diff -r 58bd6a58365d Lib/packaging/tests/test_util.py
--- a/Lib/packaging/tests/test_util.py	Wed Feb 08 04:09:37 2012 +0100
+++ b/Lib/packaging/tests/test_util.py	Thu Feb 09 01:26:05 2012 +0200
@@ -173,6 +173,10 @@
         sys.stdout = self.old_stdout
         sys.stderr = self.old_stderr
 
+    def test_set_platform(self):
+        util.set_platform("fake")
+        self.assertEqual("fake", util.get_platform())
+
     def test_convert_path(self):
         # linux/mac
         os.sep = '/'