| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. |
| |
| 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) |
