[Instrumentation Test Speed] Install apks in parallel with concurrent_adb enabled

build/android/pylib/local/device/local_device_instrumentation_test_run.py

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging
 import os
 import posixpath
 import re
 import time
 
@@ skipping 57 matching lines @@
   #override
   def TestPackage(self):
     return self._test_instance.suite
 
   #override
   def SetUp(self):
     @local_device_environment.handle_shard_failures_with(
         self._env.BlacklistDevice)
     @trace_event.traced
     def individual_device_set_up(dev, host_device_tuples):
-      def install_apk():
-        if self._test_instance.apk_under_test:
-          if self._test_instance.apk_under_test_incremental_install_script:
-            local_device_test_run.IncrementalInstall(
-                dev,
-                self._test_instance.apk_under_test,
-                self._test_instance.apk_under_test_incremental_install_script)
-          else:
-            permissions = self._test_instance.apk_under_test.GetPermissions()
-            dev.Install(self._test_instance.apk_under_test,
-                        permissions=permissions)
+      steps = []
+      def install_helper(apk, permissions):
+        return lambda: dev.Install(apk, permissions=permissions)

[mikecase (-- gone --), 2017/04/08 00:50:12]

super nit: I think you should put empty line after install_helper() definition

[shenghuazhang, 2017/04/08 01:29:35]

Done.

+      if self._test_instance.apk_under_test:
+        if self._test_instance.apk_under_test_incremental_install_script:
+          steps.append(lambda: local_device_test_run.IncrementalInstall(
+                                   dev,
+                                   self._test_instance.apk_under_test,
+                                   self._test_instance.
+                                   apk_under_test_incremental_install_script))

[mikecase (-- gone --), 2017/04/08 00:50:12]

nit: i think this line should be intented more than the line above it. Not sure
if that pushes it above 80 chars. If so, you might have to put lambda on a new
line.

[shenghuazhang, 2017/04/08 01:29:35]

This change pushes above 80 characters. Will move the lambda to a new line.

+        else:
+          permissions = self._test_instance.apk_under_test.GetPermissions()
+          steps.append(install_helper(self._test_instance.apk_under_test,
+                                      permissions))
 
-        if self._test_instance.test_apk_incremental_install_script:
-          local_device_test_run.IncrementalInstall(
-              dev,
-              self._test_instance.test_apk,
-              self._test_instance.test_apk_incremental_install_script)
-        else:
-          permissions = self._test_instance.test_apk.GetPermissions()
-          dev.Install(self._test_instance.test_apk, permissions=permissions)
+      if self._test_instance.test_apk_incremental_install_script:
+        steps.append(lambda: local_device_test_run.IncrementalInstall(
+                                 dev,
+                                 self._test_instance.test_apk,
+                                 self._test_instance.
+                                 test_apk_incremental_install_script))

[mikecase (-- gone --), 2017/04/08 00:50:12]

nit: i think this line should be intented more than the line above it. Not sure
if that pushes it above 80 chars. If so, you might have to put lambda on a new
line.

[shenghuazhang, 2017/04/08 01:29:35]

This one is fine.

+      else:
+        permissions = self._test_instance.test_apk.GetPermissions()
+        steps.append(install_helper(self._test_instance.test_apk,
+                                    permissions))
 
-        for apk in self._test_instance.additional_apks:
-          dev.Install(apk)
+      steps.extend([install_helper(apk, None)
+                    for apk in self._test_instance.additional_apks])
 
+      def set_debug_app():
         # Set debug app in order to enable reading command line flags on user
         # builds
         if self._test_instance.flags:
           if not self._test_instance.package_info:
             logging.error("Couldn't set debug app: no package info")
           elif not self._test_instance.package_info.package:
             logging.error("Couldn't set debug app: no package defined")
           else:
             dev.RunShellCommand(['am', 'set-debug-app', '--persistent',
                                   self._test_instance.package_info.package],
@@ skipping 46 matching lines @@
             logging.error("Couldn't set flags: no cmdline_file")
           else:
             self._CreateFlagChangerIfNeeded(dev)
             logging.debug('Attempting to set flags: %r',
                           self._test_instance.flags)
             self._flag_changers[str(dev)].AddFlags(self._test_instance.flags)
 
         valgrind_tools.SetChromeTimeoutScale(
             dev, self._test_instance.timeout_scale)
 
-      steps = (install_apk, edit_shared_prefs, push_test_data,
-               create_flag_changer)
+      steps += [set_debug_app, edit_shared_prefs, push_test_data,
+                create_flag_changer]
       if self._env.concurrent_adb:
         reraiser_thread.RunAsync(steps)
       else:
         for step in steps:
           step()
       if self._test_instance.store_tombstones:
         tombstones.ClearAllTombstones(dev)
 
     self._env.parallel_devices.pMap(
         individual_device_set_up,
@@ skipping 251 matching lines @@
       if k in annotations:
         timeout = v
         break
     else:
       logging.warning('Using default 1 minute timeout for %s', test_name)
       timeout = 60
 
     timeout *= cls._GetTimeoutScaleFromAnnotations(annotations)
 
     return timeout