SectionComponentTest.php

<?php

namespace Drupal\Tests\layout_builder\Unit;

use Drupal\Core\Block\BlockManagerInterface;
use Drupal\Core\Block\BlockPluginInterface;
use Drupal\Core\DependencyInjection\ContainerBuilder;
use Drupal\Core\Layout\LayoutInterface;
use Drupal\Core\Layout\LayoutPluginManagerInterface;
use Drupal\layout_builder\Event\SectionComponentBuildRenderArrayEvent;
use Drupal\layout_builder\LayoutBuilderEvents;
use Drupal\layout_builder\SectionComponent;
use Drupal\Tests\UnitTestCase;
use Prophecy\Argument;
use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;

/**
 * @coversDefaultClass \Drupal\layout_builder\SectionComponent
 * @group layout_builder
 */
class SectionComponentTest extends UnitTestCase {
    
    /**
     * @covers ::toRenderArray
     */
    public function testToRenderArray() {
        $existing_block = $this->prophesize(BlockPluginInterface::class);
        $existing_block->getPluginId()
            ->willReturn('block_plugin_id');
        $block_manager = $this->prophesize(BlockManagerInterface::class);
        $block_manager->createInstance('some_block_id', [
            'id' => 'some_block_id',
        ])
            ->willReturn($existing_block->reveal());
        // Imitate an event subscriber by setting a resulting build on the event.
        $event_dispatcher = $this->prophesize(EventDispatcherInterface::class);
        $event_dispatcher->dispatch(Argument::type(SectionComponentBuildRenderArrayEvent::class), LayoutBuilderEvents::SECTION_COMPONENT_BUILD_RENDER_ARRAY)
            ->shouldBeCalled()
            ->will(function ($args) {
            
            /** @var \Drupal\layout_builder\Event\SectionComponentBuildRenderArrayEvent $event */
            $event = $args[0];
            $event->setBuild([
                '#markup' => $event->getPlugin()
                    ->getPluginId(),
            ]);
            return $event;
        });
        $layout_plugin = $this->prophesize(LayoutInterface::class);
        $layout_plugin->build(Argument::type('array'))
            ->willReturnArgument(0);
        $layout_manager = $this->prophesize(LayoutPluginManagerInterface::class);
        $layout_manager->createInstance('layout_onecol', [])
            ->willReturn($layout_plugin->reveal());
        $container = new ContainerBuilder();
        $container->set('plugin.manager.block', $block_manager->reveal());
        $container->set('event_dispatcher', $event_dispatcher->reveal());
        $container->set('plugin.manager.core.layout', $layout_manager->reveal());
        \Drupal::setContainer($container);
        $expected = [
            '#cache' => [
                'contexts' => [],
                'tags' => [],
                'max-age' => -1,
            ],
            '#markup' => 'block_plugin_id',
        ];
        $component = new SectionComponent('some-uuid', 'some-region', [
            'id' => 'some_block_id',
        ]);
        $result = $component->toRenderArray();
        $this->assertEquals($expected, $result);
    }

}