public function test_constructor()
 {
     global $INPUT;
     $data = array('schemas' => array(array('schema1', 'alias1'), array('schema2', 'alias2')), 'cols' => array('%pageid%', 'first', 'second', 'third', 'fourth', 'afirst', 'asecond', 'athird', 'afourth'));
     // init with no parameters
     $expect = $data;
     $params = array();
     $searchConfig = new meta\SearchConfig($data);
     $dynamic = $searchConfig->getDynamicParameters();
     $this->assertEquals($expect, $searchConfig->getConf());
     $this->assertEquals($params, $dynamic->getURLParameters());
     // init with sort
     $INPUT->set(meta\SearchConfigParameters::$PARAM_SORT, '^alias2.athird');
     $expect['sort'] = array(array('schema2.athird', false));
     $params[meta\SearchConfigParameters::$PARAM_SORT] = '^schema2.athird';
     $searchConfig = new meta\SearchConfig($data);
     $dynamic = $searchConfig->getDynamicParameters();
     $this->assertEquals($expect, $searchConfig->getConf());
     $this->assertEquals($params, $dynamic->getURLParameters());
     // init with offset
     $INPUT->set(meta\SearchConfigParameters::$PARAM_OFFSET, 25);
     $expect['offset'] = 25;
     $params[meta\SearchConfigParameters::$PARAM_OFFSET] = 25;
     $searchConfig = new meta\SearchConfig($data);
     $dynamic = $searchConfig->getDynamicParameters();
     $this->assertEquals($expect, $searchConfig->getConf());
     $this->assertEquals($params, $dynamic->getURLParameters());
     // init with filters
     $_REQUEST[meta\SearchConfigParameters::$PARAM_FILTER]['alias1.first*~'] = 'test';
     $_REQUEST[meta\SearchConfigParameters::$PARAM_FILTER]['afirst='] = 'test2';
     $expect['filter'] = array(array('schema1.first', '*~', 'test', 'AND'), array('schema2.afirst', '=', 'test2', 'AND'));
     $params[meta\SearchConfigParameters::$PARAM_FILTER . '[schema1.first*~]'] = 'test';
     $params[meta\SearchConfigParameters::$PARAM_FILTER . '[schema2.afirst=]'] = 'test2';
     $searchConfig = new meta\SearchConfig($data);
     $dynamic = $searchConfig->getDynamicParameters();
     $this->assertEquals($expect, $searchConfig->getConf());
     $this->assertEquals($params, $dynamic->getURLParameters());
 }