blazy-8.x-2.x-dev/tests/src/Unit/BlazyGridUnitTest.php

<?php

namespace Drupal\Tests\blazy\Unit;

use Drupal\Tests\UnitTestCase;
use Drupal\Tests\blazy\Traits\BlazyUnitTestTrait;
use Drupal\blazy\Blazy;
use Drupal\blazy\Theme\Grid;

/**
 * @coversDefaultClass \Drupal\blazy\Theme\Grid
 *
 * @group blazy
 */
class BlazyGridUnitTest extends UnitTestCase {

  use BlazyUnitTestTrait;

  /**
   * Tests \Drupal\blazy\Theme\Grid::build().
   *
   * @covers ::build
   */
  public function testBuild() {
    $settings                = Blazy::init();
    $settings['grid']        = '4';
    $settings['grid_medium'] = '3';
    $settings['grid_small']  = '2';
    $settings['style']       = 'grid';

    $items = [];
    foreach (range(1, 3) as $key) {
      $items[] = ['#markup' => '<img src="/core/misc/druplicon.png" alt="thumbnail ' . $key . '">'];
    }

    $element = Grid::build($items, $settings);
    $this->assertEquals('item_list', $element['#theme']);
  }

}