[Predator] Switch from anonymous dict to CrashData.

appengine/findit/handlers/crash/test/crash_handler_test.py

 # Copyright 2015 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 base64
 import copy
 import json
 import logging
 
 from google.appengine.api import app_identity
 from google.appengine.ext import ndb
 import webapp2
 from webtest.app import AppError
 
 from common import chrome_dependency_fetcher
 from crash import crash_pipeline
+from crash.crash_buffer import CrashBuffer
+from crash.crash_pipeline import CrashWrapperPipeline
 from crash.findit import Findit
 from crash.findit_for_chromecrash import FinditForFracas
 from crash.test.predator_testcase import PredatorTestCase
 from crash.type_enums import CrashClient
 from handlers.crash import crash_handler
 from libs.gitiles import gitiles_repository
 from model import analysis_status
-from model.crash.fracas_crash_analysis import FracasCrashAnalysis
-
-
-MOCK_GET_REPOSITORY = lambda _: None # pragma: no cover
-
-
-class MockCulprit(object):
-  """Construct a fake culprit where ``ToDicts`` returns whatever we please."""
-
-  def __init__(self, mock_result, mock_tags):
-    self._result = mock_result
-    self._tags = mock_tags
-
-  def ToDicts(self): # pragma: no cover
-    return self._result, self._tags
+from model.crash.crash_analysis import CrashAnalysis
+from model.crash.crash_config import CrashConfig
 
 
 class CrashHandlerTest(PredatorTestCase):
   app_module = webapp2.WSGIApplication([
       ('/_ah/push-handlers/crash/fracas', crash_handler.CrashHandler),
   ], debug=True)
 
-  def testScheduleNewAnalysisWithFailingPolicy(self):
-    class _MockFindit(Findit): # pylint: disable=W0223
-      def __init__(self):
-        super(_MockFindit, self).__init__(MOCK_GET_REPOSITORY)
+  def testDoNotScheduleNewAnalysisIfNeedsNewAnalysisReturnsFalse(self):
+    mock_findit = self.GetMockFindit()
+    self.mock(mock_findit, 'NeedsNewAnalysis', lambda _: False)
+    self.mock(crash_pipeline, 'FinditForClientID', lambda *_: mock_findit)
+    # Check policy failed due to empty client config.
+    self.assertFalse(crash_handler.ScheduleNewAnalysis(
+        self.GetDummyCrashData()))
 
-      def CheckPolicy(self, crash_data):
-        """This is the same as inherited, but just to be explicit."""
-        return None
+  def testScheduleNewAnalysisIfNeedsNewAnalysisReturnsTrue(self):
+    mock_findit = self.GetMockFindit(client_id=CrashClient.FRACAS)
+    self.mock(mock_findit, 'NeedsNewAnalysis', lambda _: True)
+    self.mock(crash_pipeline, 'FinditForClientID', lambda *_: mock_findit)
+    self.assertTrue(crash_handler.ScheduleNewAnalysis(self.GetDummyCrashData(
+        client_id=CrashClient.FRACAS)))
 
-      def _NeedsNewAnalysis(self, _crash_data):
-        raise AssertionError('testScheduleNewAnalysisWithFailingPolicy: '
-            "called _MockFindit._NeedsNewAnalysis, when it shouldn't.")
-
-    self.mock(crash_pipeline, 'FinditForClientID', lambda *_: _MockFindit())
-    self.assertFalse(crash_handler.ScheduleNewAnalysis(self.GetDummyCrashData(
-        client_id = 'MOCK_CLIENT')))
-
-  def testScheduleNewAnalysisWithPlatformRename(self):
-    original_crash_data = self.GetDummyCrashData(
-        client_id = 'MOCK_CLIENT',
-        version = None,
-        platform = 'unix',
-        crash_identifiers = {})
-    renamed_crash_data = copy.deepcopy(original_crash_data)
-    renamed_crash_data['platform'] = 'linux'
-
-    testcase = self
-    class _MockFindit(Findit): # pylint: disable=W0223
-      def __init__(self):
-        super(_MockFindit, self).__init__(MOCK_GET_REPOSITORY)
-
-      @property
-      def config(self):
-        """Make PlatformRename work as expected."""
-        return {'platform_rename': {'unix': 'linux'}}
-
-      def CheckPolicy(self, crash_data):
-        """Call PlatformRename, and return successfully.
-
-        N.B., if we did not override this method, then our overridden
-        ``_NeedsNewAnalysis`` would never be called either."""
-        # TODO(wrengr): should we clone ``crash_data`` rather than mutating it?
-        crash_data['platform'] = self.RenamePlatform(crash_data['platform'])
-        return crash_data
-
-      def _NeedsNewAnalysis(self, new_crash_data):
-        logging.debug('Called _MockFindit._NeedsNewAnalysis, as desired')
-        testcase.assertDictEqual(new_crash_data, renamed_crash_data)
-        return False
-
-    self.mock(crash_pipeline, 'FinditForClientID',
-        lambda _client_id, repository: _MockFindit())
-    self.assertFalse(crash_handler.ScheduleNewAnalysis(original_crash_data))
-
-  def testScheduleNewAnalysisSkipsUnsupportedChannel(self):
-    self.assertFalse(crash_handler.ScheduleNewAnalysis(self.GetDummyCrashData(
-        client_id = CrashClient.FRACAS,
-        version = None,
-        signature = None,
-        crash_identifiers = {},
-        channel = 'unsupported_channel')))
-
-  def testScheduleNewAnalysisSkipsUnsupportedPlatform(self):
-    self.assertFalse(crash_handler.ScheduleNewAnalysis(self.GetDummyCrashData(
-        client_id = CrashClient.FRACAS,
-        version = None,
-        signature = None,
-        platform = 'unsupported_platform',
-        crash_identifiers = {})))
-
-  def testScheduleNewAnalysisSkipsBlackListSignature(self):
-    self.assertFalse(crash_handler.ScheduleNewAnalysis(self.GetDummyCrashData(
-        client_id = CrashClient.FRACAS,
-        version = None,
-        signature = 'Blacklist marker signature',
-        crash_identifiers = {})))
-
-  def testScheduleNewAnalysisSkipsIfAlreadyCompleted(self):
-    findit_client = FinditForFracas(MOCK_GET_REPOSITORY)
-    crash_data = self.GetDummyCrashData(client_id = findit_client.client_id)
-    crash_identifiers = crash_data['crash_identifiers']
-    analysis = findit_client.CreateAnalysis(crash_identifiers)
-    analysis.status = analysis_status.COMPLETED
-    analysis.put()
-    self.assertFalse(crash_handler.ScheduleNewAnalysis(crash_data))
-
-  def testAnalysisScheduled(self):
-    # We need to mock out the method on Findit itself (rather than using a
-    # subclass), since this method only gets called on objects we
-    # ourselves don't construct.
-    requested_crashes = []
-    def _MockScheduleNewAnalysis(crash_data):
-      requested_crashes.append(crash_data)
-    self.mock(crash_handler, 'ScheduleNewAnalysis', _MockScheduleNewAnalysis)
-
-    self.mock_current_user(user_email='test@chromium.org', is_admin=True)
-
-    channel = 'supported_channel'
-    platform = 'supported_platform'
+  def testHandlePostScheduleNewAnalysis(self):
+    chrome_version = '50.2500.0.0'
     signature = 'signature/here'
-    chrome_version = '50.2500.0.0'
-    crash_data = {
-        'client_id': 'fracas',
-        'platform': platform,
-        'signature': signature,
-        'stack_trace': 'frame1\nframe2\nframe3',
-        'chrome_version': chrome_version,
-        'crash_identifiers': {
-            'chrome_version': chrome_version,
-            'signature': signature,
-            'channel': channel,
-            'platform': platform,
-            'process_type': 'renderer',
-        },
-        'customized_data': {
-            'channel': channel,
-            'historical_metadata':
-                [{'chrome_version': chrome_version, 'cpm': 0.6}],
-        },
-    }
+    channel = 'canary'
+    platform = 'mac'
+    crash_data = self.GetDummyCrashData(
+        client_id=CrashClient.FRACAS,
+        channel=channel, platform=platform,
+        signature=signature, version=chrome_version,
+        crash_identifiers={'chrome_version': chrome_version,
+                           'signature': signature,
+                           'channel': channel,
+                           'platform': platform,
+                           'process_type': 'renderer'})
 
     request_json_data = {
         'message': {
             'data': base64.b64encode(json.dumps(crash_data)),
             'message_id': 'id',
         },
         'subscription': 'subscription',
     }
 
+    self.MockPipeline(
+        CrashWrapperPipeline, True,
+        (crash_data['client_id'], crash_data['crash_identifiers']))
+    self.mock(CrashAnalysis, 'Initialize', lambda *_: None)
+
     self.test_app.post_json('/_ah/push-handlers/crash/fracas',
                             request_json_data)
-
-    self.assertEqual(1, len(requested_crashes))
-    self.assertEqual(crash_data, requested_crashes[0])
-
-  # TODO: this function is a gross hack. We should figure out what the
-  # semantic goal really is here, so we can avoid doing such intricate
-  # and fragile mocking.
-  def _TestRunningAnalysisForResult(self, analysis_result, analysis_tags):
-
-    # Mock out the part of PublishResultPipeline that would go over the wire.
-    pubsub_publish_requests = []
-    def Mocked_PublishMessagesToTopic(messages_data, topic):
-      pubsub_publish_requests.append((messages_data, topic))
-    self.mock(crash_pipeline.pubsub_util, 'PublishMessagesToTopic',
-              Mocked_PublishMessagesToTopic)
-
-    MOCK_HOST = 'host.com'
-    self.mock(app_identity, 'get_default_version_hostname', lambda: MOCK_HOST)
-
-    testcase = self
-    MOCK_KEY = 'MOCK_KEY'
-
-    # Mock out the wrapper pipeline, so call the other pipelines directly
-    # instead of doing the yielding loop and spawning off processes.
-    def mock_start_pipeline(self, **kwargs):
-      logging.info('Mock running on queue %s', kwargs['queue_name'])
-      analysis_pipeline = crash_pipeline.CrashAnalysisPipeline(
-          self._client_id, self._crash_identifiers)
-      analysis_pipeline.run()
-      analysis_pipeline.finalized()
-
-      testcase.mock(ndb.Key, 'urlsafe', lambda _self: MOCK_KEY)
-      publish_pipeline = crash_pipeline.PublishResultPipeline(
-          self._client_id, self._crash_identifiers)
-      publish_pipeline.run()
-      publish_pipeline.finalized()
-    self.mock(crash_pipeline.CrashWrapperPipeline, 'start', mock_start_pipeline)
-
-    # Mock out FindCulprit to track the number of times it's called and
-    # with which arguments. N.B., the pipeline will reconstruct Findit
-    # objects form their client_id, so we can't mock via subclassing,
-    # we must mock via ``self.mock``.
-    mock_culprit = MockCulprit(analysis_result, analysis_tags)
-    analyzed_crashes = []
-    def _MockFindCulprit(_self, model):
-        analyzed_crashes.append(model)
-        return mock_culprit
-    self.mock(FinditForFracas, 'FindCulprit', _MockFindCulprit)
-
-    # The real ``ParseStacktrace`` calls ``GetChromeDependency``,
-    # which eventually calls ``GitRepository.GetSource`` and hence
-    # goes over the wire. Since we mocked out ``FindCulprit`` to no
-    # longer call ``ParseStacktrace``, it shouldn't matter what the real
-    # ``ParseStacktrace`` does. However, since mocking is fragile and it's
-    # hard to triage what actually went wrong if we do end up going over
-    # the wire, we mock this out too just to be safe.
-    def _MockParseStacktrace(_self, _model):
-      raise AssertionError("ParseStacktrace shouldn't ever be called. "
-          'That it was indicates some sort of problem with our mocking code.')
-    self.mock(FinditForFracas, 'ParseStacktrace', _MockParseStacktrace)
-
-    # More directly address the issue about ``GetChromeDependency`` going
-    # over the wire.
-    def _MockGetChromeDependency(_self, _revision, _platform):
-      raise AssertionError("GetChromeDependency shouldn't ever be called. "
-          'That it was indicates some sort of problem with our mocking code.')
-    self.mock(chrome_dependency_fetcher.ChromeDependencyFetcher,
-        'GetDependency', _MockGetChromeDependency)
-
-    crash_data = self.GetDummyCrashData(
-        client_id = CrashClient.FRACAS,
-        version = '50.2500.0.1',
-        stack_trace = 'frame1\nframe2\nframe3')
-    self.assertTrue(crash_handler.ScheduleNewAnalysis(crash_data))
-
-    # The catch/re-raise is to clean up the callstack that's reported
-    # when things acciddentally go over the wire (and subsequently fail).
-    try:
-      self.execute_queued_tasks()
-    except AppError, e: # pragma: no cover
-      raise e
-
-    self.assertEqual(1, len(pubsub_publish_requests))
-
-    processed_analysis_result = copy.deepcopy(analysis_result)
-    processed_analysis_result['feedback_url'] = (
-        'https://%s/crash/fracas-result-feedback?key=%s' % (MOCK_HOST,
-                                                            MOCK_KEY))
-
-    for cl in processed_analysis_result.get('suspected_cls', []):
-      cl['confidence'] = round(cl['confidence'], 2)
-      cl.pop('reasons', None)
-
-    expected_messages_data = [json.dumps({
-            'crash_identifiers': crash_data['crash_identifiers'],
-            'client_id': CrashClient.FRACAS,
-            'result': processed_analysis_result,
-        }, sort_keys=True)]
-    self.assertListEqual(expected_messages_data, pubsub_publish_requests[0][0])
-    self.assertEqual(1, len(analyzed_crashes))
-    analysis = analyzed_crashes[0]
-    self.assertTrue(isinstance(analysis, FracasCrashAnalysis))
-    self.assertEqual(crash_data['signature'], analysis.signature)
-    self.assertEqual(crash_data['platform'], analysis.platform)
-    self.assertEqual(crash_data['stack_trace'], analysis.stack_trace)
-    self.assertEqual(crash_data['chrome_version'], analysis.crashed_version)
-    self.assertEqual(crash_data['regression_range'], analysis.regression_range)
-
-    analysis = FracasCrashAnalysis.Get(crash_data['crash_identifiers'])
-    self.assertEqual(analysis_result, analysis.result)
-    return analysis
-
-  def testRunningAnalysis(self):
-    analysis_result = {
-        'found': True,
-        'suspected_cls': [],
-        'other_data': 'data',
-    }
-    analysis_tags = {
-        'found_suspects': True,
-        'has_regression_range': True,
-        'solution': 'core',
-        'unsupported_tag': '',
-    }
-
-    analysis = self._TestRunningAnalysisForResult(
-        analysis_result, analysis_tags)
-    self.assertTrue(analysis.has_regression_range)
-    self.assertTrue(analysis.found_suspects)
-    self.assertEqual('core', analysis.solution)
-
-  def testRunningAnalysisNoSuspectsFound(self):
-    analysis_result = {
-        'found': False
-    }
-    analysis_tags = {
-        'found_suspects': False,
-        'has_regression_range': False,
-        'solution': 'core',
-        'unsupported_tag': '',
-    }
-
-    analysis = self._TestRunningAnalysisForResult(
-        analysis_result, analysis_tags)
-    self.assertFalse(analysis.has_regression_range)
-    self.assertFalse(analysis.found_suspects)
-    self.assertEqual('core', analysis.solution)
-
-  def testRunningAnalysisWithSuspectsCls(self):
-    analysis_result = {
-        'found': True,
-        'suspected_cls': [
-            {'confidence': 0.21434,
-             'reasons': ['reason1', 'reason2'],
-             'other': 'data'}
-        ],
-        'other_data': 'data',
-    }
-    analysis_tags = {
-        'found_suspects': True,
-        'has_regression_range': True,
-        'solution': 'core',
-        'unsupported_tag': '',
-    }
-
-    analysis = self._TestRunningAnalysisForResult(
-        analysis_result, analysis_tags)
-    self.assertTrue(analysis.has_regression_range)
-    self.assertTrue(analysis.found_suspects)
-    self.assertEqual('core', analysis.solution)