Issue #18409: Idle: add unittest for AutoComplete. Patch by Phil Webster.
diff --git a/Misc/NEWS b/Misc/NEWS
index 4cf70a6..2589663 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -42,6 +42,11 @@
 
 - Issue #21481:  Argparse equality and inequality tests now return 
   NotImplemented when comparing to an unknown type.
+  
+IDLE
+----
+
+- Issue #18409: Add unittest for AutoComplete. Patch by Phil Webster.
 
 Tests
 -----