def get_instance_for_appending(rails_mode, target_path)
      template = get_erb_template(@custom_template, false, rails_mode, target_path)
      ERB.new(template, nil, '-', '_additional_spec_code')
    end
def get_instance_for_appending(rails_mode, target_path)
      template = get_erb_template(@custom_template, false, rails_mode, target_path)
      ERB.new(template, nil, '-', '_additional_spec_code')
    end
Returns ERB instance for appeding lacking tests