auto merge of #15245 : sfackler/rust/coretest, r=alexcrichton

Libcore's test infrastructure is complicated by the fact that many lang
items are defined in the crate. The current approach (realcore/realstd
imports) is hacky and hard to work with (tests inside of core::cmp
haven't been run for months!).

Moving tests to a separate crate does mean that they can only test the
public API of libcore, but I don't feel that that is too much of an
issue. The only tests that I had to get rid of were some checking the
various numeric formatters, but those are also exercised through normal
format! calls in other tests.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/libstd/gc.rs b/src/libstd/gc.rs
index 363c577563e..44988a23070 100644
--- a/src/libstd/gc.rs
+++ b/src/libstd/gc.rs
@@ -104,6 +104,13 @@ mod tests {
     use cell::RefCell;
 
     #[test]
+    fn test_managed_clone() {
+        let a = box(GC) 5i;
+        let b: Gc<int> = a.clone();
+        assert!(a == b);
+    }
+
+    #[test]
     fn test_clone() {
         let x = Gc::new(RefCell::new(5));
         let y = x.clone();