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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 TestTakeLast(unittest.TestCase):
def test_takelast_zero1(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1), on_next(220, 2), on_completed(230)
)
def create():
return xs.pipe(ops.take_last_with_time(0))
res = scheduler.start(create)
assert res.messages == [on_completed(230)]
assert xs.subscriptions == [subscribe(200, 230)]
def test_takelast_zero2(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1), on_next(220, 2), on_next(230, 3), on_completed(230)
)
def create():
return xs.pipe(ops.take_last_with_time(0))
res = scheduler.start(create)
assert res.messages == [on_completed(230)]
assert xs.subscriptions == [subscribe(200, 230)]
def test_takelast_some1(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1), on_next(220, 2), on_next(230, 3), on_completed(240)
)
def create():
return xs.pipe(ops.take_last_with_time(25))
res = scheduler.start(create)
assert res.messages == [on_next(240, 2), on_next(240, 3), on_completed(240)]
assert xs.subscriptions == [subscribe(200, 240)]
def test_takelast_some2(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1), on_next(220, 2), on_next(230, 3), on_completed(300)
)
def create():
return xs.pipe(ops.take_last_with_time(25))
res = scheduler.start(create)
assert res.messages == [on_completed(300)]
assert xs.subscriptions == [subscribe(200, 300)]
def test_takelast_some3(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1),
on_next(220, 2),
on_next(230, 3),
on_next(240, 4),
on_next(250, 5),
on_next(260, 6),
on_next(270, 7),
on_next(280, 8),
on_next(290, 9),
on_completed(300),
)
def create():
return xs.pipe(ops.take_last_with_time(45))
res = scheduler.start(create)
assert res.messages == [
on_next(300, 6),
on_next(300, 7),
on_next(300, 8),
on_next(300, 9),
on_completed(300),
]
assert xs.subscriptions == [subscribe(200, 300)]
def test_takelast_some4(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1),
on_next(240, 2),
on_next(250, 3),
on_next(280, 4),
on_next(290, 5),
on_next(300, 6),
on_completed(350),
)
def create():
return xs.pipe(ops.take_last_with_time(25))
res = scheduler.start(create)
assert res.messages == [on_completed(350)]
assert xs.subscriptions == [subscribe(200, 350)]
def test_takelast_all(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1), on_next(220, 2), on_completed(230)
)
def create():
return xs.pipe(ops.take_last_with_time(50))
res = scheduler.start(create)
assert res.messages == [on_next(230, 1), on_next(230, 2), on_completed(230)]
assert xs.subscriptions == [subscribe(200, 230)]
def test_takelast_error(self):
ex = "ex"
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_error(210, ex))
def create():
return xs.pipe(ops.take_last_with_time(50))
res = scheduler.start(create)
assert res.messages == [on_error(210, ex)]
assert xs.subscriptions == [subscribe(200, 210)]
def test_takelast_never(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable()
def create():
return xs.pipe(ops.take_last_with_time(50))
res = scheduler.start(create)
assert res.messages == []
assert xs.subscriptions == [subscribe(200, 1000)]
|
