convert old fail* assertions to assert*
diff --git a/Lib/test/test_genericpath.py b/Lib/test/test_genericpath.py
index 9d0baeb..3be9c89 100644
--- a/Lib/test/test_genericpath.py
+++ b/Lib/test/test_genericpath.py
@@ -6,7 +6,7 @@
 class AllCommonTest(unittest.TestCase):
 
     def assertIs(self, a, b):
-        self.assert_(a is b)
+        self.assertTrue(a is b)
 
     def test_commonprefix(self):
         self.assertEqual(
@@ -50,7 +50,7 @@
             f.close()
             self.assertEqual(d, b"foobar")
 
-            self.assert_(
+            self.assertTrue(
                 genericpath.getctime(support.TESTFN) <=
                 genericpath.getmtime(support.TESTFN)
             )