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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 RxException(Exception):
pass
# Helper function for raising exceptions within lambdas
def _raise(ex):
raise RxException(ex)
class TestThrottleFirst(unittest.TestCase):
def test_throttle_first_completed(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(150, 1),
on_next(210, 2),
on_next(250, 3),
on_next(310, 4),
on_next(350, 5),
on_next(410, 6),
on_next(450, 7),
on_completed(500),
)
def create():
return xs.pipe(ops.throttle_first(200))
results = scheduler.start(create=create)
assert results.messages == [on_next(210, 2), on_next(410, 6), on_completed(500)]
assert xs.subscriptions == [subscribe(200, 500)]
def test_throttle_first_never(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(150, 1))
def create():
return xs.pipe(ops.throttle_first(200))
results = scheduler.start(create=create)
assert results.messages == []
assert xs.subscriptions == [subscribe(200, 1000)]
def test_throttle_first_empty(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(150, 1), on_completed(500))
def create():
return xs.pipe(ops.throttle_first(200))
results = scheduler.start(create=create)
assert results.messages == [on_completed(500)]
assert xs.subscriptions == [subscribe(200, 500)]
def test_throttle_first_error(self):
error = RxException()
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(150, 1),
on_next(210, 2),
on_next(250, 3),
on_next(310, 4),
on_next(350, 5),
on_error(410, error),
on_next(450, 7),
on_completed(500),
)
def create():
return xs.pipe(ops.throttle_first(200))
results = scheduler.start(create=create)
assert results.messages == [on_next(210, 2), on_error(410, error)]
assert xs.subscriptions == [subscribe(200, 410)]
def test_throttle_first_no_end(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(150, 1),
on_next(210, 2),
on_next(250, 3),
on_next(310, 4),
on_next(350, 5),
on_next(410, 6),
on_next(450, 7),
)
def create():
return xs.pipe(ops.throttle_first(200))
results = scheduler.start(create=create)
assert results.messages == [on_next(210, 2), on_next(410, 6)]
assert xs.subscriptions == [subscribe(200, 1000)]
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