fix of "Internal classes cannot be mocked without invoking their constructor in PHP 5.4.29" unit tests failure on Travis CI

- fix issues appeared due to incomplete fix:
-- Argument 1 passed to Magento\Backend\Model\Menu::__construct() must be an instance of Magento\Framework\Logger, none given
-- DOMException: DOMElement::__construct() expects at least 1 parameter, 0 given