Add a test of checking timer value when system jump

This test checks the sanity of timer value when jumping between images.

BUG=chrome-os-partner:9188
TEST=Test passed

Change-Id: If264e28e4ceec6ddb8325f3496825a40e7a038d8
Reviewed-on: https://gerrit.chromium.org/gerrit/25371
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Vic Yang <victoryang@chromium.org>
Tested-by: Vic Yang <victoryang@chromium.org>

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