class EntityValidationTest

class EntityValidationTest extends EntityKernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'filter',
        'text',
        'language',
    ];
    
    /**
     * @var string
     */
    protected $entityName;
    
    /**
     * @var \Drupal\user\Entity\User
     */
    protected $entityUser;
    
    /**
     * @var string
     */
    protected $entityFieldText;
    
    /**
     * @var array
     */
    protected array $cachedDiscoveries;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Enable an additional language.
        ConfigurableLanguage::createFromLangcode('de')->save();
        $this->installEntitySchema('entity_test_mul');
        $this->installEntitySchema('entity_test_mul_langcode_key');
        $this->installEntitySchema('entity_test_mul_changed');
        $this->installEntitySchema('entity_test_rev');
        $this->installEntitySchema('entity_test_mulrev');
        $this->installEntitySchema('entity_test_mulrev_changed');
        // Create the test field.
        $this->container
            ->get('module_handler')
            ->loadInclude('entity_test', 'install');
        entity_test_install();
        // Install required default configuration for filter module.
        $this->installConfig([
            'system',
            'filter',
        ]);
    }
    
    /**
     * Creates a test entity.
     *
     * @param string $entity_type
     *   An entity type.
     *
     * @return \Drupal\Core\Entity\EntityInterface
     *   The created test entity.
     */
    protected function createTestEntity($entity_type) : EntityInterface {
        $this->entityName = $this->randomMachineName();
        $this->entityUser = $this->createUser();
        // Pass in the value of the name field when creating. With the user
        // field we test setting a field after creation.
        $entity = $this->container
            ->get('entity_type.manager')
            ->getStorage($entity_type)
            ->create();
        $entity->user_id->target_id = $this->entityUser
            ->id();
        $entity->name->value = $this->entityName;
        // Set a value for the test field.
        if ($entity->hasField('field_test_text')) {
            $this->entityFieldText = $this->randomMachineName();
            $entity->field_test_text->value = $this->entityFieldText;
        }
        return $entity;
    }
    
    /**
     * Tests validating test entity types.
     */
    public function testValidation() : void {
        // Ensure that the constraint manager is marked as cached cleared.
        // Use the protected property on the cache_clearer first to check whether
        // the constraint manager is added there.
        $plugin_cache_clearer = \Drupal::service('plugin.cache_clearer');
        $get_cached_discoveries = function () {
            return $this->cachedDiscoveries;
        };
        $get_cached_discoveries = $get_cached_discoveries->bindTo($plugin_cache_clearer, $plugin_cache_clearer);
        $cached_discoveries = $get_cached_discoveries();
        $cached_discovery_classes = [];
        foreach ($cached_discoveries as $cached_discovery) {
            $cached_discovery_classes[] = get_class($cached_discovery);
        }
        $this->assertContains('Drupal\\Core\\Validation\\ConstraintManager', $cached_discovery_classes);
        // All entity variations have to have the same results.
        foreach (entity_test_entity_types() as $entity_type) {
            $this->checkValidation($entity_type);
        }
    }
    
    /**
     * Executes the validation test set for a defined entity type.
     *
     * @param string $entity_type
     *   The entity type to run the tests with.
     */
    protected function checkValidation($entity_type) : void {
        $entity = $this->createTestEntity($entity_type);
        $violations = $entity->validate();
        $this->assertEquals(0, $violations->count(), 'Validation passes.');
        // Test triggering a fail for each of the constraints specified.
        $test_entity = clone $entity;
        $test_entity->id->value = -1;
        $violations = $test_entity->validate();
        $this->assertEquals(1, $violations->count(), 'Validation failed.');
        $this->assertEquals('ID: The integer must be larger or equal to 0.', $violations[0]->getMessage());
        $test_entity = clone $entity;
        $test_entity->uuid->value = $this->randomString(129);
        $violations = $test_entity->validate();
        $this->assertEquals(1, $violations->count(), 'Validation failed.');
        $this->assertEquals('UUID: may not be longer than 128 characters.', $violations[0]->getMessage());
        $test_entity = clone $entity;
        $langcode_key = $this->entityTypeManager
            ->getDefinition($entity_type)
            ->getKey('langcode');
        $test_entity->{$langcode_key}->value = $this->randomString(13);
        $violations = $test_entity->validate();
        // This should fail on AllowedValues and Length constraints.
        $this->assertEquals(2, $violations->count(), 'Validation failed.');
        $this->assertEquals('This value is too long. It should have 12 characters or less.', $violations[0]->getMessage());
        $this->assertEquals('The value you selected is not a valid choice.', $violations[1]->getMessage());
        $test_entity = clone $entity;
        $test_entity->type->value = NULL;
        $violations = $test_entity->validate();
        $this->assertEquals(1, $violations->count(), 'Validation failed.');
        $this->assertEquals('This value should not be null.', $violations[0]->getMessage());
        $test_entity = clone $entity;
        $test_entity->name->value = $this->randomString(65);
        $violations = $test_entity->validate();
        $this->assertEquals(1, $violations->count(), 'Validation failed.');
        $this->assertEquals('Name: may not be longer than 64 characters.', $violations[0]->getMessage());
        // Make sure the information provided by a violation is correct.
        $violation = $violations[0];
        $this->assertEquals($test_entity, $violation->getRoot()
            ->getValue(), 'Violation root is entity.');
        $this->assertEquals('name.0.value', $violation->getPropertyPath(), 'Violation property path is correct.');
        $this->assertEquals($test_entity->name->value, $violation->getInvalidValue(), 'Violation contains invalid value.');
        $test_entity = clone $entity;
        $test_entity->set('user_id', 9999);
        $violations = $test_entity->validate();
        $this->assertEquals(1, $violations->count(), 'Validation failed.');
        $this->assertEquals('The referenced entity (user: 9999) does not exist.', $violations[0]->getMessage());
        $test_entity = clone $entity;
        $test_entity->field_test_text->format = $this->randomString(33);
        $violations = $test_entity->validate();
        $this->assertEquals(1, $violations->count(), 'Validation failed.');
        $this->assertEquals('The value you selected is not a valid choice.', $violations[0]->getMessage());
        // Make sure the information provided by a violation is correct.
        $violation = $violations[0];
        $this->assertEquals($test_entity, $violation->getRoot()
            ->getValue(), 'Violation root is entity.');
        $this->assertEquals('field_test_text.0.format', $violation->getPropertyPath(), 'Violation property path is correct.');
        $this->assertEquals($test_entity->field_test_text->format, $violation->getInvalidValue(), 'Violation contains invalid value.');
    }
    
    /**
     * Tests composite constraints.
     */
    public function testCompositeConstraintValidation() : void {
        $entity = $this->createTestEntity('entity_test_composite_constraint');
        $violations = $entity->validate();
        $this->assertEquals(0, $violations->count());
        // Trigger violation condition.
        $entity->name->value = 'test';
        $entity->type->value = 'test2';
        $violations = $entity->validate();
        $this->assertEquals(1, $violations->count());
        // Make sure we can determine this is composite constraint.
        $constraint = $violations[0]->getConstraint();
        $this->assertInstanceOf(CompositeConstraintBase::class, $constraint);
        $this->assertEquals('type', $violations[0]->getPropertyPath());
        
        /** @var \Drupal\Core\Entity\Plugin\Validation\Constraint\CompositeConstraintBase $constraint */
        $this->assertEquals([
            'name',
            'type',
        ], $constraint->coversFields(), 'Information about covered fields can be retrieved.');
    }
    
    /**
     * Tests the EntityChangedConstraintValidator with multiple translations.
     */
    public function testEntityChangedConstraintOnConcurrentMultilingualEditing() : void {
        $this->installEntitySchema('entity_test_mulrev_changed');
        $storage = \Drupal::entityTypeManager()->getStorage('entity_test_mulrev_changed');
        // Create a test entity.
        $entity = $this->createTestEntity('entity_test_mulrev_changed');
        $entity->save();
        $entity->setChangedTime($entity->getChangedTime() - 1);
        $violations = $entity->validate();
        $this->assertEquals(1, $violations->count());
        $this->assertEquals('The content has either been modified by another user, or you have already submitted modifications. As a result, your changes cannot be saved.', $violations[0]->getMessage());
        $entity = $storage->loadUnchanged($entity->id());
        $translation = $entity->addTranslation('de');
        $entity->save();
        // Ensure that the new translation has a newer changed timestamp than the
        // default translation.
        $this->assertGreaterThan($entity->getChangedTime(), $translation->getChangedTime());
        // Simulate concurrent form editing by saving the entity with an altered
        // non-translatable field in order for the changed timestamp to be updated
        // across all entity translations.
        $original_entity_time = $entity->getChangedTime();
        $entity->set('not_translatable', $this->randomString());
        $entity->save();
        // Simulate form submission of an uncached form by setting the previous
        // timestamp of an entity translation on the saved entity object. This
        // happens in the entity form API where we put the changed timestamp of
        // the entity in a form hidden value and then set it on the entity which on
        // form submit is loaded from the storage if the form is not yet cached.
        $entity->setChangedTime($original_entity_time);
        // Setting the changed timestamp from the user input on the entity loaded
        // from the storage is used as a prevention from saving a form built with a
        // previous version of the entity and thus reverting changes by other users.
        $violations = $entity->validate();
        $this->assertEquals(1, $violations->count());
        $this->assertEquals('The content has either been modified by another user, or you have already submitted modifications. As a result, your changes cannot be saved.', $violations[0]->getMessage());
    }

}