convert usage of fail* to assert*
diff --git a/Lib/test/test_stringprep.py b/Lib/test/test_stringprep.py
index 60425dd..15bdf87 100644
--- a/Lib/test/test_stringprep.py
+++ b/Lib/test/test_stringprep.py
@@ -8,66 +8,66 @@
 
 class StringprepTests(unittest.TestCase):
     def test(self):
-        self.failUnless(in_table_a1(u"\u0221"))
-        self.failIf(in_table_a1(u"\u0222"))
+        self.assertTrue(in_table_a1(u"\u0221"))
+        self.assertFalse(in_table_a1(u"\u0222"))
 
-        self.failUnless(in_table_b1(u"\u00ad"))
-        self.failIf(in_table_b1(u"\u00ae"))
+        self.assertTrue(in_table_b1(u"\u00ad"))
+        self.assertFalse(in_table_b1(u"\u00ae"))
 
-        self.failUnless(map_table_b2(u"\u0041"), u"\u0061")
-        self.failUnless(map_table_b2(u"\u0061"), u"\u0061")
+        self.assertTrue(map_table_b2(u"\u0041"), u"\u0061")
+        self.assertTrue(map_table_b2(u"\u0061"), u"\u0061")
 
-        self.failUnless(map_table_b3(u"\u0041"), u"\u0061")
-        self.failUnless(map_table_b3(u"\u0061"), u"\u0061")
+        self.assertTrue(map_table_b3(u"\u0041"), u"\u0061")
+        self.assertTrue(map_table_b3(u"\u0061"), u"\u0061")
 
-        self.failUnless(in_table_c11(u"\u0020"))
-        self.failIf(in_table_c11(u"\u0021"))
+        self.assertTrue(in_table_c11(u"\u0020"))
+        self.assertFalse(in_table_c11(u"\u0021"))
 
-        self.failUnless(in_table_c12(u"\u00a0"))
-        self.failIf(in_table_c12(u"\u00a1"))
+        self.assertTrue(in_table_c12(u"\u00a0"))
+        self.assertFalse(in_table_c12(u"\u00a1"))
 
-        self.failUnless(in_table_c12(u"\u00a0"))
-        self.failIf(in_table_c12(u"\u00a1"))
+        self.assertTrue(in_table_c12(u"\u00a0"))
+        self.assertFalse(in_table_c12(u"\u00a1"))
 
-        self.failUnless(in_table_c11_c12(u"\u00a0"))
-        self.failIf(in_table_c11_c12(u"\u00a1"))
+        self.assertTrue(in_table_c11_c12(u"\u00a0"))
+        self.assertFalse(in_table_c11_c12(u"\u00a1"))
 
-        self.failUnless(in_table_c21(u"\u001f"))
-        self.failIf(in_table_c21(u"\u0020"))
+        self.assertTrue(in_table_c21(u"\u001f"))
+        self.assertFalse(in_table_c21(u"\u0020"))
 
-        self.failUnless(in_table_c22(u"\u009f"))
-        self.failIf(in_table_c22(u"\u00a0"))
+        self.assertTrue(in_table_c22(u"\u009f"))
+        self.assertFalse(in_table_c22(u"\u00a0"))
 
-        self.failUnless(in_table_c21_c22(u"\u009f"))
-        self.failIf(in_table_c21_c22(u"\u00a0"))
+        self.assertTrue(in_table_c21_c22(u"\u009f"))
+        self.assertFalse(in_table_c21_c22(u"\u00a0"))
 
-        self.failUnless(in_table_c3(u"\ue000"))
-        self.failIf(in_table_c3(u"\uf900"))
+        self.assertTrue(in_table_c3(u"\ue000"))
+        self.assertFalse(in_table_c3(u"\uf900"))
 
-        self.failUnless(in_table_c4(u"\uffff"))
-        self.failIf(in_table_c4(u"\u0000"))
+        self.assertTrue(in_table_c4(u"\uffff"))
+        self.assertFalse(in_table_c4(u"\u0000"))
 
-        self.failUnless(in_table_c5(u"\ud800"))
-        self.failIf(in_table_c5(u"\ud7ff"))
+        self.assertTrue(in_table_c5(u"\ud800"))
+        self.assertFalse(in_table_c5(u"\ud7ff"))
 
-        self.failUnless(in_table_c6(u"\ufff9"))
-        self.failIf(in_table_c6(u"\ufffe"))
+        self.assertTrue(in_table_c6(u"\ufff9"))
+        self.assertFalse(in_table_c6(u"\ufffe"))
 
-        self.failUnless(in_table_c7(u"\u2ff0"))
-        self.failIf(in_table_c7(u"\u2ffc"))
+        self.assertTrue(in_table_c7(u"\u2ff0"))
+        self.assertFalse(in_table_c7(u"\u2ffc"))
 
-        self.failUnless(in_table_c8(u"\u0340"))
-        self.failIf(in_table_c8(u"\u0342"))
+        self.assertTrue(in_table_c8(u"\u0340"))
+        self.assertFalse(in_table_c8(u"\u0342"))
 
         # C.9 is not in the bmp
-        # self.failUnless(in_table_c9(u"\U000E0001"))
-        # self.failIf(in_table_c8(u"\U000E0002"))
+        # self.assertTrue(in_table_c9(u"\U000E0001"))
+        # self.assertFalse(in_table_c8(u"\U000E0002"))
 
-        self.failUnless(in_table_d1(u"\u05be"))
-        self.failIf(in_table_d1(u"\u05bf"))
+        self.assertTrue(in_table_d1(u"\u05be"))
+        self.assertFalse(in_table_d1(u"\u05bf"))
 
-        self.failUnless(in_table_d2(u"\u0041"))
-        self.failIf(in_table_d2(u"\u0040"))
+        self.assertTrue(in_table_d2(u"\u0041"))
+        self.assertFalse(in_table_d2(u"\u0040"))
 
         # This would generate a hash of all predicates. However, running
         # it is quite expensive, and only serves to detect changes in the