[Findit] Fracas crash triage dashboard

appengine/findit/crash/test/fracas_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 common import chromium_deps
 from common.dependency import DependencyRoll
 from crash import detect_regression_range
 from crash import fracas
 from crash import fracas_parser
 from crash import findit_for_crash
@@ skipping 75 matching lines @@
 
     results, tag = fracas.FindCulpritForChromeCrash(
         'signature', 'win', 'frame1\nframe2', '50.0.1234.0',
         [{'chrome_version': '50.0.1234.0', 'cpm': 0.6}])
 
     expected_results = {
           'found': True,
           'suspected_project': '',
           'suspected_components': [],
           'suspected_cls': ['DummyResultObject'],
+          'regression_range': ('50.0.1233.0', '50.0.1234.0')
     }
     expected_tag = {
           'found_suspects': True,
           'has_regression_range': True,
           'solution': 'core_algorithm',
     }
 
     self.assertEqual(expected_results, results)
     self.assertEqual(expected_tag, tag)
 
     results, tag = fracas.FindCulpritForChromeCrash(
         'signature', 'win', 'frame1\nframe2', '50.0.1234.0',
         [])
 
     expected_results = {
           'found': False,
           'suspected_project': '',
           'suspected_components': [],
           'suspected_cls': [],
+          'regression_range': None
     }
     expected_tag = {
           'found_suspects': False,
           'has_regression_range': False,
           'solution': 'core_algorithm',
     }
 
     self.assertEqual(expected_results, results)
     self.assertEqual(expected_tag, tag)