/**
             * The first element contains multibyte alphabets and  digits.
             *  But , Zend_Filter_Alnum is expected to return only singlebyte alphabets and  digits.
             * 
             * The second contains multibyte or singebyte space.
             * The third  contains various multibyte or singebyte characters.
             */
            $valuesExpected = array(
                'aＡBｂ3４5６'  => 'aB35',
                'z７ Ｙ8　x９'  => 'z8x',
                '，s1.2r３#:q,' => 's12rq',
            );

            /**
             * If whitespace allowed
             *
             */
            $valuesExpected = array(
                'a B ４5'  => 'a B 5',
                'z3　x'  => 'z3x'
            );