def test_raises_on_duplicates_across_keys(self):
with self.assertRaises(ValueError):
mergic.check({1: [1], 2: [1]})
def test_returns_number_of_values(self):
partition = {1: [1], 2: [2, 3], 3: [4]}
self.assertEqual(mergic.check(partition), 4)
def test_raises_on_duplicate_in_value_list(self):
with self.assertRaises(ValueError):
mergic.check({1: [1, 1]})
