Telemetry media Seek action and metrics.

tools/telemetry/telemetry/page/actions/seek_unittest.py

Index: tools/telemetry/telemetry/page/actions/seek_unittest.py
diff --git a/tools/telemetry/telemetry/page/actions/seek_unittest.py b/tools/telemetry/telemetry/page/actions/seek_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..9b27baf17a050121a531d55481269e201de23e20
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+++ b/tools/telemetry/telemetry/page/actions/seek_unittest.py
@@ -0,0 +1,76 @@
+# 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.
+
+from telemetry.core import util
+from telemetry.page.actions import seek
+from telemetry.unittest import tab_test_case
+
+AUDIO_1_SEEKED_CHECK = 'window.__hasEventCompleted("#audio_1", "seeked");'
+VIDEO_1_SEEKED_CHECK = 'window.__hasEventCompleted("#video_1", "seeked");'
+
+
+class SeekActionTest(tab_test_case.TabTestCase):
+
+  def setUp(self):
+    tab_test_case.TabTestCase.setUp(self)
+    self._browser.SetHTTPServerDirectories(util.GetUnittestDataDir())
+    self._tab.Navigate(self._browser.http_server.UrlOf('video_test.html'))
+    self._tab.WaitForDocumentReadyStateToBeComplete()
+
+  def testSeekWithNoSelector(self):
+    """Tests that with no selector Seek  action seeks first media element."""
+    data = {'wait_for_seeked': True, 'seek_time': 1}
+    action = seek.SeekAction(data)
+    action.WillRunAction(None, self._tab)
+    action.RunAction(None, self._tab, None)
+    # Assert only first video has played.
+    self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_SEEKED_CHECK))
+
+  def testSeekWithVideoSelector(self):
+    """Tests that Seek action seeks video element matching selector."""
+    data = {'selector': '#video_1', 'wait_for_seeked': True, 'seek_time': 1}
+    action = seek.SeekAction(data)
+    action.WillRunAction(None, self._tab)
+    # Both videos not playing before running action.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_SEEKED_CHECK))
+    action.RunAction(None, self._tab, None)
+    # Assert only video matching selector has played.
+    self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_SEEKED_CHECK))
+
+  def testSeekWithAllSelector(self):
+    """Tests that Seek action seeks all video elements with selector='all'."""
+    data = {'selector': 'all', 'wait_for_seeked': True, 'seek_time': 1}
+    action = seek.SeekAction(data)
+    action.WillRunAction(None, self._tab)
+    # Both videos not playing before running action.
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
+    self.assertFalse(self._tab.EvaluateJavaScript(AUDIO_1_SEEKED_CHECK))
+    action.RunAction(None, self._tab, None)
+    # Assert all media elements played.
+    self.assertTrue(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
+    self.assertTrue(self._tab.EvaluateJavaScript(AUDIO_1_SEEKED_CHECK))
+
+  def testSeekWaitForSeekTimeout(self):
+    """Tests that wait_for_seeked timeouts if video does not seek."""
+    data = {'selector': '#video_1',
+            'wait_for_seeked': True,
+            'wait_timeout': 1,
+            'seek_time': 1}
+    action = seek.SeekAction(data)
+    action.WillRunAction(None, self._tab)
+    self._tab.EvaluateJavaScript('document.getElementById("video_1").src = ""')
+    self.assertFalse(self._tab.EvaluateJavaScript(VIDEO_1_SEEKED_CHECK))
+    self.assertRaises(util.TimeoutException, action.RunAction, None, self._tab,
+                      None)
+
+  def testSeekWithoutSeekTime(self):
+    """Tests that seek action fails with no seek time."""
+    data = {'wait_for_seeked': True}
+    action = seek.SeekAction(data)
+    action.WillRunAction(None, self._tab)
+    self.assertRaises(AssertionError, action.RunAction, None, self._tab,
+                      None)