51 lines
1.5 KiB
Python
Executable File
51 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# vim:fenc=utf-8
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# Copyright (C) 2017 Freie Universität Berlin
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#
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# This file is subject to the terms and conditions of the GNU Lesser
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# General Public License v2.1. See the file LICENSE in the top level
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# directory for more details.
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import os
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import sys
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import time
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US_PER_SEC = 1000000
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EXTERNAL_JITTER = 0.15
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class InvalidTimeout(Exception):
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pass
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def testfunc(child):
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try:
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child.expect_exact("Please hit any key and then ENTER to continue")
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child.sendline("a")
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start_test = time.time()
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child.expect_exact("5 x usleep(i++ * 500000)")
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for i in range(5):
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child.expect_exact("wake up")
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child.expect_exact("5 x sleep(i++)")
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for i in range(5):
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child.expect_exact("wake up")
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child.expect_exact("DONE")
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testtime = (time.time() - start_test) * US_PER_SEC
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exp = sum(i * 500000 for i in range(5)) + \
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sum(i * US_PER_SEC for i in range(5))
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lower_bound = exp - (exp * EXTERNAL_JITTER)
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upper_bound = exp + (exp * EXTERNAL_JITTER)
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if not (lower_bound < testtime < upper_bound):
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raise InvalidTimeout("Host timer measured %d us (client measured %d us)" %
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(testtime, exp))
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except InvalidTimeout as e:
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print(e)
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sys.exit(1)
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if __name__ == "__main__":
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sys.path.append(os.path.join(os.environ['RIOTBASE'], 'dist/tools/testrunner'))
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from testrunner import run
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sys.exit(run(testfunc))
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