convert old fail* assertions to assert*
diff --git a/Lib/test/test_robotparser.py b/Lib/test/test_robotparser.py
index 9c47e31..cc8b390 100644
--- a/Lib/test/test_robotparser.py
+++ b/Lib/test/test_robotparser.py
@@ -22,9 +22,9 @@
             url = self.url
             agent = self.agent
         if self.good:
-            self.failUnless(self.parser.can_fetch(agent, url))
+            self.assertTrue(self.parser.can_fetch(agent, url))
         else:
-            self.failIf(self.parser.can_fetch(agent, url))
+            self.assertFalse(self.parser.can_fetch(agent, url))
 
     def __str__(self):
         return self.str