NodeLoadHooksTest.php

<?php

/**
 * @file
 * Definition of Drupal\node\Tests\NodeLoadHooksTest.
 */
namespace Drupal\node\Tests;


/**
 * Tests for the hooks invoked during node_load().
 */
class NodeLoadHooksTest extends NodeTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = array(
    'node_test',
  );
  public static function getInfo() {
    return array(
      'name' => 'Node load hooks',
      'description' => 'Test the hooks invoked when a node is being loaded.',
      'group' => 'Node',
    );
  }

  /**
   * Tests that hook_node_load() is invoked correctly.
   */
  function testHookNodeLoad() {

    // Create some sample articles and pages.
    $node1 = $this
      ->drupalCreateNode(array(
      'type' => 'article',
      'status' => NODE_PUBLISHED,
    ));
    $node2 = $this
      ->drupalCreateNode(array(
      'type' => 'article',
      'status' => NODE_PUBLISHED,
    ));
    $node3 = $this
      ->drupalCreateNode(array(
      'type' => 'article',
      'status' => NODE_NOT_PUBLISHED,
    ));
    $node4 = $this
      ->drupalCreateNode(array(
      'type' => 'page',
      'status' => NODE_NOT_PUBLISHED,
    ));

    // Check that when a set of nodes that only contains articles is loaded,
    // the properties added to the node by node_test_load_node() correctly
    // reflect the expected values.
    $nodes = entity_load_multiple_by_properties('node', array(
      'status' => NODE_PUBLISHED,
    ));
    $loaded_node = end($nodes);
    $this
      ->assertEqual($loaded_node->node_test_loaded_nids, array(
      $node1->nid,
      $node2->nid,
    ), 'hook_node_load() received the correct list of node IDs the first time it was called.');
    $this
      ->assertEqual($loaded_node->node_test_loaded_types, array(
      'article',
    ), 'hook_node_load() received the correct list of node types the first time it was called.');

    // Now, as part of the same page request, load a set of nodes that contain
    // both articles and pages, and make sure the parameters passed to
    // node_test_node_load() are correctly updated.
    $nodes = entity_load_multiple_by_properties('node', array(
      'status' => NODE_NOT_PUBLISHED,
    ));
    $loaded_node = end($nodes);
    $this
      ->assertEqual($loaded_node->node_test_loaded_nids, array(
      $node3->nid,
      $node4->nid,
    ), 'hook_node_load() received the correct list of node IDs the second time it was called.');
    $this
      ->assertEqual($loaded_node->node_test_loaded_types, array(
      'article',
      'page',
    ), 'hook_node_load() received the correct list of node types the second time it was called.');
  }

}