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# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Task scheduling test
#
import time
# Test during 5s
DURATION=5
def test(helper):
helper.wait_output("[starting Task T]")
helper.wait_output("[starting Task C]")
helper.wait_output("[starting Task B]")
helper.wait_output("[starting Task A]")
deadline = time.time() + DURATION
count = []
while time.time() < deadline:
sched = helper.wait_output("(?P<a>(?:ABC){3,200})T", use_re=True,
timeout=1)["a"]
count.append(len(sched) / 3)
helper.trace("IRQ count %d, cycles count min %d max %d\n" %
(len(count), min(count), max(count)))
return True # PASS !
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