1 files changed, 30 insertions, 0 deletions
diff --git a/src/liballoc/alloc/tests.rs b/src/liballoc/alloc/tests.rs
new file mode 100644
index 00000000000..c69f4e49ee1
--- /dev/null
+++ b/src/liballoc/alloc/tests.rs
@@ -0,0 +1,30 @@
+use super::*;
+
+extern crate test;
+use test::Bencher;
+use crate::boxed::Box;
+
+#[test]
+fn allocate_zeroed() {
+    unsafe {
+        let layout = Layout::from_size_align(1024, 1).unwrap();
+        let ptr = Global.alloc_zeroed(layout.clone())
+            .unwrap_or_else(|_| handle_alloc_error(layout));
+
+        let mut i = ptr.cast::<u8>().as_ptr();
+        let end = i.add(layout.size());
+        while i < end {
+            assert_eq!(*i, 0);
+            i = i.offset(1);
+        }
+        Global.dealloc(ptr, layout);
+    }
+}
+
+#[bench]
+#[cfg(not(miri))] // Miri does not support benchmarks
+fn alloc_owned_small(b: &mut Bencher) {
+    b.iter(|| {
+        let _: Box<_> = box 10;
+    })
+}