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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 TestSum(unittest.TestCase):
def test_sum_int32_empty(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(150, 1), on_completed(250))
def create():
return xs.pipe(ops.sum())
res = scheduler.start(create=create).messages
assert res == [on_next(250, 0), on_completed(250)]
def test_sum_int32_return(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(150, 1), on_next(210, 2), on_completed(250)
)
def create():
return xs.pipe(ops.sum())
res = scheduler.start(create=create).messages
assert res == [on_next(250, 2), on_completed(250)]
def test_sum_int32_some(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(150, 1),
on_next(210, 2),
on_next(220, 3),
on_next(230, 4),
on_completed(250),
)
def create():
return xs.pipe(ops.sum())
res = scheduler.start(create=create).messages
assert res == [on_next(250, 2 + 3 + 4), on_completed(250)]
def test_sum_int32_on_error(self):
ex = "ex"
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(150, 1), on_error(210, ex))
def create():
return xs.pipe(ops.sum())
res = scheduler.start(create=create).messages
assert res == [on_error(210, ex)]
def test_sum_int32_never(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(150, 1))
def create():
return xs.pipe(ops.sum())
res = scheduler.start(create=create).messages
assert res == []
def test_sum_mapper_regular_int32(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, "fo"),
on_next(220, "b"),
on_next(230, "qux"),
on_completed(240),
)
def create():
return xs.pipe(ops.sum(lambda x: len(x)))
res = scheduler.start(create=create)
assert res.messages == [on_next(240, 6), on_completed(240)]
assert xs.subscriptions == [subscribe(200, 240)]
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