[chromedriver] Implement command: executeAsyncScript and setScriptTimeout

chrome/test/chromedriver/run_py_tests.py

 #!/usr/bin/env python
 # 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.
 
 """End to end tests for ChromeDriver."""
 
 import base64
 import ctypes
 import optparse
@@ skipping 129 matching lines @@
               'return {stuff: document.querySelectorAll("div")};')
     stuff = self._driver.ExecuteScript(script)['stuff']
     script = 'return arguments[0].innerHTML + arguments[1].innerHTML'
     self.assertEquals(
         'bc', self._driver.ExecuteScript(script, stuff[0], stuff[1]))
 
   def testEvaluateInvalidScript(self):
     self.assertRaises(chromedriver.ChromeDriverException,
                       self._driver.ExecuteScript, '{{{')
 
+  def testExecuteAsyncScript(self):
+    self._driver.SetTimeout('script', 3000)
+    self.assertRaises(
+        chromedriver.ScriptTimeout,
+        self._driver.ExecuteAsyncScript,
+        'var callback = arguments[0];'
+        'setTimeout(function(){callback(1);}, 10000);')
+    self.assertEquals(
+        2,
+        self._driver.ExecuteAsyncScript(
+            'var callback = arguments[0];'
+            'setTimeout(function(){callback(2);}, 300);'))
+
   def testSwitchToFrame(self):
     self._driver.ExecuteScript(
         'var frame = document.createElement("iframe");'
         'frame.id="id";'
         'frame.name="name";'
         'document.body.appendChild(frame);')
     self.assertTrue(self._driver.ExecuteScript('return window.top == window'))
     self._driver.SwitchToFrame('id')
     self.assertTrue(self._driver.ExecuteScript('return window.top != window'))
     self._driver.SwitchToMainFrame()
@@ skipping 269 matching lines @@
   global _ANDROID_PACKAGE
   _ANDROID_PACKAGE = options.android_package
 
   all_tests_suite = unittest.defaultTestLoader.loadTestsFromModule(
       sys.modules[__name__])
   tests = unittest_util.FilterTestSuite(all_tests_suite, options.filter)
   ChromeDriverTest.GlobalSetUp()
   result = unittest.TextTestRunner(stream=sys.stdout).run(tests)
   ChromeDriverTest.GlobalTearDown()
   sys.exit(len(result.failures) + len(result.errors))