class BlockContentDeletionTest

class BlockContentDeletionTest extends KernelTestBase {
    use BlockCreationTrait;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'block',
        'block_content',
        'system',
        'user',
    ];
    
    /**
     * {@inheritdoc}
     */
    public function setUp() : void {
        parent::setUp();
        $this->installEntitySchema('user');
        $this->installEntitySchema('block_content');
    }
    
    /**
     * Tests deleting a block_content updates the discovered block plugin.
     */
    public function testDeletingBlockContentShouldClearPluginCache() {
        // Create a block content type.
        $block_content_type = BlockContentType::create([
            'id' => 'spiffy',
            'label' => 'Mucho spiffy',
            'description' => "Provides a block type that increases your site's spiffiness by upto 11%",
        ]);
        $block_content_type->save();
        // And a block content entity.
        $block_content = BlockContent::create([
            'info' => 'Spiffy prototype',
            'type' => 'spiffy',
        ]);
        $block_content->save();
        // Make sure the block content provides a derivative block plugin in the
        // block repository.
        
        /** @var \Drupal\Core\Block\BlockManagerInterface $block_manager */
        $block_manager = $this->container
            ->get('plugin.manager.block');
        $plugin_id = 'block_content' . PluginBase::DERIVATIVE_SEPARATOR . $block_content->uuid();
        $this->assertTrue($block_manager->hasDefinition($plugin_id));
        // Now delete the block content entity.
        $block_content->delete();
        // The plugin should no longer exist.
        $this->assertFalse($block_manager->hasDefinition($plugin_id));
        // Create another block content entity.
        $block_content = BlockContent::create([
            'info' => 'Spiffy prototype',
            'type' => 'spiffy',
        ]);
        $block_content->save();
        $plugin_id = 'block_content' . PluginBase::DERIVATIVE_SEPARATOR . $block_content->uuid();
        $block = $this->placeBlock($plugin_id, [
            'region' => 'content',
        ]);
        // Delete it via storage.
        $storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('block_content');
        $storage->delete([
            $block_content,
        ]);
        // The plugin should no longer exist.
        $this->assertFalse($block_manager->hasDefinition($plugin_id));
        $this->assertNull($this->container
            ->get('entity_type.manager')
            ->getStorage('block')
            ->loadUnchanged($block->id()));
    }

}