def test_normal(self):
actual = field_masks._normalize_paths([
('a', ),
('b', ),
])
expected = {('a', ), ('b', )}
self.assertEqual(actual, expected)
def test_redundancy_second_level(self):
actual = field_masks._normalize_paths([
('a', ),
('a', 'b', 'c'),
])
expected = {('a', )}
self.assertEqual(actual, expected)
def test_empty(self):
actual = field_masks._normalize_paths([])
expected = set()
self.assertEqual(actual, expected)