namespace Drupal\Tests\field\Functional\EntityReference;
-use Drupal\Component\Utility\Unicode;
use Drupal\Tests\SchemaCheckTestTrait;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;
// Create a node to be referenced.
$referenced_node = $this->drupalCreateNode(['type' => 'referenced_content']);
- $field_name = Unicode::strtolower($this->randomMachineName());
+ $field_name = mb_strtolower($this->randomMachineName());
$field_storage = FieldStorageConfig::create([
'field_name' => $field_name,
'entity_type' => 'node',
$referenced_node_type = $this->drupalCreateContentType(['type' => 'referenced_config_to_delete']);
$referenced_node_type2 = $this->drupalCreateContentType(['type' => 'referenced_config_to_preserve']);
- $field_name = Unicode::strtolower($this->randomMachineName());
+ $field_name = mb_strtolower($this->randomMachineName());
$field_storage = FieldStorageConfig::create([
'field_name' => $field_name,
'entity_type' => 'node',