| # Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. | |
| # | |
| # SPDX-License-Identifier: GPL-2.0 | |
| import pytest | |
| import time | |
| """ | |
| Note: This test doesn't rely on boardenv_* configuration values but they can | |
| change test behavior. | |
| # Setup env__sleep_accurate to False if time is not accurate on your platform | |
| env__sleep_accurate = False | |
| """ | |
| def test_sleep(u_boot_console): | |
| """Test the sleep command, and validate that it sleeps for approximately | |
| the correct amount of time.""" | |
| sleep_skip = u_boot_console.config.env.get('env__sleep_accurate', True) | |
| if not sleep_skip: | |
| pytest.skip('sleep is not accurate') | |
| if u_boot_console.config.buildconfig.get('config_cmd_misc', 'n') != 'y': | |
| pytest.skip('sleep command not supported') | |
| # 3s isn't too long, but is enough to cross a few second boundaries. | |
| sleep_time = 3 | |
| tstart = time.time() | |
| u_boot_console.run_command('sleep %d' % sleep_time) | |
| tend = time.time() | |
| elapsed = tend - tstart | |
| assert elapsed >= (sleep_time - 0.01) | |
| if not u_boot_console.config.gdbserver: | |
| # 0.25s margin is hopefully enough to account for any system overhead. | |
| assert elapsed < (sleep_time + 0.25) |