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import os
import unittest
from datetime import timedelta
from time import sleep
import pytest
from reactivex.internal.basic import default_now
from reactivex.scheduler import TrampolineScheduler
CI = os.getenv("CI") is not None
class TestTrampolineScheduler(unittest.TestCase):
@pytest.mark.skipif(CI, reason="Flaky test in GitHub Actions")
def test_trampoline_now(self):
scheduler = TrampolineScheduler()
diff = scheduler.now - default_now()
assert abs(diff) < timedelta(milliseconds=1)
@pytest.mark.skipif(CI, reason="Flaky test in GitHub Actions")
def test_trampoline_now_units(self):
scheduler = TrampolineScheduler()
diff = scheduler.now
sleep(1.1)
diff = scheduler.now - diff
assert timedelta(milliseconds=1000) < diff < timedelta(milliseconds=1300)
def test_trampoline_schedule(self):
scheduler = TrampolineScheduler()
ran = False
def action(scheduler, state=None):
nonlocal ran
ran = True
scheduler.schedule(action)
assert ran is True
def test_trampoline_schedule_block(self):
scheduler = TrampolineScheduler()
ran = False
def action(scheduler, state=None):
nonlocal ran
ran = True
t = scheduler.now
scheduler.schedule_relative(0.2, action)
t = scheduler.now - t
assert ran is True
assert t >= timedelta(seconds=0.2)
def test_trampoline_schedule_error(self):
scheduler = TrampolineScheduler()
class MyException(Exception):
pass
def action(scheduler, state=None):
raise MyException()
with pytest.raises(MyException):
scheduler.schedule(action)
def test_trampoline_schedule_nested(self):
scheduler = TrampolineScheduler()
ran = False
def action(scheduler, state=None):
def inner_action(scheduler, state=None):
nonlocal ran
ran = True
return scheduler.schedule(inner_action)
scheduler.schedule(action)
assert ran is True
def test_trampoline_schedule_nested_order(self):
scheduler = TrampolineScheduler()
tests = []
def outer(scheduler, state=None):
def action1(scheduler, state=None):
tests.append(1)
def action2(scheduler, state=None):
tests.append(2)
TrampolineScheduler().schedule(action2)
TrampolineScheduler().schedule(action1)
def action3(scheduler, state=None):
tests.append(3)
scheduler3 = TrampolineScheduler()
scheduler3.schedule(action3)
scheduler.ensure_trampoline(outer)
assert tests == [1, 2, 3]
def test_trampoline_ensuretrampoline(self):
scheduler = TrampolineScheduler()
ran1, ran2 = False, False
def outer_action(scheduer, state=None):
def action1(scheduler, state=None):
nonlocal ran1
ran1 = True
scheduler.schedule(action1)
def action2(scheduler, state=None):
nonlocal ran2
ran2 = True
return scheduler.schedule(action2)
scheduler.ensure_trampoline(outer_action)
assert ran1 is True
assert ran2 is True
def test_trampoline_ensuretrampoline_nested(self):
scheduler = TrampolineScheduler()
ran1, ran2 = False, False
def outer_action(scheduler, state):
def inner_action1(scheduler, state):
nonlocal ran1
ran1 = True
scheduler.ensure_trampoline(inner_action1)
def inner_action2(scheduler, state):
nonlocal ran2
ran2 = True
return scheduler.ensure_trampoline(inner_action2)
scheduler.ensure_trampoline(outer_action)
assert ran1 is True
assert ran2 is True
def test_trampoline_ensuretrampoline_and_cancel(self):
scheduler = TrampolineScheduler()
ran1, ran2 = False, False
def outer_action(scheduler, state):
def inner_action1(scheduler, state):
nonlocal ran1
ran1 = True
def inner_action2(scheduler, state):
nonlocal ran2
ran2 = True
d = scheduler.schedule(inner_action2)
d.dispose()
return scheduler.schedule(inner_action1)
scheduler.ensure_trampoline(outer_action)
assert ran1 is True
assert ran2 is False
def test_trampoline_ensuretrampoline_and_canceltimed(self):
scheduler = TrampolineScheduler()
ran1, ran2 = False, False
def outer_action(scheduler, state):
def inner_action1(scheduler, state):
nonlocal ran1
ran1 = True
def inner_action2(scheduler, state):
nonlocal ran2
ran2 = True
t = scheduler.now + timedelta(seconds=0.5)
d = scheduler.schedule_absolute(t, inner_action2)
d.dispose()
return scheduler.schedule(inner_action1)
scheduler.ensure_trampoline(outer_action)
assert ran1 is True
assert ran2 is False
|
