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    TermKernelTest.php 5.25 KiB
    <?php
    
    namespace Drupal\Tests\taxonomy\Kernel;
    
    use Drupal\taxonomy\Entity\Term;
    use Drupal\KernelTests\KernelTestBase;
    use Drupal\Tests\taxonomy\Functional\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');
      }
    
      /**
       * Deleting terms should also remove related vocabulary.
       * Deleting an invalid term should silently fail.
       */
      public function testTermDelete() {
        $vocabulary = $this->createVocabulary();
        $valid_term = $this->createTerm($vocabulary);
        // Delete a valid term.
        $valid_term->delete();
        $terms = entity_load_multiple_by_properties('taxonomy_term', ['vid' => $vocabulary->id()]);
        $this->assertTrue(empty($terms), 'Vocabulary is empty after deletion');
    
        // Delete an invalid term. Should not throw any notices.
        entity_delete_multiple('taxonomy_term', [42]);
      }
    
      /**
       * 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.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.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);
        $this->assertEqual(1, count($tree), 'We have one parent with depth 1.');
    
        // Count all vocabulary tree elements.
        $tree = $taxonomy_storage->loadTree($vocabulary->id());
        $this->assertEqual(8, count($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::entityManager()->getStorage('taxonomy_term');
        // Count parents of $term[2].
        $parents = $storage->loadParents($term[2]->id());
        $this->assertEqual(2, count($parents), 'The term has two parents.');
    
        // Count parents of $term[3].
        $parents = $storage->loadParents($term[3]->id());
        $this->assertEqual(1, count($parents), 'The term has one parent.');
    
        // Identify all ancestors of $term[2].
        $ancestors = $storage->loadAllParents($term[2]->id());
        $this->assertEqual(4, count($ancestors), 'The term has four ancestors including the term itself.');
    
        // Identify all ancestors of $term[3].
        $ancestors = $storage->loadAllParents($term[3]->id());
        $this->assertEqual(5, count($ancestors), 'The term has five ancestors including the term itself.');
      }
    
    }