provided code

src/tests/userprog/exit.c

@@ -0,0 +1,11 @@
+/* Tests the exit system call. */
+
+#include "tests/lib.h"
+#include "tests/main.h"
+
+void
+test_main (void) 
+{
+  exit (57);
+  fail ("should have called exit(57)");
+}