class TermValidationTest

class TermValidationTest extends EntityKernelTestBase {
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'taxonomy',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->installEntitySchema('taxonomy_term');
  }
  
  /**
   * Tests the term validation constraints.
   */
  public function testValidation() {
    $this->entityTypeManager
      ->getStorage('taxonomy_vocabulary')
      ->create([
      'vid' => 'tags',
      'name' => 'Tags',
    ])
      ->save();
    $term = $this->entityTypeManager
      ->getStorage('taxonomy_term')
      ->create([
      'name' => 'test',
      'vid' => 'tags',
    ]);
    $violations = $term->validate();
    $this->assertCount(0, $violations, 'No violations when validating a default term.');
    $term->set('name', $this->randomString(256));
    $violations = $term->validate();
    $this->assertCount(1, $violations, 'Violation found when name is too long.');
    $this->assertEquals('name.0.value', $violations[0]->getPropertyPath());
    $field_label = $term->get('name')
      ->getFieldDefinition()
      ->getLabel();
    $this->assertEquals(t('%name: may not be longer than @max characters.', [
      '%name' => $field_label,
      '@max' => 255,
    ]), $violations[0]->getMessage());
    $term->set('name', NULL);
    $violations = $term->validate();
    $this->assertCount(1, $violations, 'Violation found when name is NULL.');
    $this->assertEquals('name', $violations[0]->getPropertyPath());
    $this->assertEquals('This value should not be null.', $violations[0]->getMessage());
    $term->set('name', 'test');
    $term->set('parent', 9999);
    $violations = $term->validate();
    $this->assertCount(1, $violations, 'Violation found when term parent is invalid.');
    $this->assertEquals(new FormattableMarkup('The referenced entity (%type: %id) does not exist.', [
      '%type' => 'taxonomy_term',
      '%id' => 9999,
    ]), $violations[0]->getMessage());
    $term->set('parent', 0);
    $violations = $term->validate();
    $this->assertCount(0, $violations, 'No violations for parent id 0.');
  }

}