def test_merge_values_one_array(self): self.assertEqual(merge_values(['A'], 'B'), ['A', 'B']) self.assertEqual(merge_values('A', ['B']), ['A', 'B'])
def test_merge_values_both_arrays(self): self.assertEqual(merge_values(['A', 'B'], ['C', 'D']), ['A', 'B', 'C', 'D'])
def test_merge_values_one_none(self): self.assertEqual(merge_values(['A'], None), ['A']) self.assertEqual(merge_values(None, ['A']), ['A'])