def testExtractsInterestingMetricsOnly(self):
stats_metric = webrtc_stats.WebRtcStatisticsMetric()
results = self._RunMetricOnJson(SAMPLE_JSON, stats_metric)
self.assertTrue(len(results.received_values) > 0)
self.assertIn(
'peer_connection_0', results.received_values[0].name,
'The result should be a ListOfScalarValues instance with '
'a name <peer connection id>_<statistic>.')
all_names = [value.name for value in results.received_values]
self.assertIn('peer_connection_0_audio_goog_rtt', all_names)
self.assertNotIn(
'peer_connection_1_audio_goog_rtt', all_names,
'Peer connection 1 does not have a goog-rtt in '
'the JSON above, unlike peer connection 0 which does.')
self.assertIn('peer_connection_0_video_goog_rtt', all_names)
self.assertIn('peer_connection_1_video_goog_rtt', all_names)
# The audio_audio is intentional since the code distinguishes audio reports
# from video reports (even though audio_input_level is quite obvious).
self.assertNotIn(
'peer_connection_0_audio_audio_input_level', all_names,
'Input level is in the JSON for both connections but '
'should not be reported since it is not interesting.')
self.assertNotIn('peer_connection_1_audio_audio_input_level',
all_names)
def testExtractsParticularMetricsOnlyIfSpecified(self):
only_goog_rtt_and_max_decode = ['googRtt', 'googMaxDecodeMs']
stats_metric = webrtc_stats.WebRtcStatisticsMetric(
particular_metrics=only_goog_rtt_and_max_decode)
results = self._RunMetricOnJson(SAMPLE_JSON, stats_metric)
received_names = [value.name for value in results.received_values]
expected_names = ['peer_connection_0_audio_goog_rtt',
'peer_connection_0_video_goog_rtt',
'peer_connection_1_video_goog_max_decode_ms',
'peer_connection_1_video_goog_rtt']
self.assertEqual(expected_names, received_names)
def testExtractsValuesAsTimeSeries(self):
stats_metric = webrtc_stats.WebRtcStatisticsMetric()
results = self._RunMetricOnJson(SAMPLE_JSON, stats_metric)
self.assertTrue(
results.received_values,
'Expected values for googDecodeMs and others, got none.')
self.assertEqual(results.received_values[1].name,
'peer_connection_0_audio_goog_rtt')
self.assertEqual(results.received_values[1].values, [20.0, 17.0])
self.assertEqual(results.received_values[7].name,
'peer_connection_1_video_goog_rtt')
self.assertEqual(results.received_values[7].values, [100.0, 101.0])
def _RunMetricOnJson(self, json_to_return):
stats_metric = webrtc_stats.WebRtcStatisticsMetric()
tab = simple_mock.MockObject()
page = simple_mock.MockObject()
stats_metric.Start(page, tab)
tab.ExpectCall('EvaluateJavaScript',
simple_mock.DONT_CARE).WillReturn(json_to_return)
stats_metric.Stop(page, tab)
page.url = simple_mock.MockObject()
results = FakeResults(page)
stats_metric.AddResults(tab, results)
return results
def DidStartBrowser(self, browser): self._cpu_metric = cpu.CpuMetric(browser) self._memory_metric = memory.MemoryMetric(browser) self._webrtc_stats_metric = webrtc_stats.WebRtcStatisticsMetric()
def testReturnsIfJsonIsEmpty(self):
stats_metric = webrtc_stats.WebRtcStatisticsMetric()
results = self._RunMetricOnJson('[]', stats_metric)
self.assertFalse(results.received_values)
def DidStartBrowser(self, browser):
self._cpu_metric = cpu.CpuMetric(browser)
self._webrtc_stats_metric = webrtc_stats.WebRtcStatisticsMetric(
self._particular_metrics)
def DidStartBrowser(self, browser):
self._cpu_metric = cpu.CpuMetric(browser)
if self._use_webrtc_stats:
self._webrtc_stats_metric = webrtc_stats.WebRtcStatisticsMetric()