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import os
import threading
import unittest
from datetime import timedelta
from time import sleep
import pytest
from reactivex.internal.basic import default_now
from reactivex.scheduler import ThreadPoolScheduler
thread_pool_scheduler = ThreadPoolScheduler()
CI = os.getenv("CI") is not None
class TestThreadPoolScheduler(unittest.TestCase):
@pytest.mark.skipif(CI, reason="Flaky test in GitHub Actions")
def test_threadpool_now(self):
scheduler = ThreadPoolScheduler()
diff = scheduler.now - default_now()
assert abs(diff) < timedelta(milliseconds=5)
def test_threadpool_now_units(self):
scheduler = ThreadPoolScheduler()
diff = scheduler.now
sleep(1.1)
diff = scheduler.now - diff
assert timedelta(milliseconds=1000) < diff < timedelta(milliseconds=1300)
def test_schedule_action(self):
ident = threading.current_thread().ident
evt = threading.Event()
nt = thread_pool_scheduler
def action(scheduler, state):
assert ident != threading.current_thread().ident
evt.set()
nt.schedule(action)
evt.wait()
def test_schedule_action_due_relative(self):
ident = threading.current_thread().ident
evt = threading.Event()
nt = thread_pool_scheduler
def action(scheduler, state):
assert ident != threading.current_thread().ident
evt.set()
nt.schedule_relative(timedelta(milliseconds=200), action)
evt.wait()
def test_schedule_action_due_0(self):
ident = threading.current_thread().ident
evt = threading.Event()
nt = thread_pool_scheduler
def action(scheduler, state):
assert ident != threading.current_thread().ident
evt.set()
nt.schedule_relative(0.1, action)
evt.wait()
def test_schedule_action_absolute(self):
ident = threading.current_thread().ident
evt = threading.Event()
nt = thread_pool_scheduler
def action(scheduler, state):
assert ident != threading.current_thread().ident
evt.set()
nt.schedule_absolute(default_now() + timedelta(milliseconds=100), action)
evt.wait()
def test_schedule_action_cancel(self):
nt = thread_pool_scheduler
ran = False
def action(scheduler, state):
nonlocal ran
ran = True
d = nt.schedule_relative(0.05, action)
d.dispose()
sleep(0.1)
assert ran is False
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