class EntityHasFieldConstraintValidatorTest

class EntityHasFieldConstraintValidatorTest extends EntityKernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'entity_test_constraints',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installEntitySchema('entity_test_constraints');
        $this->createUser();
    }
    public function testValidation() : void {
        $this->state
            ->set('entity_test_constraints.build', [
            'EntityHasField' => 'body',
        ]);
        
        /** @var \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager */
        $entity_type_manager = $this->container
            ->get('entity_type.manager');
        $entity_type_manager->clearCachedDefinitions();
        // Clear the typed data cache so that the entity has the correct constraints
        // during validation.
        $this->container
            ->get('typed_data_manager')
            ->clearCachedDefinitions();
        $storage = $entity_type_manager->getStorage('entity_test_constraints');
        
        /** @var \Drupal\entity_test\Entity\EntityTestConstraints $entity */
        $entity = $storage->create();
        // We should get a violation if we try to validate the entity before the
        // field has been created.
        $violations = $entity->validate();
        $this->assertCount(1, $violations);
        $this->assertEquals('The entity must have the body field.', $violations[0]->getMessage());
        $storage->save($entity);
        // Create the field.
        $field_storage = FieldStorageConfig::create([
            'type' => 'string',
            'entity_type' => $entity->getEntityTypeId(),
            'field_name' => 'body',
        ]);
        $field_storage->save();
        FieldConfig::create([
            'field_storage' => $field_storage,
            'bundle' => $entity->bundle(),
        ])
            ->save();
        // Now that the field has been created, there should be no violations.
        $this->assertCount(0, $storage->loadUnchanged(1)
            ->validate());
    }

}