def test_retry_observable_retry_count_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1).retry(3)
xs.subscribe_(lambda x: _raise('ex'), scheduler=scheduler1)
self.assertRaises(RxException, scheduler1.start)
scheduler2 = TestScheduler()
ys = Observable.throw('ex').retry(100)
d = ys.subscribe_(on_error=lambda ex: _raise('ex'), scheduler=scheduler2)
def dispose(_, __):
d.dispose()
scheduler2.schedule_absolute(0, dispose)
scheduler2.start()
scheduler3 = TestScheduler()
zs = Observable.return_value(1).retry(100)
zs.subscribe_(on_completed=lambda: _raise('ex'), scheduler=scheduler3)
with pytest.raises(RxException):
scheduler3.start()
xss = Observable.create(lambda o: _raise('ex')).retry(100)
with pytest.raises(Exception):
xss.subscribe()
def test_repeat_observable_repeat_count_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1, scheduler1).repeat(3)
xs.subscribe(lambda x: _raise('ex'))
with self.assertRaises(RxException):
scheduler1.start()
scheduler2 = TestScheduler()
ys = Observable.throw_exception('ex1', scheduler2).repeat(3)
ys.subscribe(on_error=lambda ex: _raise('ex2'))
with self.assertRaises(RxException):
scheduler2.start()
scheduler3 = TestScheduler()
zs = Observable.return_value(1, scheduler3).repeat(100)
d = zs.subscribe(on_completed=lambda: _raise('ex3'))
scheduler3.schedule_absolute(10, lambda sc, st: d.dispose())
scheduler3.start()
xss = Observable.create(lambda o: _raise('ex4')).repeat(3)
with self.assertRaises(RxException):
xss.subscribe()
def test_repeat_observable_repeat_count_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1, scheduler1).repeat(3)
xs.subscribe(lambda x: _raise('ex'))
with self.assertRaises(RxException):
scheduler1.start()
scheduler2 = TestScheduler()
ys = Observable.throw_exception('ex1', scheduler2).repeat(3)
ys.subscribe(on_error=lambda ex: _raise('ex2'))
with self.assertRaises(RxException):
scheduler2.start()
scheduler3 = TestScheduler()
zs = Observable.return_value(1, scheduler3).repeat(100)
d = zs.subscribe(on_completed=lambda: _raise('ex3'))
scheduler3.schedule_absolute(10, lambda sc, st: d.dispose())
scheduler3.start()
xss = Observable.create(lambda o: _raise('ex4')).repeat(3)
with self.assertRaises(RxException):
xss.subscribe()
def test_for_each_index_return(self):
lstX = []
lstI = []
def action(x, i):
lstX.append(x)
lstI.append(i)
Observable.return_value(42).to_blocking().for_each(action)
assert (lstX == [42])
assert (lstI == [0])
def test_for_each_index_return(self):
lstX = []
lstI = []
def action(x, i):
lstX.append(x)
lstI.append(i)
Observable.return_value(42).to_blocking().for_each(action)
assert(lstX == [42])
assert(lstI == [0])
def test_return_observer_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1, scheduler1)
xs.subscribe(lambda x: _raise('ex'))
self.assertRaises(RxException, scheduler1.start)
scheduler2 = TestScheduler()
ys = Observable.return_value(1, scheduler2)
ys.subscribe(lambda x: x, lambda ex: ex, lambda: _raise('ex'))
self.assertRaises(RxException, scheduler2.start)
def test_return_observer_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1, scheduler1)
xs.subscribe(lambda x: _raise('ex'))
self.assertRaises(RxException, scheduler1.start)
scheduler2 = TestScheduler()
ys = Observable.return_value(1, scheduler2)
ys.subscribe(lambda x: x, lambda ex: ex, lambda: _raise('ex'))
self.assertRaises(RxException, scheduler2.start)
def repeat(cls, value=None, repeat_count=None, scheduler=None):
"""Generates an observable sequence that repeats the given element the
specified number of times, using the specified scheduler to send out
observer messages.
1 - res = rx.Observable.repeat(42)
2 - res = rx.Observable.repeat(42, 4)
3 - res = rx.Observable.repeat(42, 4, Rx.Scheduler.timeout)
4 - res = rx.Observable.repeat(42, None, Rx.Scheduler.timeout)
Keyword arguments:
value -- Element to repeat.
repeat_count -- [Optional] Number of times to repeat the element. If not
specified, repeats indefinitely.
scheduler -- Scheduler to run the producer loop on. If not specified,
defaults to ImmediateScheduler.
Returns an observable sequence that repeats the given element the
specified number of times."""
scheduler = scheduler or current_thread_scheduler
if repeat_count == -1:
repeat_count = None
xs = Observable.return_value(value, scheduler)
return xs.repeat(repeat_count)
def test_subject_create():
_x = [None]
_ex = [None]
done = False
def on_next(x):
_x[0] = x
def on_error(ex):
_ex[0] = ex
def on_completed():
done = True
v = AnonymousObserver(on_next, on_error, on_completed)
o = Observable.return_value(42)
s = Subject.create(v, o)
def on_next2(x):
_x[0] = x
s.subscribe_(on_next2)
assert(42 == _x[0])
s.on_next(21)
e = 'ex'
s.on_error(e)
assert(e == _ex[0])
s.on_completed()
assert(not done)
def repeat(cls, value=None, repeat_count=None, scheduler=None):
"""Generates an observable sequence that repeats the given element the
specified number of times, using the specified scheduler to send out
observer messages.
1 - res = rx.Observable.repeat(42)
2 - res = rx.Observable.repeat(42, 4)
3 - res = rx.Observable.repeat(42, 4, Rx.Scheduler.timeout)
4 - res = rx.Observable.repeat(42, None, Rx.Scheduler.timeout)
Keyword arguments:
value -- Element to repeat.
repeat_count -- [Optional] Number of times to repeat the element. If not
specified, repeats indefinitely.
scheduler -- Scheduler to run the producer loop on. If not specified,
defaults to ImmediateScheduler.
Returns an observable sequence that repeats the given element the
specified number of times."""
scheduler = scheduler or current_thread_scheduler
if repeat_count == -1:
repeat_count = None
xs = Observable.return_value(value, scheduler)
return xs.repeat(repeat_count)
def test_subject_create():
_x = [None]
_ex = [None]
done = False
def on_next(x):
_x[0] = x
def on_error(ex):
_ex[0] = ex
def on_completed():
done = True
v = AnonymousObserver(on_next, on_error, on_completed)
o = Observable.return_value(42)
s = Subject.create(v, o)
def on_next2(x):
_x[0] = x
s.subscribe(on_next2)
assert(42 == _x[0])
s.on_next(21)
e = 'ex'
s.on_error(e)
assert(e == _ex[0])
s.on_completed()
assert(not done)
def test_retry_observable_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1, scheduler1).retry()
xs.subscribe(lambda x: _raise('ex'))
self.assertRaises(RxException, scheduler1.start)
scheduler2 = TestScheduler()
ys = Observable.throw_exception('ex', scheduler2).retry()
d = ys.subscribe(on_error=lambda ex: _raise('ex'))
scheduler2.schedule_absolute(210, lambda sc, st: d.dispose())
scheduler2.start()
scheduler3 = TestScheduler()
zs = Observable.return_value(1, scheduler3).retry()
zs.subscribe(on_completed=lambda: _raise('ex'))
self.assertRaises(RxException, scheduler3.start)
def test_retry_observable_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1, scheduler1).retry()
xs.subscribe(lambda x: _raise('ex'))
self.assertRaises(RxException, scheduler1.start)
scheduler2 = TestScheduler()
ys = Observable.throw_exception('ex', scheduler2).retry()
d = ys.subscribe(on_error=lambda ex: _raise('ex'))
scheduler2.schedule_absolute(210, lambda sc, st: d.dispose())
scheduler2.start()
scheduler3 = TestScheduler()
zs = Observable.return_value(1, scheduler3).retry()
zs.subscribe(on_completed=lambda: _raise('ex'))
self.assertRaises(RxException, scheduler3.start)
def test_retry_observable_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1).retry()
xs.subscribe_(lambda x: _raise('ex'), scheduler=scheduler1)
with pytest.raises(RxException):
scheduler1.start()
scheduler2 = TestScheduler()
ys = Observable.throw('ex').retry()
d = ys.subscribe_(on_error=lambda ex: _raise('ex'), scheduler=scheduler2)
scheduler2.schedule_absolute(210, lambda sc, st: d.dispose())
scheduler2.start()
scheduler3 = TestScheduler()
zs = Observable.return_value(1).retry()
zs.subscribe_(on_completed=lambda: _raise('ex'), scheduler=scheduler3)
with pytest.raises(RxException):
scheduler3.start()
def go():
source = Observable.return_value(42)
future = source.to_future(asyncio.Future)
def done(future):
try:
value = future.result()
except Exception:
success[1] = False
else:
success[0] = value == 42
future.add_done_callback(done)
def go():
source = Observable.return_value(42)
future = source.to_future(asyncio.Future)
def done(future):
try:
value = future.result()
except Exception:
success[1] = False
else:
success[0] = value == 42
future.add_done_callback(done)
def test_connectable_observable_creation(self):
y = [0]
s2 = Subject()
co2 = ConnectableObservable(Observable.return_value(1), s2)
def on_next(x):
y[0] = x
co2.subscribe(on_next=on_next)
self.assertNotEqual(1, y[0])
co2.connect()
self.assertEqual(1, y[0])
def test_repeat_observable_repeat_count_throws(self):
scheduler1 = TestScheduler()
xs = Observable.return_value(1).repeat(3)
xs.subscribe_(lambda x: _raise('ex'), scheduler=scheduler1)
with self.assertRaises(RxException):
scheduler1.start()
scheduler2 = TestScheduler()
ys = Observable.throw('ex1').repeat(3)
ys.subscribe_(on_error=lambda ex: _raise('ex2'), scheduler=scheduler2)
with self.assertRaises(RxException):
scheduler2.start()
def test_connectable_observable_creation(self):
y = [0]
s2 = Subject()
co2 = ConnectableObservable(Observable.return_value(1), s2)
def on_next(x):
y[0] = x
co2.subscribe(on_next=on_next)
self.assertNotEqual(1, y[0])
co2.connect()
self.assertEqual(1, y[0])
def test_map_throws(self):
with self.assertRaises(RxException):
Observable.return_value(1) \
.map(mapper_indexed=lambda x, y: x) \
.subscribe_(lambda x: _raise("ex"))
with self.assertRaises(RxException):
Observable.throw('ex') \
.map(mapper_indexed=lambda x, y: x) \
.subscribe_(on_error=lambda ex: _raise(ex))
with self.assertRaises(RxException):
Observable.empty() \
.map(mapper_indexed=lambda x, y: x) \
.subscribe_(lambda x: x, lambda ex: ex, lambda: _raise('ex'))
def subscribe(observer, scheduler=None):
_raise('ex')
with self.assertRaises(RxException):
Observable.create(subscribe) \
.map(lambda x: x) \
.subscribe()
def test_select_throws(self):
with self.assertRaises(RxException):
Observable.return_value(1) \
.map(lambda x, y: x) \
.subscribe(lambda x: _raise("ex"))
with self.assertRaises(RxException):
Observable.throw_exception('ex') \
.map(lambda x, y: x) \
.subscribe(on_error=lambda ex: _raise(ex))
with self.assertRaises(RxException):
Observable.empty() \
.map(lambda x, y: x) \
.subscribe(lambda x: x, lambda ex: ex, lambda: _raise('ex'))
def subscribe(observer):
_raise('ex')
with self.assertRaises(RxException):
Observable.create(subscribe) \
.map(lambda x: x) \
.subscribe()
def test_select_throws(self):
with self.assertRaises(RxException):
Observable.return_value(1) \
.map(lambda x, y: x) \
.subscribe(lambda x: _raise("ex"))
with self.assertRaises(RxException):
Observable.throw_exception('ex') \
.map(lambda x, y: x) \
.subscribe(on_error=lambda ex: _raise(ex))
with self.assertRaises(RxException):
Observable.empty() \
.map(lambda x, y: x) \
.subscribe(lambda x: x, lambda ex: ex, lambda: _raise('ex'))
def subscribe(observer):
_raise('ex')
with self.assertRaises(RxException):
Observable.create(subscribe) \
.map(lambda x: x) \
.subscribe()
def repeat_value(value: Any = None, repeat_count: int = None) -> ObservableBase:
"""Generates an observable sequence that repeats the given element
the specified number of times.
1 - res = repeat_value(42)
2 - res = repeat_value(42, 4)
Keyword arguments:
value -- Element to repeat.
repeat_count -- [Optional] Number of times to repeat the element.
If not specified, repeats indefinitely.
Returns an observable sequence that repeats the given element the
specified number of times."""
if repeat_count == -1:
repeat_count = None
xs = Observable.return_value(value)
return xs.repeat(repeat_count)
def test_select_with_index_throws(self):
with self.assertRaises(RxException):
return Observable.return_value(1) \
.map(lambda x, index: x) \
.subscribe(lambda x: _raise('ex'))
with self.assertRaises(RxException):
return Observable.throw_exception('ex') \
.map(lambda x, index: x) \
.subscribe(lambda x: x, lambda ex: _raise(ex))
with self.assertRaises(RxException):
return Observable.empty() \
.map(lambda x, index: x) \
.subscribe(lambda x: x, lambda ex: _, lambda : _raise('ex'))
with self.assertRaises(RxException):
return Observable.create(lambda o: _raise('ex')) \
.map(lambda x, index: x) \
.subscribe()
def test_map_with_index_throws(self):
with self.assertRaises(RxException):
return Observable.return_value(1) \
.map(mapper_indexed=lambda x, index: x) \
.subscribe_(lambda x: _raise('ex'))
with self.assertRaises(RxException):
return Observable.throw('ex') \
.map(mapper_indexed=lambda x, index: x) \
.subscribe_(lambda x: x, lambda ex: _raise(ex))
with self.assertRaises(RxException):
return Observable.empty() \
.map(lambda x, index: x) \
.subscribe_(lambda x: x, lambda ex: _, lambda : _raise('ex'))
with self.assertRaises(RxException):
return Observable.create(lambda o: _raise('ex')) \
.map(mapper_indexed=lambda x, index: x) \
.subscribe()
def test_return_disposed_after_next(self):
scheduler = TestScheduler()
d = SerialDisposable()
xs = Observable.return_value(42, scheduler)
results = scheduler.create_observer()
def action(scheduler, state):
def on_next(x):
d.dispose()
results.on_next(x)
def on_error(e):
results.on_error(e)
def on_completed():
results.on_completed()
d.disposable = xs.subscribe(on_next, on_error, on_completed)
return d.disposable
scheduler.schedule_absolute(100, action)
scheduler.start()
results.messages.assert_equal(on_next(101, 42))
def test_return_disposed_after_next(self):
scheduler = TestScheduler()
d = SerialDisposable()
xs = Observable.return_value(42, scheduler)
results = scheduler.create_observer()
def action(scheduler, state):
def on_next(x):
d.dispose()
results.on_next(x)
def on_error(e):
results.on_error(e)
def on_completed():
results.on_completed()
d.disposable = xs.subscribe(on_next, on_error, on_completed)
return d.disposable
scheduler.schedule_absolute(100, action)
scheduler.start()
results.messages.assert_equal(on_next(101, 42))
def test_for_each_return(self):
lst = []
Observable.return_value(42).to_blocking().for_each(
lambda x: lst.append(x))
assert (lst == [42])
async def go():
nonlocal result
source = Observable.return_value(42)
result = await source
def factory():
return Observable.return_value(42, scheduler)
def prep(p, *args):
return Observable.return_value(p).delay(delays.get(p))
def test_for_each_return(self):
lst = []
Observable.return_value(42).to_blocking().for_each(lambda x: lst.append(x))
assert(lst == [42])
def factory():
return Observable.return_value(42)
async def go():
nonlocal result
source = Observable.return_value(42)
result = await source
def factory():
return Observable.return_value(42, scheduler)
