From f9823e5c12945fbff0c678d9517c403a23478bd9 Mon Sep 17 00:00:00 2001
From: John Barboza <jbarboza@ca.ibm.com>
Date: Wed, 2 Aug 2017 22:58:45 -0400
Subject: [PATCH] test,zos: use gid=-1 to test spawn_setgid_fails

This is because on some platforms like z/OS, setgid(0) is
allowed for non-superusers. So instead, use setgid(-1) to
get UV_EINVAL to test that spawn failure returns the right
return code.

PR-URL: https://github.com/libuv/libuv/pull/1456
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
---
 test/test-spawn.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/test/test-spawn.c b/test/test-spawn.c
index d714e045b..91d831e19 100644
--- a/test/test-spawn.c
+++ b/test/test-spawn.c
@@ -1351,10 +1351,14 @@ TEST_IMPL(spawn_setgid_fails) {
   init_process_options("spawn_helper1", fail_cb);
 
   options.flags |= UV_PROCESS_SETGID;
+#if defined(__MVS__)
+  options.gid = -1;
+#else
   options.gid = 0;
+#endif
 
   r = uv_spawn(uv_default_loop(), &process, &options);
-#if defined(__CYGWIN__)
+#if defined(__CYGWIN__) || defined(__MVS__)
   ASSERT(r == UV_EINVAL);
 #else
   ASSERT(r == UV_EPERM);