def test_ImageDict_provides_key_value_pairs(self):
d = ImageDict()
obj1 = cv2.imread(path.join(_this_path, 'data', 'object.png'))
mask1 = cv2.imread(path.join(_this_path, 'data', 'object_mask.png'))
obj2 = cv2.imread(path.join(_this_path, 'data', 'different_object.png'))
value_1 = 1
value_2 = 2
d[obj1, mask1] = value_1
d[obj2] = value_2
key1_spec = (obj1, mask1)
key2_spec = (obj2, None)
items_specification = ((key1_spec, value_1), (key2_spec, value_2))
items_by_iteritems = d.iteritems()
items_by_items = d.items()
self.assertItemsEqual(list(items_by_iteritems), items_specification)
self.assertItemsEqual(items_by_items, items_specification)
