function BlockViewBuilderTest::testBasicRendering

Tests the rendering of blocks.

File

core/modules/block/tests/src/Kernel/BlockViewBuilderTest.php, line 77

Class

BlockViewBuilderTest

Tests the block view builder.

Namespace

Code

public function testBasicRendering() : void {
    \Drupal::state()->set('block_test.content', '');
    $entity = $this->controller
        ->create([
        'id' => 'test_block1',
        'theme' => 'stark',
        'plugin' => 'test_html',
    ]);
    $entity->save();
    // Test the rendering of a block.
    $entity = Block::load('test_block1');
    $builder = \Drupal::entityTypeManager()->getViewBuilder('block');
    $output = $builder->view($entity, 'block');
    $expected = [];
    $expected[] = '<div id="block-test-block1">';
    $expected[] = '  ';
    $expected[] = '    ';
    $expected[] = '      ';
    $expected[] = '  </div>';
    $expected[] = '';
    $expected_output = implode("\n", $expected);
    $this->assertSame($expected_output, (string) $this->renderer
        ->renderRoot($output));
    // Reset the HTML IDs so that the next render is not affected.
    Html::resetSeenIds();
    // Test the rendering of a block with a given title.
    $entity = $this->controller
        ->create([
        'id' => 'test_block2',
        'theme' => 'stark',
        'plugin' => 'test_html',
        'settings' => [
            'label' => 'Powered by Bananas',
        ],
    ]);
    $entity->save();
    $output = $builder->view($entity, 'block');
    $expected = [];
    $expected[] = '<div id="block-test-block2">';
    $expected[] = '  ';
    $expected[] = '      <h2>Powered by Bananas</h2>';
    $expected[] = '    ';
    $expected[] = '      ';
    $expected[] = '  </div>';
    $expected[] = '';
    $expected_output = implode("\n", $expected);
    $this->assertSame($expected_output, (string) $this->renderer
        ->renderRoot($output));
}