Don't allow circular_buffer to shrink below its original size when unit_sz is not a power of two

1 files changed, 18 insertions, 2 deletions

diff --git a/src/test/run-pass/chan-poweroftwo.rs b/src/test/run-pass/chan-poweroftwo.rs
index da9a62cc..be7c18ad 100644
--- a/src/test/run-pass/chan-poweroftwo.rs
+++ b/src/test/run-pass/chan-poweroftwo.rs
@@ -39,7 +39,7 @@ impure fn test_grow() {
 }
 
 // Don't allow the buffer to shrink below it's original size
-impure fn test_shrink() {
+impure fn test_shrink1() {
     let port[i8] myport = port();
     auto mychan = chan(myport);
 
@@ -47,10 +47,26 @@ impure fn test_shrink() {
     auto x <- myport;
 }
 
+impure fn test_shrink2() {
+    let port[record] myport = port();
+    auto mychan = chan(myport);
+
+    let record val = rec(val1=0i32, val2=0i32, val3=0i32);
+
+    for each (uint i in _uint.range(0u, 100u)) {
+        mychan <| val;
+    }
+
+    for each (uint i in _uint.range(0u, 100u)) {
+        auto x <- myport;
+    }
+}
+
 impure fn main() {
     test_init();
     test_grow();
-    test_shrink();
+    test_shrink1();
+    test_shrink2();
 }
 
 // Local Variables: