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

appengine/findit/crash/scorers/test/min_distance_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 Result, MatchResult
 from crash.scorers.min_distance import MinDistance
 from crash.scorers.test.scorer_test_suite import ScorerTestSuite
 
 
 class MinDistanceTest(ScorerTestSuite):
 
   def testGetMetric(self):
     dummy_changelog = self._GetDummyChangeLog()
     match_result = MatchResult(dummy_changelog, 'src/', '')
-    match_result.min_distance = 0
+    match_result.file_to_analysis_info = {
+        'file': {'min_distance': 0, 'min_distance_frame': None}
+    }
 
     self.assertEqual(MinDistance().GetMetric(match_result), 0)
 
     result = Result(dummy_changelog, 'src/', '')
-    self.assertEqual(MinDistance().GetMetric(result), None)
+    self.assertEqual(MinDistance().GetMetric(result), float('inf'))
 
   def testScore(self):
     self.assertEqual(MinDistance().Score(0), 1)
     self.assertEqual(MinDistance().Score(30), 0.8)
     self.assertEqual(MinDistance().Score(60), 0)
 
   def testReason(self):
     self.assertEqual(MinDistance().Reason(0, 1),
-                     'Modification distance (LOC) is 0')
+                     ('MinDistance', 1, 'Minimum distance is 0'))
     self.assertEqual(MinDistance().Reason(60, 0),
-                     '')
+                     None)
+
+  def testChangedFiles(self):
+    dummy_changelog = self._GetDummyChangeLog()
+    result = MatchResult(dummy_changelog, 'src/', '')
+    frame = StackFrame(0, 'src/', 'func', 'f.cc', 'a/b/src/f.cc', [2],
+                       repo_url='https://repo_url')
+    result.file_to_stack_infos = {
+        'src/f.cc': [(frame, 0)]
+    }
+    result.file_to_analysis_info = {
+        'src/f.cc': {'min_distance': 0, 'min_distance_frame': frame}
+    }
+
+    self.assertEqual(MinDistance().ChangedFiles(result),
+                     [{'file': 'f.cc',
+                       'blame_url': ('https://repo_url/+blame/%s/f.cc#2' %
+                                     dummy_changelog.revision),
+                       'info': 'Minimum distance (LOC) 0, frame #0'}])
+