feat: enable ssz static merklelization (#762)

Author: Godspower-Eze

lib/ssz_ex.ex

@@ -824,7 +824,7 @@ defmodule LambdaEthereumConsensus.SszEx do
 
   defp basic_type?({:int, _}), do: true
   defp basic_type?(:bool), do: true
-  defp basic_type?({:bytes, _}), do: true
+  defp basic_type?({:bytes, _}), do: false
   defp basic_type?({:list, _, _}), do: false
   defp basic_type?({:vector, _, _}), do: false
   defp basic_type?({:bitlist, _}), do: false

test/spec/runners/ssz_static.ex

@@ -84,15 +84,14 @@ defmodule SszStaticTestRunner do
     assert_ssz(schema, decompressed, expected, expected_root)
   end
 
-  defp assert_ssz(schema, real_serialized, real_deserialized, _expected_root) do
+  defp assert_ssz(schema, real_serialized, real_deserialized, expected_root) do
     {:ok, deserialized} = SszEx.decode(real_serialized, schema)
     assert Diff.diff(deserialized, real_deserialized) == :unchanged
     {:ok, serialized} = SszEx.encode(real_deserialized, schema)
     assert serialized == real_serialized
 
-    ## TODO Enable when merklelization is enable
-    # root = SszEx.hash_tree_root!(real_deserialized)
-    # assert root == expected_root
+    root = SszEx.hash_tree_root!(real_deserialized, schema)
+    assert root == expected_root
   end
 
   defp parse_type(%SpecTestCase{handler: handler}) do