diff options
Diffstat (limited to 'test/timer_jump.py')
| -rw-r--r-- | test/timer_jump.py | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/timer_jump.py b/test/timer_jump.py new file mode 100644 index 0000000000..2f2302e327 --- /dev/null +++ b/test/timer_jump.py @@ -0,0 +1,28 @@ +# Copyright (c) 2012 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. +# +# Timer test: check time sanity when jumping between images +# + +import time + +DELAY = 5 +ERROR_MARGIN = 0.5 + +def test(helper): + helper.wait_output("Console is enabled") + helper.ec_command("sysjump ro") + helper.wait_output("Console is enabled") + helper.ec_command("gettime") + ec_start_time = helper.wait_output("Time: 0x[0-9a-f]* = (?P<t>[\d\.]+) s", + use_re=True)["t"] + time.sleep(DELAY) + helper.ec_command("sysjump a") + helper.wait_output("Console is enabled") + helper.ec_command("gettime") + ec_end_time = helper.wait_output("Time: 0x[0-9a-f]* = (?P<t>[\d\.]+) s", + use_re=True)["t"] + + time_diff = float(ec_end_time) - float(ec_start_time) + return time_diff >= DELAY and time_diff <= DELAY + ERROR_MARGIN |