def all_diff_commands_mjsonwp
      result = compare_commands(@spec_commands, @implemented_mjsonwp_commands)

      white_list.each { |v| result.delete v }
      w3c_spec.each { |v| result.delete v }

      result
    end
def all_diff_commands_mjsonwp
      result = compare_commands(@spec_commands, @implemented_mjsonwp_commands)

      white_list.each { |v| result.delete v }
      w3c_spec.each { |v| result.delete v }

      result
    end
All commands which haven't been implemented in ruby core library yet.
 @return [Hash]