32 lines
1.1 KiB
Python
32 lines
1.1 KiB
Python
# Copyright 2012 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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# Timer test: check time consistency when jumping between images
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#
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import time
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DELAY = 5
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ERROR_MARGIN = 0.5
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def test(helper):
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helper.wait_output("idle task started")
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helper.ec_command("sysinfo")
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copy = helper.wait_output("Copy:\s+(?P<c>\S+)", use_re=True)["c"]
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if copy != "RO":
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helper.ec_command("sysjump ro")
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helper.wait_output("idle task started")
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helper.ec_command("gettime")
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ec_start_time = helper.wait_output("Time: 0x[0-9a-f]* = (?P<t>[\d\.]+) s",
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use_re=True)["t"]
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time.sleep(DELAY)
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helper.ec_command("sysjump a")
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helper.wait_output("idle task started")
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helper.ec_command("gettime")
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ec_end_time = helper.wait_output("Time: 0x[0-9a-f]* = (?P<t>[\d\.]+) s",
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use_re=True)["t"]
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time_diff = float(ec_end_time) - float(ec_start_time)
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return time_diff >= DELAY and time_diff <= DELAY + ERROR_MARGIN
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