diff --git a/Lib/test/test_msilib.py b/Lib/test/test_msilib.py
index 265eaea..fa0be58 100644
--- a/Lib/test/test_msilib.py
+++ b/Lib/test/test_msilib.py
@@ -85,6 +85,7 @@
 
     def test_directory_start_component_keyfile(self):
         db, db_path = init_database()
+        self.addCleanup(unlink, db_path)
         self.addCleanup(db.Close)
         feature = msilib.Feature(db, 0, 'Feature', 'A feature', 'Python')
         cab = msilib.CAB('CAB')
@@ -92,6 +93,14 @@
                                'SourceDir', 0)
         dir.start_component(None, feature, None, 'keyfile')
 
+    def test_getproperty_uninitialized_var(self):
+        db, db_path = init_database()
+        self.addCleanup(unlink, db_path)
+        self.addCleanup(db.Close)
+        si = db.GetSummaryInformation(0)
+        with self.assertRaises(msilib.MSIError):
+            si.GetProperty(-1)
+
 
 class Test_make_id(unittest.TestCase):
     #http://msdn.microsoft.com/en-us/library/aa369212(v=vs.85).aspx