diff -r f4f81ebc3de9 Lib/test/test_format.py
--- a/Lib/test/test_format.py	Sun Aug 04 15:50:08 2013 -0400
+++ b/Lib/test/test_format.py	Mon Aug 05 15:47:33 2013 +0800
@@ -327,10 +327,6 @@
         self.assertIs(text % (), text)
         self.assertIs(text.format(), text)
 
-
-def test_main():
-    support.run_unittest(FormatTest)
-
     def test_precision(self):
         INT_MAX = 2147483647
 
@@ -342,10 +338,10 @@
         self.assertEqual(str(cm.exception), "precision too big")
 
         c = complex(f)
-        self.assertEqual(format(f, ".0f"), "1")
-        self.assertEqual(format(f, ".3f"), "1.200")
+        self.assertEqual(format(c, ".0f"), "1+0j")
+        self.assertEqual(format(c, ".3f"), "1.200+0.000j")
         with self.assertRaises(ValueError) as cm:
-            format(f, ".%sf" % (INT_MAX + 1))
+            format(c, ".%sf" % (INT_MAX + 1))
         self.assertEqual(str(cm.exception), "precision too big")