[Predator] Switch from anonymous dict to CrashData.

appengine/findit/model/crash/test/chrome_crash_analysis_test.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.
 
 from datetime import datetime
 
+from crash.chrome_crash_buffer import ChromeCrashBuffer
 from crash.test.predator_testcase import PredatorTestCase
 from model import analysis_status
 from model import result_status
 from model.crash.chrome_crash_analysis import ChromeCrashAnalysis
 
 
 class ChromeCrashAnalysisTest(PredatorTestCase):
 
   def testDoNotUseIdentifiersToSetProperties(self):
     crash_identifiers = {
@@ skipping 19 matching lines @@
 
   def testChromeCrashAnalysisCustomizedProperty(self):
     analysis = ChromeCrashAnalysis()
     analysis.historical_metadata = {'chrome_version': '50.0.1200.0',
                                     'cpm': 0.5}
     analysis.channel = 'canary'
     self.assertEqual(analysis.customized_data,
                      {'historical_metadata': {'chrome_version': '50.0.1200.0',
                                               'cpm': 0.5},
                       'channel': 'canary'})
+
+  def testInitializeWithCrashBuffer(self):
+    findit = self.GetMockFindit()
+    channel = 'dummy channel'
+    historical_metadata = []
+    crash_data = self.GetDummyCrashData(channel=channel,
+                                        historical_metadata=historical_metadata)
+    class MockChromeCrashBuffer(ChromeCrashBuffer):
+
+      def __init__(self, crash_data):
+        super(MockChromeCrashBuffer, self).__init__(crash_data, None)
+
+      @property
+      def stacktrace(self):
+        return None
+
+      @property
+      def regression_range(self):
+        return None
+
+      @property
+      def dependencies(self):
+        return {}
+
+      @property
+      def dependency_rolls(self):
+        return {}
+
+    self.mock(findit, 'GetCrashBuffer',
+              lambda crash_data: MockChromeCrashBuffer(  # pylint: disable=W0108
+                  crash_data))
+
+    crash_buffer = findit.GetCrashBuffer(crash_data)
+    analysis = ChromeCrashAnalysis()
+    analysis.Initialize(crash_buffer)
+    self.assertEqual(analysis.channel, channel)
+    self.assertEqual(analysis.historical_metadata, historical_metadata)