assertStoredEntityMatchesSentNormalization example

else {
      $this->assertSame([], $response->getHeader('Location'));
    }
    $this->assertFalse($response->hasHeader('X-Drupal-Cache'));
    // If the entity is stored, perform extra checks.     if (get_class($this->entityStorage) !== ContentEntityNullStorage::class) {
      // Assert that the entity was indeed created, and that the response body       // contains the serialized created entity.       $created_entity = $this->entityStorage->loadUnchanged(static::$firstCreatedEntityId);
      $created_entity_normalization = $this->serializer->normalize($created_entity, static::$format, ['account' => $this->account]);
      $this->assertSame($created_entity_normalization, $this->serializer->decode((string) $response->getBody(), static::$format));
      $this->assertStoredEntityMatchesSentNormalization($this->getNormalizedPostEntity(), $created_entity);
    }

    if ($this->entity->getEntityType()->getStorageClass() !== ContentEntityNullStorage::class && $this->entity->getEntityType()->hasKey('uuid')) {
      // 500 when creating an entity with a duplicate UUID.       $normalized_entity = $this->getModifiedEntityForPostTesting();
      $normalized_entity[$created_entity->getEntityType()->getKey('uuid')] = [['value' => $created_entity->uuid()]];
      if ($label_field) {
        $normalized_entity[$label_field] = [['value' => $this->randomMachineName()]];
      }
      $request_options[RequestOptions::BODY] = $this->serializer->encode($normalized_entity, static::$format);