u-boot/test/py/tests/test_sleep.py
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

35 lines
1.2 KiB
Python

# 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)