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import unittest
import reactivex
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 TestTimer(unittest.TestCase):
def test_oneshot_timer_date_basic(self):
scheduler = TestScheduler()
date = scheduler.to_datetime(250.0)
def create():
return reactivex.timer(duetime=date)
results = scheduler.start(create)
assert results.messages == [on_next(250.0, 0), on_completed(250.0)]
def test_oneshot_timer_date_passed(self):
scheduler = TestScheduler()
date = scheduler.to_datetime(90.0)
def create():
return reactivex.timer(date)
results = scheduler.start(create)
assert results.messages == [on_next(200, 0), on_completed(200)]
def test_oneshot_timer_date_disposed(self):
scheduler = TestScheduler()
date = scheduler.to_datetime(1010.0)
def create():
return reactivex.timer(date)
results = scheduler.start(create)
assert results.messages == []
def test_oneshot_timer_date_observer_throws(self):
scheduler = TestScheduler()
date = scheduler.to_datetime(250.0)
xs = reactivex.timer(date)
xs.subscribe(lambda x: _raise("ex"), scheduler=scheduler)
self.assertRaises(RxException, scheduler.start)
def test_oneshot_timer_timespan_basic(self):
scheduler = TestScheduler()
def create():
return reactivex.timer(duetime=300)
results = scheduler.start(create)
assert results.messages == [on_next(500, 0), on_completed(500)]
def test_oneshot_timer_timespan_zero(self):
scheduler = TestScheduler()
def create():
return reactivex.timer(0)
results = scheduler.start(create)
assert results.messages == [on_next(200, 0), on_completed(200)]
def test_oneshot_timer_timespan_negative(self):
scheduler = TestScheduler()
def create():
return reactivex.timer(-1)
results = scheduler.start(create)
assert results.messages == [on_next(200, 0), on_completed(200)]
def test_oneshot_timer_timespan_disposed(self):
scheduler = TestScheduler()
def create():
return reactivex.timer(1000)
results = scheduler.start(create)
assert results.messages == []
def test_oneshot_timer_timespan_observer_throws(self):
scheduler1 = TestScheduler()
xs = reactivex.timer(11)
xs.subscribe(lambda x: _raise("ex"), scheduler=scheduler1)
self.assertRaises(RxException, scheduler1.start)
scheduler2 = TestScheduler()
ys = reactivex.timer(1, period=None)
ys.subscribe(on_completed=lambda: _raise("ex"), scheduler=scheduler2)
self.assertRaises(RxException, scheduler2.start)
def test_periodic_timer_basic(self):
scheduler = TestScheduler()
def create():
return reactivex.timer(duetime=300, period=400)
results = scheduler.start(create)
assert results.messages == [on_next(500, 0), on_next(900, 1)]
def test_periodic_timer_equal_time_and_period(self):
scheduler = TestScheduler()
def create():
return reactivex.timer(duetime=300, period=300)
results = scheduler.start(create)
assert results.messages == [on_next(500, 0), on_next(800, 1)]
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