Issue #3266370 by beagaliana: Add Kernel test for WhatsApp block

  label: 'WhatsApp block'

whatsapp.settings:

  type: mapping

  type: config_object

  label: 'WhatsApp settings'

  mapping:

    widget_key:

langcode: en

status: true

dependencies: {  }

id: whatsapp_test_key

label: 'John''s WhatsApp Key'

description: 'John Doe''s Key for WhatsApp widget'

key_type: authentication

key_type_settings: {  }

key_provider: config

key_provider_settings:

  key_value: muahahaha

key_input: text_field

key_input_settings: {  }

widget_key: whatsapp_test_key

name: WhatsApp Block Test

type: module

description: Module with key config for testing purposes

package: Testing

hidden: true

<?php

namespace Drupal\Tests\whatsapp\Kernel;

use Drupal\KernelTests\KernelTestBase;

use Drupal\Tests\block\Traits\BlockCreationTrait;

/**

 * Tests the WhatsApp block.

 *

 * @group whatsapp

 */

class WhatsappBlockTest extends KernelTestBase {

  use BlockCreationTrait;

  /**

   * Modules to install.

   *

   * @var array

   */

  protected static $modules = ['block', 'whatsapp', 'whatsapp_test', 'key', 'system', 'user'];

  /**

   * The block being tested.

   *

   * @var \Drupal\whatsapp\Plugin\Block

   */

  protected $block;

  /**

   * The block storage.

   *

   * @var \Drupal\Core\Config\Entity\ConfigEntityStorageInterface

   */

  protected $storage;

  /**

   * The renderer.

   *

   * @var \Drupal\Core\Render\RendererInterface

   */

  protected $renderer;

  /**

   * The key value.

   *

   * @var string

   */

  protected $key = 'muahahaha';

  /**

   * {@inheritdoc}

   */

  protected function setUp(): void {

    parent::setUp();

    $this->installConfig(['whatsapp_test', 'key', 'whatsapp']);

    $this->storage = $this->container

      ->get('entity_type.manager')

      ->getStorage('block');

    $this->block = $this->storage->create([

      'id' => 'whatsappblock_test',

      'theme' => 'stark',

      'plugin' => 'whatsapp_block',

    ]);

    $this->block->save();

    $this->container->get('cache.render')->deleteAll();

    $this->renderer = $this->container->get('renderer');

  }

  /**

   * Tests the rendering of blocks.

   */

  public function testBasicRendering() {

    $entity = $this->storage->load('whatsappblock_test');

    $builder = $this->container->get('entity_type.manager')->getViewBuilder('block');

    $output = $builder->view($entity, 'block');

    $expected = [];

    $expected[] = '<div id="block-whatsappblock-test">';

    $expected[] = '  ';

    $expected[] = '    ';

    $expected[] = '      <script defer src="//widget.tochat.be/bundle.js?key=' . $this->key . '"></script>';

    $expected[] = '  </div>';

    $expected[] = '';

    $expected_output = implode("\n", $expected);

    $this->assertEquals($expected_output, $this->renderer->renderRoot($output));

  }

}