From 3a28451e796a5a84cef005c82e53c654f3fcd490 Mon Sep 17 00:00:00 2001
From: Tom Kaitchuck <Tom.Kaitchuck@gmail.com>
Date: Thu, 29 Feb 2024 19:41:40 -0800
Subject: [PATCH] Add test from #213

Signed-off-by: Tom Kaitchuck <Tom.Kaitchuck@gmail.com>
---
 src/lib.rs | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index c757a70..53527a2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -337,4 +337,31 @@ mod test {
     fn test_ahasher_construction() {
         let _ = AHasher::new_with_keys(1234, 5678);
     }
+
+    #[test]
+    fn test_specialize_reference_hash() {
+        let hasher_build = RandomState::default();
+        let h1 = hasher_build.hash_one(1u64);
+        let h2 = hasher_build.hash_one(&1u64);
+        let h3 = hasher_build.hash_one(&&1u64);
+
+        assert_eq!(h1, h2);
+        assert_eq!(h1, h3);
+
+        let h1 = u64::get_hash(&1_u64, &hasher_build);
+        let h2 = u64::get_hash(&&1_u64, &hasher_build);
+        let h3 = u64::get_hash(&&&1_u64, &hasher_build);
+
+        assert_eq!(h1, h2);
+        assert_eq!(h1, h3);
+
+        let hasher_build = RandomState::<u128>::default();
+        
+        let h1 = hasher_build.hash_one(1u128);
+        let h2 = hasher_build.hash_one(&1u128);
+        let h3 = hasher_build.hash_one(&&1u128);
+
+        assert_eq!(h1, h2);
+        assert_eq!(h1, h3);
+    }
 }