def testFirstContentfulPaintLens(self):
loading_trace = test_utils.LoadingTraceFromEvents(
[self._RequestAt(1),
self._RequestAt(10),
self._RequestAt(20)],
trace_events=[{
'ts': 0,
'ph': 'I',
'cat': 'blink.some_other_user_timing',
'name': 'firstContentfulPaint'
}, {
'ts': 9 * self.MILLI_TO_MICRO,
'ph': 'I',
'cat': 'blink.user_timing',
'name': 'firstDiscontentPaint'
}, {
'ts': 12 * self.MILLI_TO_MICRO,
'ph': 'I',
'cat': 'blink.user_timing',
'name': 'firstContentfulPaint'
}, {
'ts': 22 * self.MILLI_TO_MICRO,
'ph': 'I',
'cat': 'blink.user_timing',
'name': 'firstContentfulPaint'
}])
lens = user_satisfied_lens.FirstContentfulPaintLens(loading_trace)
self.assertEqual(set(['0.1', '0.2']), lens.CriticalRequests())
self.assertEqual(1, lens.PostloadTimeMsec())
def testFirstContentfulPaintLens(self):
MAINFRAME = 1
SUBFRAME = 2
trace_creator = test_utils.TraceCreator()
requests = [trace_creator.RequestAt(1), trace_creator.RequestAt(10),
trace_creator.RequestAt(20)]
loading_trace = trace_creator.CreateTrace(
requests,
[{'ts': 0, 'ph': 'I',
'cat': 'blink.some_other_user_timing',
'name': 'firstContentfulPaint'},
{'ts': 30 * self.MILLI_TO_MICRO, 'ph': 'I',
'cat': 'blink.user_timing',
'name': 'firstDiscontentPaint'},
{'ts': 5 * self.MILLI_TO_MICRO, 'ph': 'I',
'cat': 'blink.user_timing',
'name': 'firstContentfulPaint',
'args': {'frame': SUBFRAME} },
{'ts': 12 * self.MILLI_TO_MICRO, 'ph': 'I',
'cat': 'blink.user_timing',
'name': 'firstContentfulPaint',
'args': {'frame': MAINFRAME}}], MAINFRAME)
lens = user_satisfied_lens.FirstContentfulPaintLens(loading_trace)
self.assertEqual(set(['0.1', '0.2']), lens.CriticalRequestIds())
self.assertEqual(1, lens.PostloadTimeMsec())
def testCantGetNoSatisfaction(self):
loading_trace = test_utils.LoadingTraceFromEvents(
[self._RequestAt(1),
self._RequestAt(10),
self._RequestAt(20)],
trace_events=[{
'ts': 0,
'ph': 'I',
'cat': 'not_my_cat',
'name': 'someEvent'
}])
lens = user_satisfied_lens.FirstContentfulPaintLens(loading_trace)
self.assertEqual(set(['0.1', '0.2', '0.3']), lens.CriticalRequests())
self.assertEqual(float('inf'), lens.PostloadTimeMsec())
def testCantGetNoSatisfaction(self):
MAINFRAME = 1
trace_creator = test_utils.TraceCreator()
requests = [trace_creator.RequestAt(1), trace_creator.RequestAt(10),
trace_creator.RequestAt(20)]
loading_trace = trace_creator.CreateTrace(
requests,
[{'ts': 0, 'ph': 'I',
'cat': 'not_my_cat',
'name': 'someEvent',
'args': {'frame': MAINFRAME}}], MAINFRAME)
loading_trace.tracing_track.SetMainFrameID(MAINFRAME)
lens = user_satisfied_lens.FirstContentfulPaintLens(loading_trace)
self.assertEqual(set(['0.1', '0.2', '0.3']), lens.CriticalRequestIds())
self.assertEqual(float('inf'), lens.PostloadTimeMsec())
def main(filename):
trace = loading_trace.LoadingTrace.FromJsonFile(filename)
dependencies_lens = request_dependencies_lens.RequestDependencyLens(trace)
user_lens = user_satisfied_lens.FirstContentfulPaintLens(trace)
_PrintSumamry(trace, dependencies_lens, user_lens)
def main(filename):
trace = loading_trace.LoadingTrace.FromJsonFile(filename)
dependencies_lens = request_dependencies_lens.RequestDependencyLens(trace)
user_lens = user_satisfied_lens.FirstContentfulPaintLens(trace)
prefetch_view = PrefetchSimulationView(trace, dependencies_lens, user_lens)
_PrintSummary(prefetch_view, user_lens)