AuthenticationSignonTest::testAuthLogout PHP Method

    public function testAuthLogout()
    {
        $restoreInstance = PMA\libraries\Response::getInstance();
        $mockResponse = $this->getMockBuilder('PMA\\libraries\\Response')->disableOriginalConstructor()->setMethods(array('isAjax', 'headersSent', 'header'))->getMock();
        $mockResponse->expects($this->any())->method('headersSent')->with()->will($this->returnValue(false));
        $mockResponse->expects($this->once())->method('header')->with('Location: https://example.com/SignonURL');
        $attrInstance = new ReflectionProperty('PMA\\libraries\\Response', '_instance');
        $attrInstance->setAccessible(true);
        $attrInstance->setValue($mockResponse);
        $GLOBALS['header'] = array();
        $GLOBALS['cfg']['Server']['SignonURL'] = 'https://example.com/SignonURL';
        $GLOBALS['cfg']['Server']['LogoutURL'] = '';
        $this->object->logOut();
        $attrInstance->setValue($restoreInstance);
    }