2 files changed, 49 insertions, 2 deletions
diff --git a/src/test/run-pass/task-comm-4.rs b/src/test/run-pass/task-comm-4.rs
index 42ba6992..b185d425 100644
--- a/src/test/run-pass/task-comm-4.rs
+++ b/src/test/run-pass/task-comm-4.rs
@@ -3,8 +3,30 @@ io fn main() -> () {
 }
 
 io fn test00() {
+    let int r = 0;    
+    let int sum = 0;
     let port[int] p = port();
     let chan[int] c = chan(p);
-    c <| 42;
-    let int r <- p;
+
+    c <| 1;
+    c <| 2;
+    c <| 3;
+    c <| 4;
+
+    r <- p; sum += r; log (r);
+    r <- p; sum += r; log (r);
+    r <- p; sum += r; log (r);
+    r <- p; sum += r; log (r);
+    
+    c <| 5;
+    c <| 6;
+    c <| 7;
+    c <| 8;
+
+    r <- p; sum += r; log (r);
+    r <- p; sum += r; log (r);
+    r <- p; sum += r; log (r);
+    r <- p; sum += r; log (r);
+    
+    check (sum == 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8);
 }
 \ No newline at end of file
diff --git a/src/test/run-pass/task-comm-5.rs b/src/test/run-pass/task-comm-5.rs
new file mode 100644
index 00000000..950f4149
--- /dev/null
+++ b/src/test/run-pass/task-comm-5.rs
@@ -0,0 +1,25 @@
+io fn main() -> () {
+   test00();
+}
+
+io fn test00() {
+    let int r = 0;    
+    let int sum = 0;
+    let port[int] p = port();
+    let chan[int] c = chan(p);
+    let int number_of_messages = 1000;
+
+    let int i = 0;
+    while (i < number_of_messages) {
+        c <| i;
+        i += 1;
+    }
+
+    i = 0;
+    while (i < number_of_messages) {
+        r <- p; sum += r;
+        i += 1;
+    }
+    
+    check (sum == ((number_of_messages * (number_of_messages - 1)) / 2));
+}
+\ No newline at end of file