diff --git a/tests/readline1.c b/tests/readline1.c
new file mode 100644
index 0000000..0d2c1a5
--- /dev/null
+++ b/tests/readline1.c
@@ -0,0 +1,25 @@
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+int rl_insert ( int, int );
+
+void main ( void )
+{
+   rl_insert(1, 'z');
+}
+
+int zzzstrlen ( char* str )
+{
+   if (str[1] == 0) return 2; else return 10;
+}
+
+int rl_insert ( int count, int c )
+{
+   char str[2];
+   str[1] = 0;
+   str[0] = c;
+   printf("HERE strlen  is %d\n", zzzstrlen(str));
+   return 0;
+}