TermKernelTest.php in Drupal 8

Namespace

Drupal\Tests\taxonomy\Kernel

File

core/modules/taxonomy/tests/src/Kernel/TermKernelTest.php

<?php

namespace Drupal\Tests\taxonomy\Kernel;

use Drupal\taxonomy\Entity\Term;
use Drupal\KernelTests\KernelTestBase;
use Drupal\Tests\taxonomy\Traits\TaxonomyTestTrait;

/**
 * Kernel tests for taxonomy term functions.
 *
 * @group taxonomy
 */
class TermKernelTest extends KernelTestBase {
  use TaxonomyTestTrait;

  /**
   * {@inheritdoc}
   */
  public static $modules = [
    'filter',
    'taxonomy',
    'text',
    'user',
  ];

  /**
   * {@inheritdoc}
   */
  protected function setUp() {
    parent::setUp();
    $this
      ->installConfig([
      'filter',
    ]);
    $this
      ->installEntitySchema('taxonomy_term');
  }

  /**
   * Tests that a deleted term is no longer in the vocabulary.
   */
  public function testTermDelete() {
    $vocabulary = $this
      ->createVocabulary();
    $valid_term = $this
      ->createTerm($vocabulary);

    // Delete a valid term.
    $valid_term
      ->delete();
    $terms = \Drupal::entityTypeManager()
      ->getStorage('taxonomy_term')
      ->loadByProperties([
      'vid' => $vocabulary
        ->id(),
    ]);
    $this
      ->assertTrue(empty($terms), 'Vocabulary is empty after deletion');
  }

  /**
   * Deleting a parent of a term with multiple parents does not delete the term.
   */
  public function testMultipleParentDelete() {
    $vocabulary = $this
      ->createVocabulary();
    $parent_term1 = $this
      ->createTerm($vocabulary);
    $parent_term2 = $this
      ->createTerm($vocabulary);
    $child_term = $this
      ->createTerm($vocabulary);
    $child_term->parent = [
      $parent_term1
        ->id(),
      $parent_term2
        ->id(),
    ];
    $child_term
      ->save();
    $child_term_id = $child_term
      ->id();
    $parent_term1
      ->delete();
    $term_storage = $this->container
      ->get('entity_type.manager')
      ->getStorage('taxonomy_term');
    $term_storage
      ->resetCache([
      $child_term_id,
    ]);
    $child_term = Term::load($child_term_id);
    $this
      ->assertTrue(!empty($child_term), 'Child term is not deleted if only one of its parents is removed.');
    $parent_term2
      ->delete();
    $term_storage
      ->resetCache([
      $child_term_id,
    ]);
    $child_term = Term::load($child_term_id);
    $this
      ->assertTrue(empty($child_term), 'Child term is deleted if all of its parents are removed.');
  }

  /**
   * Test a taxonomy with terms that have multiple parents of different depths.
   */
  public function testTaxonomyVocabularyTree() {

    // Create a new vocabulary with 6 terms.
    $vocabulary = $this
      ->createVocabulary();
    $term = [];
    for ($i = 0; $i < 6; $i++) {
      $term[$i] = $this
        ->createTerm($vocabulary);
    }

    // Get the taxonomy storage.
    $taxonomy_storage = $this->container
      ->get('entity_type.manager')
      ->getStorage('taxonomy_term');

    // Set the weight on $term[1] so it appears before $term[5] when fetching
    // the parents for $term[2], in order to test for a regression on
    // \Drupal\taxonomy\TermStorageInterface::loadAllParents().
    $term[1]->weight = -1;
    $term[1]
      ->save();

    // $term[2] is a child of 1 and 5.
    $term[2]->parent = [
      $term[1]
        ->id(),
      $term[5]
        ->id(),
    ];
    $term[2]
      ->save();

    // $term[3] is a child of 2.
    $term[3]->parent = [
      $term[2]
        ->id(),
    ];
    $term[3]
      ->save();

    // $term[5] is a child of 4.
    $term[5]->parent = [
      $term[4]
        ->id(),
    ];
    $term[5]
      ->save();

    /**
     * Expected tree:
     * term[0] | depth: 0
     * term[1] | depth: 0
     * -- term[2] | depth: 1
     * ---- term[3] | depth: 2
     * term[4] | depth: 0
     * -- term[5] | depth: 1
     * ---- term[2] | depth: 2
     * ------ term[3] | depth: 3
     */

    // Count $term[1] parents with $max_depth = 1.
    $tree = $taxonomy_storage
      ->loadTree($vocabulary
      ->id(), $term[1]
      ->id(), 1);
    $this
      ->assertCount(1, $tree, 'We have one parent with depth 1.');

    // Count all vocabulary tree elements.
    $tree = $taxonomy_storage
      ->loadTree($vocabulary
      ->id());
    $this
      ->assertCount(8, $tree, 'We have all vocabulary tree elements.');

    // Count elements in every tree depth.
    foreach ($tree as $element) {
      if (!isset($depth_count[$element->depth])) {
        $depth_count[$element->depth] = 0;
      }
      $depth_count[$element->depth]++;
    }
    $this
      ->assertEqual(3, $depth_count[0], 'Three elements in taxonomy tree depth 0.');
    $this
      ->assertEqual(2, $depth_count[1], 'Two elements in taxonomy tree depth 1.');
    $this
      ->assertEqual(2, $depth_count[2], 'Two elements in taxonomy tree depth 2.');
    $this
      ->assertEqual(1, $depth_count[3], 'One element in taxonomy tree depth 3.');

    /** @var \Drupal\taxonomy\TermStorageInterface $storage */
    $storage = \Drupal::entityTypeManager()
      ->getStorage('taxonomy_term');

    // Count parents of $term[2].
    $parents = $storage
      ->loadParents($term[2]
      ->id());
    $this
      ->assertCount(2, $parents, 'The term has two parents.');

    // Count parents of $term[3].
    $parents = $storage
      ->loadParents($term[3]
      ->id());
    $this
      ->assertCount(1, $parents, 'The term has one parent.');

    // Identify all ancestors of $term[2].
    $ancestors = $storage
      ->loadAllParents($term[2]
      ->id());
    $this
      ->assertCount(4, $ancestors, 'The term has four ancestors including the term itself.');

    // Identify all ancestors of $term[3].
    $ancestors = $storage
      ->loadAllParents($term[3]
      ->id());
    $this
      ->assertCount(5, $ancestors, 'The term has five ancestors including the term itself.');
  }

  /**
   * Tests that a Term is renderable when unsaved (preview).
   */
  public function testTermPreview() {
    $entity_manager = \Drupal::entityTypeManager();
    $vocabulary = $this
      ->createVocabulary();

    // Create a unsaved term.
    $term = $entity_manager
      ->getStorage('taxonomy_term')
      ->create([
      'vid' => $vocabulary
        ->id(),
      'name' => 'Inator',
    ]);

    // Confirm we can get the view of unsaved term.
    $render_array = $entity_manager
      ->getViewBuilder('taxonomy_term')
      ->view($term);
    $this
      ->assertTrue(!empty($render_array), 'Term view builder is built.');

    // Confirm we can render said view.
    $rendered = \Drupal::service('renderer')
      ->renderPlain($render_array);
    $this
      ->assertTrue(!empty(trim($rendered)), 'Term is able to be rendered.');
  }

}

Classes

Name	Description
TermKernelTest	Kernel tests for taxonomy term functions.