class DisplayTest

class DisplayTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'block',
        'block_content',
        'ctools_entity_mask',
        'entity_mask_test',
        'field',
        'field_ui',
        'file',
        'image',
        'link',
        'system',
        'text',
        'user',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $account = $this->drupalCreateUser([
            'administer blocks',
        ]);
        $this->drupalLogin($account);
    }
    
    /**
     * Tests that the form display for a masked entity replicates its source.
     */
    public function testFormDisplay() {
        $assert = $this->assertSession();
        $this->drupalGet('/fake-block/add/basic');
        $assert->statusCodeEquals(200);
        $assert->fieldExists('Body');
        $assert->fieldExists('Link');
        $assert->fieldExists('Image');
    }
    
    /**
     * Tests that the view display for a masked entity replicates its source.
     */
    public function testViewDisplay() {
        // Generate a random image for the image field, since that can potentially
        // be tricky.
        $image_uri = uniqid('public://') . '.png';
        $image_uri = $this->getRandomGenerator()
            ->image($image_uri, '100x100', '200x200');
        $image = File::create([
            'uri' => $image_uri,
        ]);
        $image->save();
        $body = 'Qui animated corpse, cricket bat max brucks terribilem incessu zomby.';
        $link = 'https://www.drupal.org/project/ctools';
        $block = BlockContent::create([
            'type' => 'basic',
            'body' => $body,
            'field_link' => $link,
            'field_image' => $image,
        ]);
        $block->save();
        // Ensure that the entity is intact after serialization and deserialization,
        // since that may prove to be a common storage mechanism for mask entities.
        $block = serialize($block);
        $block = unserialize($block);
        $this->assertSame($body, $block->body->value);
        $this->assertSame($link, $block->field_link->uri);
        $this->assertSame($image_uri, $block->field_image->entity
            ->getFileUri());
        $build = $this->container
            ->get('entity_type.manager')
            ->getViewBuilder('fake_block_content')
            ->view($block);
        // If the fields are not in the renderable array, something has gone awry.
        $this->assertArrayHasKey('body', $build);
        $this->assertArrayHasKey('field_link', $build);
        $this->assertArrayHasKey('field_image', $build);
        // Render the block and check the output too, just to be sure.
        $rendered = $this->container
            ->get('renderer')
            ->renderRoot($build);
        $rendered = (string) $rendered;
        // @todo Use assertStringContainsString() when we rely exclusively on
        // PHPUnit 8.
        $this->assertNotFalse(strpos($rendered, $block->body->value));
        $this->assertNotFalse(strpos($rendered, $block->field_link->uri));
        $image_url = $block->field_image->entity
            ->getFileUri();
        $image_url = $this->container
            ->get('file_url_generator')
            ->generateAbsoluteString($image_url);
        $image_url = $this->container
            ->get('file_url_generator')
            ->transformRelative($image_url);
        // @todo Use assertStringContainsString() when we rely exclusively on
        // PHPUnit 8.
        $this->assertNotFalse(strpos($rendered, $image_url));
    }

}