change to process correctly

Author: iagocavalcante

lib/myxql/protocol/types.ex

@@ -70,8 +70,13 @@ defmodule MyXQL.Protocol.Types do
 
   def take_string_nul(""), do: {nil, ""}
 
-  def take_string_nul(binary) do
-    [string, rest] = :binary.split(binary, <<0>>)
-    {string, rest}
+  def take_string_nul(binary) when is_binary(binary) do
+    case :binary.split(binary, <<0>>) do
+      [string] ->
+        {string, ""}
+
+      [string, rest] ->
+        {string, rest}
+    end
   end
 end