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def test_user_passes_test_composition(self):
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"""
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Test that the user_passes_test decorator can be applied multiple times
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(#9474).
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"""
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def test1(user):
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user.decorators_applied.append('test1')
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return True
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def test2(user):
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user.decorators_applied.append('test2')
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return True
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def callback(request):
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return request.user.decorators_applied
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callback = user_passes_test(test1)(callback)
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callback = user_passes_test(test2)(callback)
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class DummyUser(object): pass
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class DummyRequest(object): pass
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request = DummyRequest()
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request.user = DummyUser()
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request.user.decorators_applied = []
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response = callback(request)
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self.assertEqual(response, ['test2', 'test1'])
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2009-09-22 06:31:51 +08:00
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def test_cache_page_new_style(self):
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"""
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Test that we can call cache_page the new way
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"""
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def my_view(request):
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return "response"
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my_view_cached = cache_page(123)(my_view)
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self.assertEqual(my_view_cached(HttpRequest()), "response")
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2009-09-29 05:54:54 +08:00
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my_view_cached2 = cache_page(123, key_prefix="test")(my_view)
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self.assertEqual(my_view_cached2(HttpRequest()), "response")
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2009-09-22 06:31:51 +08:00
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def test_cache_page_old_style(self):
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"""
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Test that we can call cache_page the old way
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"""
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def my_view(request):
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return "response"
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2009-09-27 03:39:42 +08:00
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my_view_cached = cache_page(my_view, 123)
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2009-09-22 06:31:51 +08:00
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self.assertEqual(my_view_cached(HttpRequest()), "response")
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2009-09-29 05:54:54 +08:00
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my_view_cached2 = cache_page(my_view, 123, key_prefix="test")
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self.assertEqual(my_view_cached2(HttpRequest()), "response")
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2009-09-22 06:31:51 +08:00
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class MethodDecoratorAdapterTests(TestCase):
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def test_auto_adapt_to_methods(self):
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"""
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Test that auto_adapt_to_methods actually works.
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"""
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# Need 2 decorators with auto_adapt_to_methods,
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# to check it plays nicely with composing itself.
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def my_decorator(func):
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def wrapped(*args, **kwargs):
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# need to ensure that the first arg isn't 'self'
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self.assertEqual(args[0], "test")
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return "my_decorator:" + func(*args, **kwargs)
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wrapped.my_decorator_custom_attribute = True
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return wraps(func)(wrapped)
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my_decorator = auto_adapt_to_methods(my_decorator)
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def my_decorator2(func):
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def wrapped(*args, **kwargs):
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# need to ensure that the first arg isn't 'self'
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self.assertEqual(args[0], "test")
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return "my_decorator2:" + func(*args, **kwargs)
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wrapped.my_decorator2_custom_attribute = True
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return wraps(func)(wrapped)
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my_decorator2 = auto_adapt_to_methods(my_decorator2)
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class MyClass(object):
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def my_method(self, *args, **kwargs):
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return "my_method:%r %r" % (args, kwargs)
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my_method = my_decorator2(my_decorator(my_method))
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obj = MyClass()
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self.assertEqual(obj.my_method("test", 123, name='foo'),
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"my_decorator2:my_decorator:my_method:('test', 123) {'name': 'foo'}")
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self.assertEqual(obj.my_method.__name__, 'my_method')
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self.assertEqual(getattr(obj.my_method, 'my_decorator_custom_attribute', False),
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True)
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self.assertEqual(getattr(obj.my_method, 'my_decorator2_custom_attribute', False),
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True)
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