[Predator] Add ``Project`` class and ``ClassifySuspect`` method to project and component classifier

appengine/findit/libs/gitiles/test/change_log_test.py

 # Copyright 2014 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 unittest
 
 from libs.gitiles.change_log import FileChangeInfo, ChangeLog
 
 
 class ChangeLogTest(unittest.TestCase):
   def testFileChangeinfo(self):
     filechange_dict = {
         'change_type': 'copy',
         'old_path': 'a',
         'new_path': 'b'
     }
     filechange_info = FileChangeInfo.FromDict(filechange_dict)
     self.assertEqual(filechange_dict, filechange_info.ToDict())
 
+  def testFileChangeinfoChangedPathProperty(self):
+    """Test ``changed_file`` property of ``FileChangeInfo``."""
+    modified_file = FileChangeInfo.Modify('a.cc')
+    self.assertEqual(modified_file.changed_path, 'a.cc')
+
+    added_file = FileChangeInfo.Modify('a.cc')
+    self.assertEqual(added_file.changed_path, 'a.cc')
+
+    copied_file = FileChangeInfo.Copy('old.cc', 'new.cc')
+    self.assertEqual(copied_file.changed_path, 'new.cc')
+
+    deleted_file = FileChangeInfo.Delete('old.cc')
+    self.assertEqual(deleted_file.changed_path, 'old.cc')
+
   def testChangeLog(self):
     change_log_dict = {
       'author': {
           'name': 'a',
           'email': 'b@email.com',
           'time': '2014-08-13 00:53:12',
       },
       'committer': {
           'name': 'c',
           'email': 'd@email.com',
@@ skipping 14 matching lines @@
           }
       ],
       'message': 'blabla...',
       'commit_url': 'https://chromium.googlesource.com/chromium/src/+/git_hash',
       'code_review_url': 'https://codereview.chromium.org/2222',
       'reverted_revision': '8d4a4fa6s18raf3re12tg6r'
     }
 
     change_log = ChangeLog.FromDict(change_log_dict)
     self.assertEqual(change_log_dict, change_log.ToDict())