diff -r c80576303892 Lib/test/test_tools.py
--- a/Lib/test/test_tools.py	Sun May 06 17:27:39 2012 +0100
+++ b/Lib/test/test_tools.py	Sun May 06 18:09:28 2012 +0100
@@ -99,6 +99,11 @@
         self.pdeps.inverse({'a': []})
 
 
+# Run the tests in Tools/parser/test_unparse.py
+with support.DirsOnSysPath(os.path.join(basepath, 'parser')):
+    from test_unparse import UnparseTestCase, DirectoryTestCase
+
+
 def test_main():
     support.run_unittest(*[obj for obj in globals().values()
                                if isinstance(obj, type)])