1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/command/command-setgroups.rs b/tests/ui/command/command-setgroups.rs
new file mode 100644
index 00000000000..aff67f91bba
--- /dev/null
+++ b/tests/ui/command/command-setgroups.rs
@@ -0,0 +1,26 @@
+// run-pass
+// ignore-windows - this is a unix-specific test
+// ignore-emscripten
+// ignore-sgx
+// ignore-musl - returns dummy result for _SC_NGROUPS_MAX
+
+#![feature(rustc_private)]
+#![feature(setgroups)]
+
+extern crate libc;
+use std::process::Command;
+use std::os::unix::process::CommandExt;
+
+fn main() {
+    #[cfg(unix)]
+    run()
+}
+
+#[cfg(unix)]
+fn run() {
+    let max_ngroups = unsafe { libc::sysconf(libc::_SC_NGROUPS_MAX) };
+    let max_ngroups = max_ngroups as u32 + 1;
+    let vec: Vec<u32> = (0..max_ngroups).collect();
+    let p = Command::new("/bin/id").groups(&vec[..]).spawn();
+    assert!(p.is_err());
+}