[Andoid] Threaded TestRunner creation and SetUp and TearDown calls.

build/android/pylib/base/new_base_test_runner.py

 # Copyright (c) 2012 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 contextlib
 import httplib
 import logging
 import os
 import tempfile
 import time
@@ skipping 47 matching lines @@
     self.test_server_port = 0
     self.build_type = build_type
 
   def _PushTestServerPortInfoToDevice(self):
     """Pushes the latest port information to device."""
     self.adb.SetFileContents(self.adb.GetExternalStorage() + '/' +
                              NET_TEST_SERVER_PORT_INFO_FILE,
                              '%d:%d' % (self.test_server_spawner_port,
                                         self.test_server_port))
 
-  def Run(self, test):
-    """Calls subclass functions to set up test, run it and tear it down.
+  def RunTest(self, test):
+    """Runs a test. Needs to be overridden.
 
     Args:
-      test: A Test to run.
+      test: A test to run.
 
     Returns:
-      Test results returned from RunTest(test).
+      Tuple containing: (test_result.TestResults, tests to rerun or None)
     """
-    self.SetUp()
-    try:
-      return self.RunTest(test)
-    finally:
-      self.TearDown()
+    raise NotImplementedError
 
   def SetUp(self):
-    """Called before tests run."""
+    """Run once before all tests are run."""
     Forwarder.KillDevice(self.adb, self.tool)
 
-  def RunTest(self, test):
-    """Runs the tests. Needs to be overridden."""
-    raise NotImplementedError
-
   def TearDown(self):
-    """Called when tests finish running."""
+    """Run once after all tests are run."""
     self.ShutdownHelperToolsForTestSuite()
 
   def CopyTestData(self, test_data_paths, dest_dir):
     """Copies |test_data_paths| list of files/directories to |dest_dir|.
 
     Args:
       test_data_paths: A list of files or directories relative to |dest_dir|
           which should be copied to the device. The paths must exist in
           |CHROME_DIR|.
       dest_dir: Absolute path to copy to on the device.
@@ skipping 94 matching lines @@
       # Wait for 2 seconds then restart.
       time.sleep(2)
     if not server_ready:
       logging.error(';'.join(error_msgs))
       raise Exception('Can not start the test spawner server.')
     self._PushTestServerPortInfoToDevice()
     self._spawner_forwarder = self._CreateAndRunForwarder(
         self.adb,
         [(self.test_server_spawner_port, self.test_server_spawner_port)],
         self.tool, '127.0.0.1', self.build_type)