<?php $I = new FunctionalTester($scenario); $rabman = new \Rabman\ResourceFactory(\Codeception\Util\Fixtures::get('rabman-opt')); $items = $rabman->nodes()->columns(['exchange_types.name']); $count = count($items); $I->assertTrue($count > 0); $expected = [['name' => 'direct'], ['name' => 'headers'], ['name' => 'topic'], ['name' => 'fanout']]; $I->assertEquals($expected, $items[0]['exchange_types']);