convert usage of fail* to assert*
diff --git a/Lib/test/test_property.py b/Lib/test/test_property.py
index 7a8003f..684f8fe 100644
--- a/Lib/test/test_property.py
+++ b/Lib/test/test_property.py
@@ -86,8 +86,8 @@
         self.assertEqual(base.spam, 10)
         self.assertEqual(base._spam, 10)
         delattr(base, "spam")
-        self.assert_(not hasattr(base, "spam"))
-        self.assert_(not hasattr(base, "_spam"))
+        self.assertTrue(not hasattr(base, "spam"))
+        self.assertTrue(not hasattr(base, "_spam"))
         base.spam = 20
         self.assertEqual(base.spam, 20)
         self.assertEqual(base._spam, 20)