1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/allocator-alloc-one.rs b/src/test/ui/allocator-alloc-one.rs
new file mode 100644
index 00000000000..312d5f13b1a
--- /dev/null
+++ b/src/test/ui/allocator-alloc-one.rs
@@ -0,0 +1,18 @@
+// run-pass
+
+#![allow(stable_features)]
+
+#![feature(allocator_api, nonnull)]
+
+use std::alloc::{Alloc, Global, Layout, handle_alloc_error};
+
+fn main() {
+    unsafe {
+        let ptr = Global.alloc_one::<i32>().unwrap_or_else(|_| {
+            handle_alloc_error(Layout::new::<i32>())
+        });
+        *ptr.as_ptr() = 4;
+        assert_eq!(*ptr.as_ptr(), 4);
+        Global.dealloc_one(ptr);
+    }
+}