def test_split_with_state_monad(self):
value = 7
arrow = kleisli_split(state_return)
state = KleisliArrow.runKleisli(arrow, value)
result = State.runState(state, list())
target = ((value, value), list())
self.assertEquals(target, result)
def test_unsplit_with_maybe_monad(self):
value = 8
k1 = kleisli_split(just_return)
f = lambda x, y: x * y
k2 = kleisli_unsplit(just_return, f)
arrow = k1 >> k2
result = KleisliArrow.runKleisli(arrow, value)
target = Just(f(value, value))
self.assertEquals(target, result)
def test_unsplit_with_state_monad(self):
value = 7
k1 = kleisli_split(state_return)
f = lambda x, y: x * y
k2 = kleisli_unsplit(state_return, f)
arrow = k1 >> k2
state = KleisliArrow.runKleisli(arrow, value)
result = State.runState(state, list())
target = (f(value, value), list())
self.assertEquals(target, result)
def test_split_with_maybe_monad(self):
value = 7
arrow = kleisli_split(just_return)
result = KleisliArrow.runKleisli(arrow, value)
target = Just((value, value))
self.assertEquals(target, result)