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5864834fa5
git-svn-id: http://code.djangoproject.com/svn/django/trunk@14311 bcc190cf-cafb-0310-a4f2-bffc1f526a37
186 lines
6.2 KiB
Python
186 lines
6.2 KiB
Python
from sys import version_info
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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 2.4 fallback.
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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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from django.http import HttpResponse, HttpRequest
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from django.utils.decorators import method_decorator
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from django.utils.functional import allow_lazy, lazy, memoize
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from django.utils.unittest import TestCase
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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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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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# Apply user_passes_test twice to check #9474
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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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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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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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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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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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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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my_view_cached = cache_page(my_view, 123)
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self.assertEqual(my_view_cached(HttpRequest()), "response")
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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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my_view_cached3 = cache_page(my_view)
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self.assertEqual(my_view_cached3(HttpRequest()), "response")
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my_view_cached4 = cache_page()(my_view)
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self.assertEqual(my_view_cached4(HttpRequest()), "response")
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# For testing method_decorator, a decorator that assumes a single argument.
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# We will get type arguments if there is a mismatch in the number of arguments.
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def simple_dec(func):
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def wrapper(arg):
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return func("test:" + arg)
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return wraps(func)(wrapper)
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simple_dec_m = method_decorator(simple_dec)
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# For testing method_decorator, two decorators that add an attribute to the function
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def myattr_dec(func):
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def wrapper(*args, **kwargs):
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return func(*args, **kwargs)
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wrapper.myattr = True
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return wraps(func)(wrapper)
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myattr_dec_m = method_decorator(myattr_dec)
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def myattr2_dec(func):
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def wrapper(*args, **kwargs):
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return func(*args, **kwargs)
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wrapper.myattr2 = True
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return wraps(func)(wrapper)
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myattr2_dec_m = method_decorator(myattr2_dec)
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class MethodDecoratorTests(TestCase):
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"""
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Tests for method_decorator
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"""
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def test_preserve_signature(self):
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class Test(object):
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@simple_dec_m
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def say(self, arg):
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return arg
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self.assertEqual("test:hello", Test().say("hello"))
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def test_preserve_attributes(self):
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# Sanity check myattr_dec and myattr2_dec
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@myattr_dec
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@myattr2_dec
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def func():
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pass
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self.assertEqual(getattr(func, 'myattr', False), True)
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self.assertEqual(getattr(func, 'myattr2', False), True)
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# Now check method_decorator
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class Test(object):
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@myattr_dec_m
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@myattr2_dec_m
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def method(self):
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"A method"
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pass
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self.assertEqual(getattr(Test().method, 'myattr', False), True)
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self.assertEqual(getattr(Test().method, 'myattr2', False), True)
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self.assertEqual(getattr(Test.method, 'myattr', False), True)
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self.assertEqual(getattr(Test.method, 'myattr2', False), True)
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self.assertEqual(Test.method.__doc__, 'A method')
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self.assertEqual(Test.method.im_func.__name__, 'method')
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