Implementation of AutomationEventQueue and associated framework to support generic non-blocking aut…

chrome/test/functional/apptest.py

Index: chrome/test/functional/apptest.py
diff --git a/chrome/test/functional/apptest.py b/chrome/test/functional/apptest.py
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+# 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 json
+
+import pyauto_functional  # must be imported before pyauto
+import pyauto
+
+
+class PyAutoEventsTest(pyauto.PyUITest):
+
+  def testBasicEvents(self):
+    """Basic test for the event queue."""
+    url = self.GetHttpURLForDataPath('apptest', 'basic.html')
+    driver = self.NewWebDriver()
+    event_id = self.AddDomRaisedEventObserver();
+    self.NavigateToURL(url)
+    self._ExpectEvent(event_id, 'init')
+    self._ExpectEvent(event_id, 'login ready')
+    driver.find_element_by_id('login').click()
+    self._ExpectEvent(event_id, 'login start')
+    self._ExpectEvent(event_id, 'login done')
+
+  def _ExpectEvent(self, event_id, event_name):
+    # TODO(craigdh): Temporary hack to ignore unexpected events generated by
+    # chromedriver's use of DomAutomationController. The upcoming revision to
+    # RaisedEvents will fix this. Note this isn't polling, just ignoring
+    # chromedriver events.
+    while True:
+      event = json.loads(self.GetNextEvent(event_id).get('name'))
+      if event.find('{') == -1:
+        break
+    self.assertEqual(event, event_name)
+
+
+if __name__ == '__main__':
+  pyauto_functional.Main()