def test_dispatch_without_existin_object(self, mock_super):
view = views.SingleObjectMixin()
view.get_object = MagicMock(return_value='new_object')
view.dispatch()
mock_super().dispatch.assert_called_with()
self.assertEqual(view.object, 'new_object',
"view.object should be changed")
self.assertTrue(view.get_object.called,
"view.get_object() should be called")
def test_dispatch_with_existin_object(self, mock_super):
view = views.SingleObjectMixin()
view.object = 'old_object'
view.get_object = MagicMock()
view.dispatch()
mock_super().dispatch.assert_called_with()
self.assertEqual(view.object, 'old_object',
"view.object should not be changed")
self.assertFalse(view.get_object.called,
"view.get_object() should not be called")
def test_get_object_cache(self, mock_super):
"""
Test that the method get_object caches his result.
Tests that get_object from the django view is only called once, even if
get_object on our class is called twice.
"""
view = views.SingleObjectMixin()
view.get_object()
view.get_object()
mock_super().get_object.assert_called_once_with()