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import unittest
import reactivex
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 TestAmb(unittest.TestCase):
def test_amb_never2(self):
scheduler = TestScheduler()
l = reactivex.never()
r = reactivex.never()
def create():
return l.pipe(ops.amb(r))
results = scheduler.start(create)
assert results.messages == []
def test_amb_never3(self):
scheduler = TestScheduler()
n1 = reactivex.never()
n2 = reactivex.never()
n3 = reactivex.never()
def create():
return reactivex.amb(n1, n2, n3)
results = scheduler.start(create)
assert results.messages == []
def test_amb_never_empty(self):
scheduler = TestScheduler()
r_msgs = [on_next(150, 1), on_completed(225)]
n = reactivex.never()
e = scheduler.create_hot_observable(r_msgs)
def create():
return n.pipe(ops.amb(e))
results = scheduler.start(create)
assert results.messages == [on_completed(225)]
def test_amb_empty_never(self):
scheduler = TestScheduler()
r_msgs = [on_next(150, 1), on_completed(225)]
n = reactivex.never()
e = scheduler.create_hot_observable(r_msgs)
def create():
return e.pipe(ops.amb(n))
results = scheduler.start(create)
assert results.messages == [on_completed(225)]
def test_amb_regular_should_dispose_loser(self):
scheduler = TestScheduler()
msgs1 = [on_next(150, 1), on_next(210, 2), on_completed(240)]
msgs2 = [on_next(150, 1), on_next(220, 3), on_completed(250)]
source_not_disposed = [False]
o1 = scheduler.create_hot_observable(msgs1)
def action():
source_not_disposed[0] = True
o2 = scheduler.create_hot_observable(msgs2).pipe(
ops.do_action(on_next=action),
)
def create():
return o1.pipe(ops.amb(o2))
results = scheduler.start(create)
assert results.messages == [on_next(210, 2), on_completed(240)]
assert not source_not_disposed[0]
def test_amb_winner_throws(self):
ex = "ex"
scheduler = TestScheduler()
msgs1 = [on_next(150, 1), on_next(210, 2), on_error(220, ex)]
msgs2 = [on_next(150, 1), on_next(220, 3), on_completed(250)]
source_not_disposed = [False]
o1 = scheduler.create_hot_observable(msgs1)
def action():
source_not_disposed[0] = True
o2 = scheduler.create_hot_observable(msgs2).pipe(
ops.do_action(on_next=action),
)
def create():
return o1.pipe(ops.amb(o2))
results = scheduler.start(create)
assert results.messages == [on_next(210, 2), on_error(220, ex)]
assert not source_not_disposed[0]
def test_amb_loser_throws(self):
ex = "ex"
scheduler = TestScheduler()
msgs1 = [on_next(150, 1), on_next(220, 2), on_error(230, ex)]
msgs2 = [on_next(150, 1), on_next(210, 3), on_completed(250)]
source_not_disposed = [False]
def action():
source_not_disposed[0] = True
o1 = scheduler.create_hot_observable(msgs1).pipe(
ops.do_action(on_next=action),
)
o2 = scheduler.create_hot_observable(msgs2)
def create():
return o1.pipe(ops.amb(o2))
results = scheduler.start(create)
assert results.messages == [on_next(210, 3), on_completed(250)]
assert not source_not_disposed[0]
def test_amb_throws_before_election(self):
ex = "ex"
scheduler = TestScheduler()
msgs1 = [on_next(150, 1), on_error(210, ex)]
msgs2 = [on_next(150, 1), on_next(220, 3), on_completed(250)]
source_not_disposed = [False]
o1 = scheduler.create_hot_observable(msgs1)
def action():
source_not_disposed[0] = True
o2 = scheduler.create_hot_observable(msgs2).pipe(
ops.do_action(on_next=action),
)
def create():
return o1.pipe(ops.amb(o2))
results = scheduler.start(create)
assert results.messages == [on_error(210, ex)]
assert not source_not_disposed[0]
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