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# THIS FILE IS PART OF THE CYLC WORKFLOW ENGINE.
# Copyright (C) NIWA & British Crown (Met Office) & Contributors.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import logging
from time import sleep
import pytest
from cylc.flow.timer import Timer
def test_Timer(caplog: pytest.LogCaptureFixture):
"""Test the Timer class."""
caplog.set_level(logging.INFO)
timer = Timer("bob timeout", 1.0)
# timer attributes
assert timer.name == "bob timer"
assert timer.interval == "PT1S"
# start timer
timer.reset()
assert caplog.records[-1].message == "PT1S bob timer starts NOW"
# check timeout
sleep(2)
assert timer.timed_out()
assert caplog.records[-1].message == "bob timer timed out after PT1S"
# stop should do nothing after timeout
caplog.clear()
timer.stop()
assert not caplog.records
# start timer again, then stop it
timer.reset()
assert caplog.records[-1].message == "PT1S bob timer starts NOW"
timer.stop()
assert caplog.records[-1].message == "bob timer stopped"
# another stop should do nothing
caplog.clear()
timer.stop()
assert not caplog.records
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