newsupernova/dev/tests/integration/testsuite/Magento/Backend/Block/Widget/Grid/ContainerTest.php

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Backend\Block\Widget\Grid;

/**
 * @magentoAppArea adminhtml
 */
class ContainerTest extends \PHPUnit\Framework\TestCase
{
    public function testPseudoConstruct()
    {
        /** @var $block \Magento\Backend\Block\Widget\Grid\Container */
        $block = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->get(
            \Magento\Framework\View\LayoutInterface::class
        )->createBlock(
            \Magento\Backend\Block\Widget\Grid\Container::class,
            '',
            [
                'data' => [
                    \Magento\Backend\Block\Widget\Container::PARAM_CONTROLLER => 'widget',
                    \Magento\Backend\Block\Widget\Container::PARAM_HEADER_TEXT => 'two',
                    \Magento\Backend\Block\Widget\Grid\Container::PARAM_BLOCK_GROUP => 'Magento_Backend',
                    \Magento\Backend\Block\Widget\Grid\Container::PARAM_BUTTON_NEW => 'four',
                    \Magento\Backend\Block\Widget\Grid\Container::PARAM_BUTTON_BACK => 'five',
                ]
            ]
        );
        $this->assertStringEndsWith('widget', $block->getHeaderCssClass());
        $this->assertContains('two', $block->getHeaderText());
        $this->assertInstanceOf(\Magento\Backend\Block\Widget\Grid::class, $block->getChildBlock('grid'));
        $this->assertEquals('four', $block->getAddButtonLabel());
        $this->assertEquals('five', $block->getBackButtonLabel());
    }
}