fix: review

common/Cargo.toml

@@ -10,3 +10,8 @@ categories.workspace = true
 
 [dependencies]
 ethereum-types = { workspace = true }
+keccak-hash = { workspace = true }
+
+[dev-dependencies]
+bytes = { workspace = true }
+rlp = { workspace = true }

common/src/lib.rs

@@ -1,15 +1,28 @@
 use ethereum_types::H256;
 
-/// Empty code hash value
+/// Hash value of account empty EVM code.
 /// 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
 pub const EMPTY_CODE_HASH: H256 = H256([
     197, 210, 70, 1, 134, 247, 35, 60, 146, 126, 125, 178, 220, 199, 3, 192, 229, 0, 182, 83, 202,
     130, 39, 59, 123, 250, 216, 4, 93, 133, 164, 112,
 ]);
 
-/// The hash of an empty trie.
+/// The hash of an empty Merkle Patricia trie.
 /// 0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421
 pub const EMPTY_TRIE_HASH: H256 = H256([
     86, 232, 31, 23, 27, 204, 85, 166, 255, 131, 69, 230, 146, 192, 248, 110, 91, 72, 224, 27, 153,
     108, 173, 192, 1, 98, 47, 181, 227, 99, 180, 33,
 ]);
+
+#[test]
+fn test_code_hash() {
+    assert_eq!(EMPTY_CODE_HASH, keccak_hash::keccak([]));
+}
+
+#[test]
+fn test_empty_trie_hash() {
+    assert_eq!(
+        EMPTY_TRIE_HASH,
+        keccak_hash::keccak(bytes::Bytes::from_static(&rlp::NULL_RLP))
+    );
+}