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test/py: sleep: Add a test for the time command

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Execute "time <sleep cmd>", and validate that it gives the approximately
the correct amount of command execution time.

Signed-off-by: Love Kumar <love.kumar@amd.com>
This commit is contained in:
Love Kumar 2023-09-27 10:33:55 +05:30 • committed by Tom Rini
parent fb730a2c5a
commit 34124ad9a4
1 changed files with 18 additions and 0 deletions
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18
test/py/tests/test_sleep.py
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@ -41,3 +41,21 @@ def test_sleep(u_boot_console):
if not u_boot_console.config.gdbserver:
# margin is hopefully enough to account for any system overhead.
assert elapsed < (sleep_time + sleep_margin)
@pytest.mark.buildconfigspec("cmd_misc")
def test_time(u_boot_console):
"""Test the time command, and validate that it gives approximately the
correct amount of command execution time."""
sleep_skip = u_boot_console.config.env.get("env__sleep_accurate", True)
if not sleep_skip:
pytest.skip("sleep is not accurate")
sleep_time = u_boot_console.config.env.get("env__sleep_time", 10)
sleep_margin = u_boot_console.config.env.get("env__sleep_margin", 0.25)
output = u_boot_console.run_command("time sleep %d" % sleep_time)
execute_time = float(output.split()[1])
assert sleep_time >= (execute_time - 0.01)
if not u_boot_console.config.gdbserver:
# margin is hopefully enough to account for any system overhead.
assert sleep_time < (execute_time + sleep_margin)