def test_int_keyed_int_valued_dicts(self):
a = {'a':1,'b':2,'c':3}
b = {'a':6,'b':5,'c':4}
expected_result = {'a':7,'b':7,'c':7}
self.assertEqual(join_dict(a, b, add), expected_result)
def test_string_keyed_int_valued_dicts(self):
a = {1:1,2:2,3:3,4:4,5:5,6:6}
b = {6:6,5:5,4:4,3:3,2:2,1:1}
expected_result = {1:2,2:4,3:6,4:8,5:10,6:12}
self.assertEqual(join_dict(a, b, add), expected_result)
