[Predator] Fix bug in min_distance after refactor and add back skip added/deleted deps.

appengine/findit/crash/test/culprit_test.py

Index: appengine/findit/crash/test/culprit_test.py
diff --git a/appengine/findit/crash/test/culprit_test.py b/appengine/findit/crash/test/culprit_test.py
new file mode 100644
index 0000000000000000000000000000000000000000..d1b3da4f6ab1b6302f7a1769cf1446e87b361e9e
--- /dev/null
+++ b/appengine/findit/crash/test/culprit_test.py
@@ -0,0 +1,39 @@
+# 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.culprit import Culprit
+from crash.test.crash_testcase import CrashTestCase
+
+
+class CulpritTest(CrashTestCase):
+
+  def testFieldsProperty(self):
+    culprit = Culprit('', ['Blink>DOM'], [], None, 'core_algorithm')
+    self.assertEqual(culprit.fields, ('project', 'components', 'cls',
+                                      'regression_range', 'algorithm'))
+  def testToDictsDroppingEmptyFields(self):
+    culprit = Culprit('', [], [], [], 'core_algorithm')
+    self.assertTupleEqual(culprit.ToDicts(),
+                          ({'found': False},
+                           {'found_suspects': False,
+                            'found_project': False,
+                            'found_components': False,
+                            'has_regression_range': False,
+                            'solution': 'core_algorithm'}))
+
+  def testToDicts(self):
+    cl = self.GetDummyChangeLog()
+    culprit = Culprit('proj', ['comp'], [cl], ['50.0.1234.1', '50.0.1234.2'],
+                      'core_algorithm')
+    self.assertTupleEqual(culprit.ToDicts(),
+                          ({'found': True,
+                            'regression_range': ['50.0.1234.1', '50.0.1234.2'],
+                            'suspected_project': 'proj',
+                            'suspected_components': ['comp'],
+                            'suspected_cls': [cl.ToDict()]},
+                           {'found_suspects': True,
+                            'found_project': True,
+                            'found_components': True,
+                            'has_regression_range': True,
+                            'solution': 'core_algorithm'}))