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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 TestIf_then(unittest.TestCase):
def test_if_true(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1), on_next(250, 2), on_completed(300)
)
ys = scheduler.create_hot_observable(
on_next(310, 3), on_next(350, 4), on_completed(400)
)
def create():
return reactivex.if_then(lambda: True, xs, ys)
results = scheduler.start(create=create)
assert results.messages == [on_next(210, 1), on_next(250, 2), on_completed(300)]
assert xs.subscriptions == [subscribe(200, 300)]
assert ys.subscriptions == []
def test_if_false(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1), on_next(250, 2), on_completed(300)
)
ys = scheduler.create_hot_observable(
on_next(310, 3), on_next(350, 4), on_completed(400)
)
def create():
return reactivex.if_then(lambda: False, xs, ys)
results = scheduler.start(create=create)
assert results.messages == [on_next(310, 3), on_next(350, 4), on_completed(400)]
assert xs.subscriptions == []
assert ys.subscriptions == [subscribe(200, 400)]
def test_if_on_error(self):
ex = "ex"
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(210, 1), on_next(250, 2), on_completed(300)
)
ys = scheduler.create_hot_observable(
on_next(310, 3), on_next(350, 4), on_completed(400)
)
def create():
def condition():
raise Exception(ex)
return reactivex.if_then(condition, xs, ys)
results = scheduler.start(create=create)
assert results.messages == [on_error(200, ex)]
assert xs.subscriptions == []
assert ys.subscriptions == []
def test_if_dispose(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(on_next(210, 1), on_next(250, 2))
ys = scheduler.create_hot_observable(
on_next(310, 3), on_next(350, 4), on_completed(400)
)
def create():
return reactivex.if_then(lambda: True, xs, ys)
results = scheduler.start(create=create)
assert results.messages == [on_next(210, 1), on_next(250, 2)]
assert xs.subscriptions == [subscribe(200, 1000)]
assert ys.subscriptions == []
def test_if_default_completed(self):
b = [False]
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(110, 1), on_next(220, 2), on_next(330, 3), on_completed(440)
)
def action(scheduler, state):
b[0] = True
scheduler.schedule_absolute(150, action)
def create():
def condition():
return b[0]
return reactivex.if_then(condition, xs)
results = scheduler.start(create)
assert results.messages == [on_next(220, 2), on_next(330, 3), on_completed(440)]
assert xs.subscriptions == [subscribe(200, 440)]
def test_if_default_error(self):
ex = "ex"
b = [False]
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(110, 1), on_next(220, 2), on_next(330, 3), on_error(440, ex)
)
def action(scheduler, state):
b[0] = True
scheduler.schedule_absolute(150, action)
def create():
def condition():
return b[0]
return reactivex.if_then(condition, xs)
results = scheduler.start(create)
assert results.messages == [on_next(220, 2), on_next(330, 3), on_error(440, ex)]
assert xs.subscriptions == [subscribe(200, 440)]
def test_if_default_never(self):
b = [False]
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(110, 1), on_next(220, 2), on_next(330, 3)
)
def action(scheduler, state):
b[0] = True
scheduler.schedule_absolute(150, action)
def create():
def condition():
return b[0]
return reactivex.if_then(condition, xs)
results = scheduler.start(create)
assert results.messages == [on_next(220, 2), on_next(330, 3)]
assert xs.subscriptions == [subscribe(200, 1000)]
def test_if_default_other(self):
b = [True]
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(110, 1), on_next(220, 2), on_next(330, 3), on_error(440, "ex")
)
def action(scheduler, state):
b[0] = False
scheduler.schedule_absolute(150, action)
def create():
def condition():
return b[0]
return reactivex.if_then(condition, xs)
results = scheduler.start(create)
assert results.messages == [on_completed(200)]
assert xs.subscriptions == []
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