def test_returns_filtered_data_lazily(self):
result = lineflow.filter(lambda x: x % 2 == 0, self.data, lazy=True)
self.assertIsInstance(result, filter)
expected = [x for x in self.data if x % 2 == 0]
for x, y in zip(result, expected):
self.assertEqual(x, y)
def test_returns_filtered_data_eagerly(self):
result = lineflow.filter(lambda x: x % 2 == 0, self.data)
expected = [x for x in self.data if x % 2 == 0]
self.assertListEqual(result, expected)