1 files changed, 48 insertions, 0 deletions
diff --git a/src/test/ui/eprint-on-tls-drop.rs b/src/test/ui/eprint-on-tls-drop.rs
new file mode 100644
index 00000000000..9c4800c1a3f
--- /dev/null
+++ b/src/test/ui/eprint-on-tls-drop.rs
@@ -0,0 +1,48 @@
+// run-pass
+// ignore-emscripten no processes
+
+use std::cell::RefCell;
+use std::env;
+use std::process::Command;
+
+fn main() {
+    let name = "YOU_ARE_THE_TEST";
+    if env::var(name).is_ok() {
+        std::thread::spawn(|| {
+            TLS.with(|f| f.borrow().ensure());
+        })
+        .join()
+        .unwrap();
+    } else {
+        let me = env::current_exe().unwrap();
+        let output = Command::new(&me).env(name, "1").output().unwrap();
+        println!("{:?}", output);
+        assert!(output.status.success());
+        let stderr = String::from_utf8(output.stderr).unwrap();
+        assert!(stderr.contains("hello new\n"));
+        assert!(stderr.contains("hello drop\n"));
+    }
+}
+
+struct Stuff {
+    _x: usize,
+}
+
+impl Stuff {
+    fn new() -> Self {
+        eprintln!("hello new");
+        Self { _x: 0 }
+    }
+
+    fn ensure(&self) {}
+}
+
+impl Drop for Stuff {
+    fn drop(&mut self) {
+        eprintln!("hello drop");
+    }
+}
+
+thread_local! {
+    static TLS: RefCell<Stuff> = RefCell::new(Stuff::new());
+}