From b13b495b918026fc5f3bf059bbde19c832ffe3c0 Mon Sep 17 00:00:00 2001
From: Zachary S <zasample18+github@gmail.com>
Date: Wed, 16 Mar 2022 14:01:48 -0500
Subject: [PATCH] Add test for StructuralEq for std::cmp::Ordering.

Added test in library/core/tests/cmp.rs that ensures that `const`s of type `Ordering`s can be used in patterns.
---
 library/core/tests/cmp.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/library/core/tests/cmp.rs b/library/core/tests/cmp.rs
index 2b234de6795..8d0e59d5a49 100644
--- a/library/core/tests/cmp.rs
+++ b/library/core/tests/cmp.rs
@@ -133,6 +133,19 @@ fn ordering_const() {
     assert_eq!(THEN, Greater);
 }
 
+#[test]
+fn ordering_structural_eq() {
+    // test that consts of type `Ordering` are usable in patterns
+
+    const ORDERING: Ordering = Greater;
+
+    const REVERSE: Ordering = ORDERING.reverse();
+    match Ordering::Less {
+        REVERSE => {}
+        _ => unreachable!(),
+    };
+}
+
 #[test]
 fn cmp_default() {
     // Test default methods in PartialOrd and PartialEq