PHP Unittest mock

<?php
require_once 'custom/modules/Documents/views/view.edit.php';
require_once 'modules/Documents/Document.php';
/**
 * Test Class
 */
class CustomDocumentsViewEditTest extends Sugar_PHPUnit_Framework_TestCase
{
    public function provider()
    {
        return array(
            array(array('share_document_type' => 1)),
            array(array('return_module' => 'Accounts')),
            array(array('share_document_type' => 0, 'share_document_with' => array(1, 2, 3, 4)))
        );
    }
    /**
     * @covers CustomDocumentsViewEdit::display
     * @dataProvider provider
     */
    public function testTags($request)
    {
        $_REQUEST = array_merge($_REQUEST, $request);
        $ut = $this->getMockBuilder('CustomDocumentsViewEdit')
                   ->disableOriginalConstructor()
                   ->setMethods(array('validateTags', 'getRelatedClient', 'callParent'))
                   ->getMock();
        $ut->expects($this->any())
            ->method('getRelatedClient')
            ->will($this->returnValue(false));
        $ut->expects($this->any())
           ->method('validateTags')
           ->will($this->returnValue(true));
        $edit = $this->getMock('EditView');
        $doc = $this->getMock('Document');
        $ut->ev = $ut->bean = $edit;
        $ut->ev->focus = $doc;
        $ut->display();
    }
}