SelectionTest.php

<?php

/**
 * @file
 * Contains \Drupal\entity_reference\Tests\Views\SelectionTest.
 */
namespace Drupal\entity_reference\Tests\Views;

use Drupal\simpletest\WebTestBase;

/**
 * Tests entity reference selection handler.
 */
class SelectionTest extends WebTestBase {
  public static $modules = array(
    'views',
    'entity_reference',
    'entity_reference_test',
  );
  public static function getInfo() {
    return array(
      'name' => 'Entity Reference: Selection handler',
      'description' => 'Tests entity reference selection handler provided by Views.',
      'group' => 'Views module integration',
    );
  }

  /**
   * Tests the selection handler.
   */
  public function testSelectionHandler() {

    // Create nodes.
    $type = $this
      ->drupalCreateContentType()->type;
    $node1 = $this
      ->drupalCreateNode(array(
      'type' => $type,
    ));
    $node2 = $this
      ->drupalCreateNode(array(
      'type' => $type,
    ));
    $node3 = $this
      ->drupalCreateNode();
    $nodes = array();
    foreach (array(
      $node1,
      $node2,
      $node3,
    ) as $node) {
      $nodes[$node->type][$node->nid] = $node
        ->label();
    }

    // Build a fake field instance.
    $field = array(
      'translatable' => FALSE,
      'entity_types' => array(),
      'settings' => array(
        'target_type' => 'node',
      ),
      'field_name' => 'test_field',
      'type' => 'entity_reference',
      'cardinality' => '1',
    );
    $instance = array(
      'settings' => array(
        'handler' => 'views',
        'handler_settings' => array(
          'target_bundles' => array(),
          'view' => array(
            'view_name' => 'test_entity_reference',
            'display_name' => 'entity_reference_1',
            'arguments' => array(),
          ),
        ),
      ),
    );

    // Get values from selection handler.
    $handler = entity_reference_get_selection_handler($field, $instance);
    $result = $handler
      ->getReferencableEntities();
    $success = FALSE;
    foreach ($result as $node_type => $values) {
      foreach ($values as $nid => $label) {
        if (!($success = $nodes[$node_type][$nid] == trim(strip_tags($label)))) {

          // There was some error, so break.
          break;
        }
      }
    }
    $this
      ->assertTrue($success, 'Views selection handler returned expected values.');
  }

}