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3266ae6a7e
Update comments with more info, or remove if no longer applicable. No code changes. BUG=chrome-os-partner:18343 BRANCH=none TEST=build all platforms; pass unit tests Change-Id: I5b56eeb500bc0f00e84e91ef99684f4b1b310972 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/175418 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
42 lines
1.0 KiB
Python
42 lines
1.0 KiB
Python
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Timers test
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#
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import time
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# Test during 5s
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DURATION=5
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# Linear congruential pseudo random number generator*/
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def prng(x):
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return (22695477 * x + 1) & 0xffffffff
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# period between 500us and 128ms
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def period_us(num):
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return (((num % 256) + 1) * 500)
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# build the same pseudo random sequence as the target
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def build_sequence():
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# TODO(crosbug.com/p/23800): implement
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return []
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def test(helper):
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helper.wait_output("[Timer task ")
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deadline = time.time() + DURATION
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seq = []
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while time.time() < deadline:
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tmr = helper.wait_output("(?P<t>[0-9])", use_re=True,
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timeout=1)["t"]
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seq.append(tmr)
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# Check the results
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model = build_sequence()
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# TODO(crosbug.com/p/23800): implement
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helper.trace("Got %d timer IRQ\n" % len(seq))
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return True # PASS !
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