def test_chained_transducers(self):
result = transduce(transducer=compose(mapping(lambda x: x * x),
filtering(lambda x: x % 5 != 0),
taking(6),
dropping_while(lambda x: x < 15),
distinct()),
reducer=appending(),
iterable=range(20))
self.assertSequenceEqual(result, [16, 36, 49])
def test_chained_transducers(self):
result = transduce(transducer=compose(
mapping(lambda x: x*x),
filtering(lambda x: x % 5 != 0),
taking(6),
dropping_while(lambda x: x < 15),
distinct()),
reducer=appending(),
iterable=range(20))
self.assertSequenceEqual(result, [16, 36, 49])
def test_chained_transducers(self):
result = transduce(transducer=compose(
mapping(lambda x: x*x),
filtering(lambda x: x % 5 != 0),
taking(6),
dropping_while(lambda x: x < 15),
distinct()),
iterable=range(20))
expected = [16, 36, 49]
for r, e in zip(result, expected):
self.assertEqual(r, e)
def test_chained_transducers(self):
result = transduce(
transducer=compose(
mapping(lambda x: x * x),
filtering(lambda x: x % 5 != 0),
taking(6),
dropping_while(lambda x: x < 15),
distinct(),
),
iterable=range(20),
)
expected = [16, 36, 49]
for r, e in zip(result, expected):
self.assertEqual(r, e)
def test_taking_validation(self):
with self.assertRaises(ValueError):
transduce(transducer=taking(-3),
reducer=appending(),
iterable=[2, 4, 5, 8, 10])
def test_taking(self):
result = transduce(transducer=taking(3),
reducer=appending(),
iterable=[2, 4, 5, 8, 10])
self.assertListEqual(result, [2, 4, 5])
def test_taking_validation(self):
with self.assertRaises(ValueError):
transduce(transducer=taking(-3),
reducer=appending(),
iterable=[2, 4, 5, 8, 10])
def test_taking(self):
result = transduce(transducer=taking(3),
reducer=appending(),
iterable=[2, 4, 5, 8, 10])
self.assertListEqual(result, [2, 4, 5])