--- a/tests/run-tests.py	Fri May 24 13:23:19 2013 -0500
+++ b/tests/run-tests.py	Fri May 24 13:31:44 2013 -0500
@@ -1244,7 +1244,9 @@
         checktools()
 
         if len(args) == 0:
-            args = sorted(os.listdir("."))
+            args = sorted(t for t in os.listdir(".")
+                          if t.startswith("test-")
+                          and (t.endswith(".py") or t.endswith(".t")))
 
     tests = args