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import unittest
from reactivex import operators as ops
from reactivex.testing import ReactiveTest, TestScheduler
on_next = ReactiveTest.on_next
on_completed = ReactiveTest.on_completed
on_error = ReactiveTest.on_error
subscribe = ReactiveTest.subscribe
subscribed = ReactiveTest.subscribed
disposed = ReactiveTest.disposed
created = ReactiveTest.created
class TestPairwise(unittest.TestCase):
def test_pairwise_empty(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(180, 5), on_completed(210))
def create():
return xs.pipe(ops.pairwise())
results = scheduler.start(create)
assert results.messages == [on_completed(210)]
assert xs.subscriptions == [subscribe(200, 210)]
def test_pairwise_single(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(180, 5), on_next(210, 4), on_completed(220)
)
def create():
return xs.pipe(ops.pairwise())
results = scheduler.start(create)
assert results.messages == [on_completed(220)]
assert xs.subscriptions == [subscribe(200, 220)]
def test_pairwise_completed(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(180, 5),
on_next(210, 4),
on_next(240, 3),
on_next(290, 2),
on_next(350, 1),
on_completed(360),
)
def create():
return xs.pipe(ops.pairwise())
results = scheduler.start(create)
assert results.messages == [
on_next(240, (4, 3)),
on_next(290, (3, 2)),
on_next(350, (2, 1)),
on_completed(360),
]
assert xs.subscriptions == [subscribe(200, 360)]
def test_pairwise_not_completed(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(180, 5),
on_next(210, 4),
on_next(240, 3),
on_next(290, 2),
on_next(350, 1),
)
def create():
return xs.pipe(ops.pairwise())
results = scheduler.start(create)
assert results.messages == [
on_next(240, (4, 3)),
on_next(290, (3, 2)),
on_next(350, (2, 1)),
]
assert xs.subscriptions == [subscribe(200, 1000)]
def test_pairwise_error(self):
error = Exception()
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(180, 5),
on_next(210, 4),
on_next(240, 3),
on_error(290, error),
on_next(350, 1),
on_completed(360),
)
def create():
return xs.pipe(ops.pairwise())
results = scheduler.start(create)
assert results.messages == [on_next(240, (4, 3)), on_error(290, error)]
assert xs.subscriptions == [subscribe(200, 290)]
def test_pairwise_disposed(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(180, 5),
on_next(210, 4),
on_next(240, 3),
on_next(290, 2),
on_next(350, 1),
on_completed(360),
)
def create():
return xs.pipe(ops.pairwise())
results = scheduler.start(create, disposed=280)
assert results.messages == [on_next(240, (4, 3))]
assert xs.subscriptions == [subscribe(200, 280)]
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