Android bot changes for robustness, profiling, and debugging.

Kill all emulators before starting a test to be more robust on error.
Print error if a file fails to copy to the device.
Speed up emulator launch by 40%.
Increase emulator partition size to fix 'out of space on device' errors.
Log emulator launch time to help profile bot costs.
Run tests in verbose mode to assist with bot debugging.

BUG=None
TEST=

Review URL: http://codereview.chromium.org/8769020

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112552 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 22 insertions, 0 deletions

diff --git a/build/android/run_tests.py b/build/android/run_tests.py
index 19e1672..61b01d7 100755
--- a/build/android/run_tests.py
+++ b/build/android/run_tests.py
@@ -65,6 +65,25 @@ from test_result import BaseTestResult, TestResults
 
 _TEST_SUITES = ['base_unittests', 'sql_unittests', 'ipc_tests', 'net_unittests']
 
+
+class TimeProfile(object):
+  """Class for simple profiling of action, with logging of cost."""
+
+  def __init__(self, description):
+    self._description = description
+    self.Start()
+
+  def Start(self):
+    self._starttime = time.time()
+
+  def Stop(self):
+    """Stop profiling and dump a log."""
+    if self._starttime:
+      stoptime = time.time()
+      logging.info('%fsec to perform %s' %
+                   (stoptime - self._starttime, self._description))
+      self._starttime = None
+
 class Xvfb(object):
   """Class to start and stop Xvfb if relevant.  Nop if not Linux."""
 
@@ -194,8 +213,11 @@ def Dispatch(options):
     xvfb.Start()
 
   if options.use_emulator:
+    t = TimeProfile('Emulator launch')
     buildbot_emulator = emulator.Emulator()
+    buildbot_emulator.Reset()
     buildbot_emulator.Launch()
+    t.Stop()
     attached_devices.append(buildbot_emulator.device)
   else:
     attached_devices = android_commands.GetAttachedDevices()