8435: Crash when trying to link existing place as an enclosing place using P0001 number; added tests, updated Travis testing

.travis.yml

@@ -21,5 +21,5 @@ install:
 
 script:
     -  mkdir -p /home/travis/.gramps/grampsdb/
-    -  DJANGO_SETTINGS_MODULE=gramps.webapp.settings nosetests3 --exclude=TestcaseGenerator --exclude=exportvcard_test --exclude=plugins --exclude=vcard --exclude=merge_ref_test --exclude=test_util_test --exclude=gramps.webapp --exclude=test2_exec_CLI --exclude=widgets --exclude=gui --exclude=test3_files_in_import_dir --exclude=test_manual_run gramps
+    -  DJANGO_SETTINGS_MODULE=gramps.webapp.settings nosetests3 --exclude=TestcaseGenerator --exclude=exportvcard_test --exclude=plugins --exclude=vcard --exclude=merge_ref_test --exclude=test_util_test --exclude=gramps.webapp --exclude=test2_exec_CLI --exclude=widgets --exclude=test3_files_in_import_dir --exclude=test_manual_run gramps
 

gramps/gui/editors/editreference.py

@@ -271,6 +271,7 @@ class EditReference(ManagedWindow, DbGUIElement):
         if new_id:
             old_primary = self.db.get_from_name_and_gramps_id(type, new_id)
             if old_primary:
+                description = None
                 if type == 'Event':
                     msg1 = _("Cannot save event. ID already exists.")
                     description = old_primary.get_description()
@@ -280,6 +281,8 @@ class EditReference(ManagedWindow, DbGUIElement):
                 elif type == 'Repository':
                     msg1 = _("Cannot save repository. ID already exists.")
                     description = old_primary.get_name()
+                else:
+                    msg1 = _("Cannot save item. ID already exists.")
                 if description:
                     msg2 = _("You have attempted to use the existing Gramps "
                              "ID with value %(id)s. This value is already " 

gramps/gui/editors/test/test_editreference.py

@@ -0,0 +1,76 @@
+#
+# Gramps - a GTK+/GNOME based genealogy program
+#
+# Copyright (C) 2013 Doug Blank <doug.blank@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, 
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+
+""" Unittest for editreference.py """
+
+import unittest
+import sys
+try:
+    if sys.version_info < (3,3):
+        from mock import Mock, patch
+    else:
+        from unittest.mock import Mock, patch
+    MOCKING = True
+except:
+    MOCKING = False
+
+from  gramps.gen.lib import (Person, Family, Event, Source, Place, Citation, 
+                             Repository, MediaObject, Note, Tag)
+from gramps.gen.merge.diff import DictionaryDb
+from gramps.cli.user import User
+from gramps.gen.dbstate import DbState
+from gramps.gen.merge.diff import *
+from gramps.gui.editors.editreference import EditReference
+
+class MockWindow():
+    def set_transient_for(self, *args, **kwargs):
+        pass
+    def show_all(self):
+        pass
+
+class MockEditReference(EditReference):
+    def __init__(self, dbstate, uistate, track, source, source_ref, update):
+        self.window = MockWindow()
+        super().__init__(dbstate, uistate, track, source, source_ref, update)
+
+example = os.path.abspath(
+    os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                 "../../../..", 
+                 "example/gramps/example.gramps"))
+
+class TestEditReference(unittest.TestCase):
+    def setUp(self):
+        self.db = DictionaryDb() 
+
+    @unittest.skipUnless(MOCKING, "Requires unittest.mock to run")
+    def test_editreference(self):
+        dbstate = DbState()
+        dbstate.db = self.db
+        source = Place() 
+        source.gramps_id = "P0001"
+        self.db.place_map[source.handle] = source
+        editor = MockEditReference(dbstate, uistate=None, track=[], 
+                                   source=source, source_ref=None, update=None)
+        with patch('gramps.gui.editors.editreference.ErrorDialog') as MockED:
+            editor.check_for_duplicate_id("Place")
+            self.assertTrue(MockED.called)
+
+if __name__ == "__main__":
+    unittest.main()