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752c376987
This fixture name is quite long and results in lots of verbose code. We know this is U-Boot so the 'u_boot_' part is not necessary. But it is also a bit of a misnomer, since it provides access to all the information available to tests. It is not just the console. It would be too confusing to use con as it would be confused with config and it is probably too short. So shorten it to 'ubman'. Signed-off-by: Simon Glass <sjg@chromium.org> Link: https://lore.kernel.org/u-boot/CAFLszTgPa4aT_J9h9pqeTtLCVn4x2JvLWRcWRD8NaN3uoSAtyA@mail.gmail.com/
61 lines
2.2 KiB
Python
61 lines
2.2 KiB
Python
# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
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import pytest
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import time
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"""
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Note: This test doesn't rely on boardenv_* configuration values but they can
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change test behavior.
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# Setup env__sleep_accurate to False if time is not accurate on your platform
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env__sleep_accurate = False
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# Setup env__sleep_time time in seconds board is set to sleep
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env__sleep_time = 3
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# Setup env__sleep_margin set a margin for any system overhead
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env__sleep_margin = 0.25
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"""
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def test_sleep(ubman):
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"""Test the sleep command, and validate that it sleeps for approximately
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the correct amount of time."""
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sleep_skip = ubman.config.env.get('env__sleep_accurate', True)
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if not sleep_skip:
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pytest.skip('sleep is not accurate')
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if ubman.config.buildconfig.get('config_cmd_sleep', 'n') != 'y':
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pytest.skip('sleep command not supported')
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# 3s isn't too long, but is enough to cross a few second boundaries.
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sleep_time = ubman.config.env.get('env__sleep_time', 3)
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sleep_margin = ubman.config.env.get('env__sleep_margin', 0.25)
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tstart = time.time()
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ubman.run_command('sleep %d' % sleep_time)
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tend = time.time()
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elapsed = tend - tstart
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assert elapsed >= (sleep_time - 0.01)
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if not ubman.config.gdbserver:
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# margin is hopefully enough to account for any system overhead.
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assert elapsed < (sleep_time + sleep_margin)
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@pytest.mark.buildconfigspec("cmd_time")
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def test_time(ubman):
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"""Test the time command, and validate that it gives approximately the
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correct amount of command execution time."""
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sleep_skip = ubman.config.env.get("env__sleep_accurate", True)
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if not sleep_skip:
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pytest.skip("sleep is not accurate")
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sleep_time = ubman.config.env.get("env__sleep_time", 10)
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sleep_margin = ubman.config.env.get("env__sleep_margin", 0.25)
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output = ubman.run_command("time sleep %d" % sleep_time)
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execute_time = float(output.split()[1])
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assert sleep_time >= (execute_time - 0.01)
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if not ubman.config.gdbserver:
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# margin is hopefully enough to account for any system overhead.
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assert sleep_time < (execute_time + sleep_margin)
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