tools/android/loading: Properly detect page loading failures

tools/android/loading/tracing_unittest.py

 # Copyright 2016 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 collections
 import copy
 import logging
 import operator
 import unittest
 
@@ skipping 342 matching lines @@
     self.assertListEqual([tracing_events[0], tracing_events[3]],
                          filtered_events)
     filtered_events = self.track.Filter(categories=set(['Z'])).GetEvents()
     self.assertEquals(0, len(filtered_events))
     filtered_events = self.track.Filter(categories=set(['B', 'C'])).GetEvents()
     self.assertEquals(3, len(filtered_events))
     self.assertListEqual(tracing_events[1:], filtered_events)
     self.assertSetEqual(
         set('A'), self.track.Filter(categories=set('A')).Categories())
 
+  def testHasLoadingSucceeded(self):
+    cat = 'navigation'
+    on_navigate = 'RenderFrameImpl::OnNavigate'
+    fail_provisional = 'RenderFrameImpl::didFailProvisionalLoad'
+    fail_load = 'RenderFrameImpl::didFailLoad'
+
+    track = TracingTrack.FromJsonDict({'categories': [cat], 'events': []})
+    with self.assertRaises(AssertionError):
+      track.HasLoadingSucceeded()
+
+    track = TracingTrack.FromJsonDict({'categories': [cat], 'events': [
+        {'cat': cat, 'name': on_navigate, 'args': {'id': 1},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1}]})
+    self.assertTrue(track.HasLoadingSucceeded())
+
+    track = TracingTrack.FromJsonDict({'categories': [cat], 'events': [
+        {'cat': cat, 'name': on_navigate, 'args': {'id': 1},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1},
+        {'cat': cat, 'name': on_navigate, 'args': {'id': 2},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1},
+        {'cat': cat, 'name': fail_provisional, 'args': {'id': 2},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1}]})
+    self.assertTrue(track.HasLoadingSucceeded())
+
+    track = TracingTrack.FromJsonDict({'categories': [cat], 'events': [
+        {'cat': cat, 'name': on_navigate, 'args': {'id': 1},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1},
+        {'cat': cat, 'name': fail_provisional, 'args': {'id': 1},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1}]})
+    self.assertFalse(track.HasLoadingSucceeded())
+
+    track = TracingTrack.FromJsonDict({'categories': [cat], 'events': [
+        {'cat': cat, 'name': on_navigate, 'args': {'id': 1},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1},
+        {'cat': cat, 'name': fail_load, 'args': {'id': 1},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1}]})
+    self.assertFalse(track.HasLoadingSucceeded())
+
+    track = TracingTrack.FromJsonDict({'categories': [cat], 'events': [
+        {'cat': cat, 'name': on_navigate, 'args': {'id': 1},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1},
+        {'cat': cat, 'name': fail_load, 'args': {'id': 1},
+            'ts': 5, 'ph': 'X', 'dur': 10, 'pid': 1, 'tid': 1}]})
+    self.assertFalse(track.HasLoadingSucceeded())
+
   def _HandleEvents(self, events):
     self.track.Handle('Tracing.dataCollected', {'params': {'value': [
         self.EventToMicroseconds(e) for e in events]}})
 
 
 class IntervalTreeTestCase(unittest.TestCase):
   class FakeEvent(object):
     def __init__(self, start_msec, end_msec):
       self.start_msec = start_msec
       self.end_msec = end_msec
@@ skipping 66 matching lines @@
                    'cat': 'bar,baz,bizbiz',
                    'ph': 'X',
                    'ts': 0, 'dur': 0})
     self.assertTrue(event.Matches('bar', 'foo'))
     self.assertTrue(event.Matches('baz', 'foo'))
     self.assertFalse(event.Matches('bar', 'biz'))
     self.assertFalse(event.Matches('biz', 'foo'))
 
 if __name__ == '__main__':
   unittest.main()