PagerExampleTest.php in Examples for Developers 8

Namespace

Drupal\Tests\pager_example\Functional

File

pager_example/tests/src/Functional/PagerExampleTest.php

<?php

namespace Drupal\Tests\pager_example\Functional;

use Drupal\Tests\examples\Functional\ExamplesBrowserTestBase;

/**
 * Tests paging.
 *
 * @group pager_example
 * @group examples
 */
class PagerExampleTest extends ExamplesBrowserTestBase {

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  /**
   * {@inheritdoc}
   */
  public static $modules = [
    'pager_example',
    'node',
  ];

  /**
   * {@inheritdoc}
   */
  protected function setUp() {
    parent::setUp();

    // Log in a user to prevent caching from affecting the results.
    $normalUser = $this
      ->drupalCreateUser();
    $this
      ->drupalLogin($normalUser);
  }

  /**
   * Confirms nodes paging works correctly on page "pager_example".
   */
  public function testPagerExamplePage() {
    $assert = $this
      ->assertSession();
    $nodes = [];
    $nodes[] = $this
      ->drupalCreateNode();
    $this
      ->drupalGet('examples/pager-example');
    $assert
      ->linkNotExists('Next');
    $assert
      ->linkNotExists('Previous');

    // Create 5 new nodes.
    for ($i = 1; $i <= 5; $i++) {
      $nodes[] = $this
        ->drupalCreateNode([
        'title' => "Node number {$i}",
      ]);
    }

    // The pager pages are cached, so flush to see the 5 more nodes.
    drupal_flush_all_caches();

    // Check 'Next' link on first page.
    $this
      ->drupalGet('examples/pager-example');
    $assert
      ->statusCodeEquals(200);
    $assert
      ->linkByHrefExists('?page=1');
    $assert
      ->pageTextContains($nodes[5]
      ->getTitle());

    // Check the last page.
    $this
      ->drupalGet('examples/pager-example', [
      'query' => [
        'page' => 2,
      ],
    ]);
    $assert
      ->statusCodeEquals(200);
    $assert
      ->linkNotExists('Next');
    $assert
      ->linkByHrefExists('?page=1');
    $assert
      ->pageTextContains($nodes[1]
      ->getTitle());
  }

}

Classes

Name	Description
PagerExampleTest	Tests paging.