Telemetry media_measurement plus play action and tests.

tools/telemetry/telemetry/page/actions/play_unittest.py

+# Copyright (c) 2013 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 os
+
+from telemetry.core import util
+from telemetry.page.actions import play
+from telemetry.unittest import tab_test_case
+
+AUDIO_1_PLAYING_CHECK = "window.__hasEventCompleted('#audio_1', 'playing');"
+VIDEO_1_PLAYING_CHECK = "window.__hasEventCompleted('#video_1', 'playing');"
+VIDEO_1_ENDED_CHECK = "window.__hasEventCompleted('#video_1', 'ended');"
+
+
+class PlayActionTest(tab_test_case.TabTestCase):
+
+  def setUp(self):
+    tab_test_case.TabTestCase.setUp(self)
+    unittest_data_dir = os.path.join(os.path.dirname(__file__),
+                                     '..', '..', '..', 'unittest_data')
+    self._browser.SetHTTPServerDirectories(unittest_data_dir)
+    self._tab.Navigate(self._browser.http_server.UrlOf('video_test.html'))
+    self._tab.WaitForDocumentReadyStateToBeComplete()
+
+  def testPlayWithNoSelector(self):
+    """Tests that with no selector Play action plays first video element."""
+    data = {'wait_for_playing': True}
+    action = play.PlayAction(data)
+    action.WillRunAction(None, self._tab)
+    # Both videos not playing before running action.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_PLAYING_CHECK))
+    action.RunAction(None, self._tab, None)
+    # Assert only first video has played.
+    self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_PLAYING_CHECK))
+
+  def testPlayWithVideoSelector(self):
+    """Tests that Play action plays video element matching selector."""
+    data = {'selector': '#video_1', 'wait_for_playing': True}
+    action = play.PlayAction(data)
+    action.WillRunAction(None, self._tab)
+    # Both videos not playing before running action.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_PLAYING_CHECK))
+    action.RunAction(None, self._tab, None)
+    # Assert only video matching selector has played.
+    self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_PLAYING_CHECK))
+
+  def testPlayWithAllSelector(self):
+    """Tests that Play action plays all video elements with selector='all'."""
+    data = {'selector': 'all', 'wait_for_playing': True}
+    action = play.PlayAction(data)
+    action.WillRunAction(None, self._tab)
+    # Both videos not playing before running action.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_PLAYING_CHECK))
+    action.RunAction(None, self._tab, None)
+    # Assert all media elements played.
+    self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertTrue(self._tab.EvaluateJavaScript(AUDIO_1_PLAYING_CHECK))
+
+  def testPlayWaitForPlayTimeout(self):
+    """Tests that wait_for_playing timeouts if video does not play."""
+    data = {'selector': '#video_1',
+            'wait_for_playing': True,
+            'wait_timeout': 1}
+    action = play.PlayAction(data)
+    action.WillRunAction(None, self._tab)
+    self._tab.EvaluateJavaScript('document.getElementById("video_1").src = ""')
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertRaises(util.TimeoutException, action.RunAction, None, self._tab,
+                      None)
+
+  def testPlayWaitForEnded(self):
+    """Tests that wait_for_ended waits for video to end."""
+    data = {'selector': '#video_1', 'wait_for_ended': True}
+    action = play.PlayAction(data)
+    action.WillRunAction(None, self._tab)
+    # Assert video not playing before running action.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_ENDED_CHECK))
+    action.RunAction(None, self._tab, None)
+    # Assert video ended.
+    self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_ENDED_CHECK))
+
+  def testPlayWithoutWaitForEnded(self):
+    """Tests that wait_for_ended waits for video to end."""
+    data = {'selector': '#video_1', 'wait_for_ended': False}
+    action = play.PlayAction(data)
+    action.WillRunAction(None, self._tab)
+    # Assert video not playing before running action.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_ENDED_CHECK))
+    action.RunAction(None, self._tab, None)
+    # Assert video did not end.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_ENDED_CHECK))
+
+  def testPlayWaitForEndedTimeout(self):
+    """Tests that action raises exception if timeout is reached."""
+    data = {'selector': '#video_1', 'wait_for_ended': True, 'wait_timeout': 1}
+    action = play.PlayAction(data)
+    action.WillRunAction(None, self._tab)
+    # Assert video not playing before running action.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_PLAYING_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_ENDED_CHECK))
+    self.assertRaises(util.TimeoutException, action.RunAction, None, self._tab,
+                      None)
+    # Assert video did not end.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_ENDED_CHECK))