Fixed #24965 -- Made LiveServerTestCase.live_server_url accessible from class

tests/utils_tests/test_decorators.py

@@ -2,7 +2,7 @@ from django.http import HttpResponse
 from django.template import engines
 from django.template.response import TemplateResponse
 from django.test import RequestFactory, SimpleTestCase
-from django.utils.decorators import decorator_from_middleware
+from django.utils.decorators import classproperty, decorator_from_middleware
 
 
 class ProcessViewMiddleware(object):
@@ -107,3 +107,41 @@ class DecoratorFromMiddlewareTests(SimpleTestCase):
         self.assertTrue(getattr(request, 'process_response_reached', False))
         # Check that process_response saw the rendered content
         self.assertEqual(request.process_response_content, b"Hello world")
+
+
+class ClassPropertyTest(SimpleTestCase):
+    def test_getter(self):
+        class Foo(object):
+            foo_attr = 123
+
+            def __init__(self):
+                self.foo_attr = 456
+
+            @classproperty
+            def foo(cls):
+                return cls.foo_attr
+
+        class Bar(object):
+            bar = classproperty()
+
+            @bar.getter
+            def bar(cls):
+                return 123
+
+        self.assertEqual(Foo.foo, 123)
+        self.assertEqual(Foo().foo, 123)
+        self.assertEqual(Bar.bar, 123)
+        self.assertEqual(Bar().bar, 123)
+
+    def test_override_getter(self):
+        class Foo(object):
+            @classproperty
+            def foo(cls):
+                return 123
+
+            @foo.getter
+            def foo(cls):
+                return 456
+
+        self.assertEqual(Foo.foo, 456)
+        self.assertEqual(Foo().foo, 456)