1 files changed, 68 insertions, 0 deletions
diff --git a/src/test/ui/run-pass/threads-sendsync/task-comm-7.rs b/src/test/ui/run-pass/threads-sendsync/task-comm-7.rs
new file mode 100644
index 00000000000..7ab267ea66c
--- /dev/null
+++ b/src/test/ui/run-pass/threads-sendsync/task-comm-7.rs
@@ -0,0 +1,68 @@
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-emscripten no threads support
+
+#![allow(dead_assignment)]
+
+use std::sync::mpsc::{channel, Sender};
+use std::thread;
+
+pub fn main() { test00(); }
+
+fn test00_start(c: &Sender<isize>, start: isize,
+                number_of_messages: isize) {
+    let mut i: isize = 0;
+    while i < number_of_messages { c.send(start + i).unwrap(); i += 1; }
+}
+
+fn test00() {
+    let mut r: isize = 0;
+    let mut sum: isize = 0;
+    let (tx, rx) = channel();
+    let number_of_messages: isize = 10;
+
+    let tx2 = tx.clone();
+    let t1 = thread::spawn(move|| {
+        test00_start(&tx2, number_of_messages * 0, number_of_messages);
+    });
+    let tx2 = tx.clone();
+    let t2 = thread::spawn(move|| {
+        test00_start(&tx2, number_of_messages * 1, number_of_messages);
+    });
+    let tx2 = tx.clone();
+    let t3 = thread::spawn(move|| {
+        test00_start(&tx2, number_of_messages * 2, number_of_messages);
+    });
+    let tx2 = tx.clone();
+    let t4 = thread::spawn(move|| {
+        test00_start(&tx2, number_of_messages * 3, number_of_messages);
+    });
+
+    let mut i: isize = 0;
+    while i < number_of_messages {
+        r = rx.recv().unwrap();
+        sum += r;
+        r = rx.recv().unwrap();
+        sum += r;
+        r = rx.recv().unwrap();
+        sum += r;
+        r = rx.recv().unwrap();
+        sum += r;
+        i += 1;
+    }
+
+    assert_eq!(sum, number_of_messages * 4 * (number_of_messages * 4 - 1) / 2);
+
+    t1.join();
+    t2.join();
+    t3.join();
+    t4.join();
+}