| # Copyright (c) OpenMMLab. All rights reserved. | |
| import platform | |
| import time | |
| import pytest | |
| import mmengine | |
| def test_timer_init(): | |
| timer = mmengine.Timer(start=False) | |
| assert not timer.is_running | |
| timer.start() | |
| assert timer.is_running | |
| timer = mmengine.Timer() | |
| assert timer.is_running | |
| def test_timer_run(): | |
| timer = mmengine.Timer() | |
| time.sleep(1) | |
| # In Windows, the error could be larger than 20ms. More details in | |
| # https://stackoverflow.com/questions/11657734/sleep-for-exact-time-in-python. # noqa: E501 | |
| assert abs(timer.since_start() - 1) < 3e-2 | |
| time.sleep(1) | |
| assert abs(timer.since_last_check() - 1) < 3e-2 | |
| assert abs(timer.since_start() - 2) < 3e-2 | |
| timer = mmengine.Timer(False) | |
| with pytest.raises(mmengine.TimerError): | |
| timer.since_start() | |
| with pytest.raises(mmengine.TimerError): | |
| timer.since_last_check() | |
| def test_timer_context(capsys): | |
| with mmengine.Timer(): | |
| time.sleep(1) | |
| out, _ = capsys.readouterr() | |
| # In Windows, the error could be larger than 20ms. More details in | |
| # https://stackoverflow.com/questions/11657734/sleep-for-exact-time-in-python. # noqa: E501 | |
| assert abs(float(out) - 1) < 3e-2 | |
| with mmengine.Timer(print_tmpl='time: {:.1f}s'): | |
| time.sleep(1) | |
| out, _ = capsys.readouterr() | |
| assert out == 'time: 1.0s\n' | |