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import unittest
from datetime import timedelta
import reactivex
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 TimeInterval(object):
def __init__(self, value, interval):
if isinstance(interval, timedelta):
interval = int(
interval.seconds
) # FIXME: Must fix when tests run at fraction of seconds.
self.value = value
self.interval = interval
def __str__(self):
return "%s@%s" % (self.value, self.interval)
def equals(self, other):
return other.interval == self.interval and other.value == self.value
class TestTimeInterval(unittest.TestCase):
def test_time_interval_regular(self):
scheduler = TestScheduler()
xs = scheduler.create_hot_observable(
on_next(150, 1),
on_next(210, 2),
on_next(230, 3),
on_next(260, 4),
on_next(300, 5),
on_next(350, 6),
on_completed(400),
)
def create():
def mapper(x):
return TimeInterval(x.value, x.interval)
return xs.pipe(
ops.time_interval(),
ops.map(mapper),
)
results = scheduler.start(create)
assert results.messages == [
on_next(210, TimeInterval(2, 10)),
on_next(230, TimeInterval(3, 20)),
on_next(260, TimeInterval(4, 30)),
on_next(300, TimeInterval(5, 40)),
on_next(350, TimeInterval(6, 50)),
on_completed(400),
]
def test_time_interval_empty(self):
scheduler = TestScheduler()
def create():
return reactivex.empty().pipe(ops.time_interval())
results = scheduler.start(create)
assert results.messages == [on_completed(200)]
def test_time_interval_error(self):
ex = "ex"
scheduler = TestScheduler()
def create():
return reactivex.throw(ex).pipe(ops.time_interval())
results = scheduler.start(create)
assert results.messages == [on_error(200, ex)]
def test_time_interval_never(self):
scheduler = TestScheduler()
def create():
return reactivex.never().pipe(ops.time_interval())
results = scheduler.start(create)
assert results.messages == []
def test_time_interval_default_scheduler(self):
import datetime
import time
xs = reactivex.of(1, 2).pipe(
ops.time_interval(),
ops.pluck_attr("interval"),
)
l = []
d = xs.subscribe(l.append)
time.sleep(0.1)
self.assertEqual(len(l), 2)
[self.assertIsInstance(el, datetime.timedelta) for el in l]
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