From a4e61541aa156ef8388b96552a98d9505745b997 Mon Sep 17 00:00:00 2001
From: Paul Hauner <paul@paulhauner.com>
Date: Thu, 20 Sep 2018 13:56:44 +1000
Subject: [PATCH] Add SszBlock test to check the canonical hash

---
 lighthouse/state/block/ssz_block.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lighthouse/state/block/ssz_block.rs b/lighthouse/state/block/ssz_block.rs
index 79175b3c22..4d51c3a913 100644
--- a/lighthouse/state/block/ssz_block.rs
+++ b/lighthouse/state/block/ssz_block.rs
@@ -222,6 +222,15 @@ mod tests {
             58, 145, 52, 47, 62, 158, 131, 46, 147
         ];
         assert_eq!(hash, expected_hash);
+
+        /*
+         * Test if you give the SszBlock too many ssz bytes
+         */
+        let mut too_long = serialized.clone();
+        too_long.push(42);
+        let ssz_block = SszBlock::from_slice(&too_long).unwrap();
+        let hash = ssz_block.block_hash();
+        assert_eq!(hash, expected_hash);
     }
 
     #[test]