[Findit] Pass changed files info to Fracas, 2 face design.

appengine/findit/crash/scorers/test/aggregators_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 crash.callstack import StackFrame
+from crash.results import MatchResult
+from crash.scorers import aggregators
+from crash.scorers.min_distance import MinDistance
+from crash.scorers.test.scorer_test_suite import ScorerTestSuite
+from crash.scorers.top_frame_index import TopFrameIndex
+
+
+class AggregatorsTest(ScorerTestSuite):
+
+  def testMultiplier(self):
+    aggregator = aggregators.Multiplier()
+    self.assertEqual(aggregator.Aggregate([1, 0.5, 0.2]), 0.1)
+    self.assertEqual(aggregator([None, None]), None)
+    self.assertEqual(aggregator([1, 0.5, 0.2]), 0.1)
+
+  def testIdentityAggregator(self):
+    aggregator = aggregators.IdentityAggregator()
+    self.assertEqual(aggregator.Aggregate([1, 0.5, 0.2]), [1, 0.5, 0.2])
+    self.assertEqual(aggregator([1, 0.5, 0.2]), [1, 0.5, 0.2])
+
+  def testChangedFilesAggregator(self):
+    aggregator = aggregators.ChangedFilesAggregator()
+    file_info_list = [
+        [
+            {'file': 'f1.cc', 'blame_url': 'https://repo_url',
+             'info': 'scorer 1'},
+            {'file': 'f2.cc', 'blame_url': 'https://repo_url',
+             'info': 'scorer 1'},
+        ],
+         [
+            {'file': 'f1.cc', 'blame_url': 'https://repo_url',
+             'info': None},
+            {'file': 'f2.cc', 'blame_url': 'https://repo_url',
+             'info': 'scorer 2'},
+        ],
+    ]
+    self.assertEqual(aggregator(file_info_list),
+                     [{'file': 'f1.cc', 'blame_url': 'https://repo_url',
+                       'info': 'scorer 1'},
+                      {'file': 'f2.cc', 'blame_url': 'https://repo_url',
+                       'info': 'scorer 1\nscorer 2'}])
+
+