Close file after tests added in 945e033a.

        obj2.normal.save("django_test.txt", ContentFile("more content"))

        self.assertEqual(obj2.normal.name, "tests/django_test_1.txt")

        self.assertEqual(obj2.normal.size, 12)

        obj2.normal.close()

        # Push the objects into the cache to make sure they pickle properly

        cache.set("obj1", obj1)

        obj2.delete()

        obj2.normal.save("django_test.txt", ContentFile("more content"))

        self.assertEqual(obj2.normal.name, "tests/django_test_2.txt")

        obj2.normal.close()

        # Multiple files with the same name get _N appended to them.

        objs = [Storage() for i in range(3)]

        obj4 = Storage()

        obj4.random.save("random_file", ContentFile("random content"))

        self.assertTrue(obj4.random.name.endswith("/random_file"))

        obj4.random.close()

        # upload_to can be empty, meaning it does not use subdirectory.

        obj5 = Storage()

        obj5.empty.save('django_test.txt', ContentFile('more content'))

        self.assertEqual(obj5.empty.name, "./django_test.txt")

        self.assertEqual(obj5.empty.read(), b"more content")

        obj5.empty.close()

    def test_file_object(self):

        # Create sample file