1 files changed, 14 insertions, 0 deletions
diff --git a/library/std/src/process/tests.rs b/library/std/src/process/tests.rs
index 88cc95caf40..fb0b495961c 100644
--- a/library/std/src/process/tests.rs
+++ b/library/std/src/process/tests.rs
@@ -96,9 +96,23 @@ fn stdout_works() {
 #[test]
 #[cfg_attr(any(windows, target_os = "vxworks"), ignore)]
 fn set_current_dir_works() {
+    // On many Unix platforms this will use the posix_spawn path.
     let mut cmd = shell_cmd();
     cmd.arg("-c").arg("pwd").current_dir("/").stdout(Stdio::piped());
     assert_eq!(run_output(cmd), "/\n");
+
+    // Also test the fork/exec path by setting a pre_exec function.
+    #[cfg(unix)]
+    {
+        use crate::os::unix::process::CommandExt;
+
+        let mut cmd = shell_cmd();
+        cmd.arg("-c").arg("pwd").current_dir("/").stdout(Stdio::piped());
+        unsafe {
+            cmd.pre_exec(|| Ok(()));
+        }
+        assert_eq!(run_output(cmd), "/\n");
+    }
 }
 
 #[test]