1 files changed, 23 insertions, 0 deletions
diff --git a/third_party/rust/num-derive/tests/empty_enum.rs b/third_party/rust/num-derive/tests/empty_enum.rs
new file mode 100644
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+++ b/third_party/rust/num-derive/tests/empty_enum.rs
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+// Copyright 2013-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+extern crate num as num_renamed;
+#[macro_use]
+extern crate num_derive;
+
+#[derive(Debug, PartialEq, FromPrimitive, ToPrimitive)]
+enum Color {}
+
+#[test]
+fn test_empty_enum() {
+    let v: [Option<Color>; 1] = [num_renamed::FromPrimitive::from_u64(0)];
+
+    assert_eq!(v, [None]);
+}