Add TestSkipped as another interesting item defined by test_support.
diff --git a/Lib/test/README b/Lib/test/README
index 94b1964..ae39d27 100644
--- a/Lib/test/README
+++ b/Lib/test/README
@@ -145,6 +145,10 @@
* TestFailed - raise this exception when your regression test detects a
failure.
+ * TestSkipped - raise this if the test could not be run because the
+ platform doesn't offer all the required facilities (like large
+ file support), even if all the required modules are available.
+
* findfile(file) - you can call this function to locate a file somewhere
along sys.path or in the Lib/test tree - see test_linuxaudiodev.py for
an example of its use.