[Findit] Initial code of findit for crash. Add scorers to apply heuristic rules.

appengine/findit/crash/test/crash_test_suite.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 testing_utils import testing
+from crash.test.stacktrace_test_suite import StacktraceTestSuite
+
+
+class CrashTestSuite(StacktraceTestSuite):  # pragma: no cover.
+
+  def _VerifyTwoStackInfosEqual(self, infos1, infos2):
+    self.assertEqual(len(infos1), len(infos2))
+
+    for (frame1, priority1), (frame2, priority2) in zip(infos1, infos2):
+      self.assertEqual(priority1, priority2)
+      self._VerifyTwoStackFramesEqual(frame1, frame2)
+
+  def _VerifyTwoBlamesEqual(self, blame1, blame2):
+    self.assertEqual(blame1.revision, blame2.revision)
+    self.assertEqual(blame1.path, blame2.path)
+    map(self.assertEqual, blame1.ToDict()['regions'],
+        blame2.ToDict()['regions'])
+
+  def _VerifyTwoChangeLogsEqual(self, changelog1, changelog2):
+    self.assertEqual(changelog1.ToDict(), changelog2.ToDict())
+
+  def _VerifyTwoResultEqual(self, result1, result2):
+    self._VerifyTwoChangeLogsEqual(result1.changelog, result2.changelog)
+    self.assertEqual(result1.dep_path, result2.dep_path)
+    self.assertEqual(result1.component, result2.component)
+    self.assertEqual(result1.confidence, result2.confidence)
+    self.assertEqual(result1.reason, result2.reason)
+    self.assertEqual(len(result1.file_to_stack_infos),
+                     len(result2.file_to_stack_infos))
+
+    for (file_path1, stack_infos1), (file_path2, stack_infos2) in zip(
+        result1.file_to_stack_infos.iteritems(),
+        result2.file_to_stack_infos.iteritems()):
+      self.assertEqual(file_path1, file_path2)
+      self._VerifyTwoStackInfosEqual(stack_infos1, stack_infos2)
+
+  def _VerifyTwoMatchResultEqual(self, match_result1, match_result2):
+    self.assertEqual(match_result1.min_distance, match_result2.min_distance)
+    self._VerifyTwoResultEqual(match_result1, match_result2)
+
+  def _VerifyTwoMatchResultsEqual(self, match_results1, match_results2):
+    self.assertEqual(match_results1.ignore_cls, match_results2.ignore_cls)
+
+    self.assertEqual(len(match_results1), len(match_results2))
+    for revision1, match_result1 in match_results1.iteritems():
+      self.assertTrue(revision1 in match_results2)
+      self._VerifyTwoMatchResultEqual(match_result1, match_results2[revision1])