public function testCfg()
 {
     // System / Configuration
     $this->assertTrue(is_array(Praxigento_Quickorder_Config::cfgCustomerGroupsAllowed()));
     $this->assertTrue(is_array(Praxigento_Quickorder_Config::cfgSearchAttributes()));
     $this->assertTrue(is_bool(Praxigento_Quickorder_Config::cfgOutOfStockEnabled()));
     $this->assertTrue(is_bool(Praxigento_Quickorder_Config::cfgInvisibleIncluded()));
     $this->assertTrue(is_bool(Praxigento_Quickorder_Config::cfgComplexProdsIncluded()));
     $this->assertTrue(is_string(Praxigento_Quickorder_Config::cfgSortAttr()));
     $this->assertTrue(is_string(Praxigento_Quickorder_Config::cfgSortOrder()));
 }