diff --git a/ase/test/awk/t12.awk b/ase/test/awk/t12.awk
index 239218a9..32646da0 100644
--- a/ase/test/awk/t12.awk
+++ b/ase/test/awk/t12.awk
@@ -9,4 +9,12 @@ BEGIN
 	print "line 4" >> "4";
 
 	while ((getline x < "abc") > 0) print x;
+	close ("abc");
+
+
+	print "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";
+
+	getline x < "abc";
+	if (x == "a") print "xxxxxxxxxxxxxxxx"; else print x;
+	
 }