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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 TestCreate(unittest.TestCase):
def test_create_next(self):
scheduler = TestScheduler()
def _create():
def subscribe(o, scheduler=None):
o.on_next(1)
o.on_next(2)
return lambda: None
return reactivex.create(subscribe)
results = scheduler.start(_create)
assert results.messages == [on_next(200, 1), on_next(200, 2)]
def test_create_completed(self):
scheduler = TestScheduler()
def _create():
def subscribe(o, scheduler=None):
o.on_completed()
o.on_next(100)
o.on_error("ex")
o.on_completed()
return lambda: None
return reactivex.create(subscribe)
results = scheduler.start(_create)
assert results.messages == [on_completed(200)]
def test_create_error(self):
scheduler = TestScheduler()
ex = "ex"
def _create():
def subscribe(o, scheduler=None):
o.on_error(ex)
o.on_next(100)
o.on_error("foo")
o.on_completed()
return lambda: None
return reactivex.create(subscribe)
results = scheduler.start(_create)
assert results.messages == [on_error(200, ex)]
def test_create_exception(self):
with self.assertRaises(RxException):
reactivex.create(lambda o, s: _raise("ex")).subscribe()
def test_create_dispose(self):
scheduler = TestScheduler()
def _create():
def subscribe(o, scheduler=None):
is_stopped = [False]
o.on_next(1)
o.on_next(2)
def action1(scheduler, state):
if not is_stopped[0]:
return o.on_next(3)
scheduler.schedule_relative(600, action1)
def action2(scheduler, state):
if not is_stopped[0]:
return o.on_next(4)
scheduler.schedule_relative(700, action2)
def action3(scheduler, state):
if not is_stopped[0]:
return o.on_next(5)
scheduler.schedule_relative(900, action3)
def action4(scheduler, state):
if not is_stopped[0]:
return o.on_next(6)
scheduler.schedule_relative(1100, action4)
def dispose():
is_stopped[0] = True
return dispose
return reactivex.create(subscribe)
results = scheduler.start(_create)
assert results.messages == [
on_next(200, 1),
on_next(200, 2),
on_next(800, 3),
on_next(900, 4),
]
def test_create_observer_throws(self):
def subscribe(o, scheduler=None):
o.on_next(1)
return lambda: None
with self.assertRaises(RxException):
reactivex.create(subscribe).subscribe(lambda x: _raise("ex"))
def subscribe2(o, scheduler=None):
o.on_error("exception")
return lambda: None
with self.assertRaises(RxException):
reactivex.create(subscribe2).subscribe(on_error=lambda ex: _raise("ex"))
def subscribe3(o, scheduler=None):
o.on_completed()
return lambda: None
with self.assertRaises(RxException):
reactivex.create(subscribe3).subscribe(on_completed=lambda: _raise("ex"))
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