In a functional test I try to test a functionality after changing the module configuration:

public function setUp() {
  $config = \Drupal::configFactory()->getEditable('move_file.settings');
  $config->set('vocabulary', 'tags');

The tested functionality is located primarily in MoveFileService.php. But the service does not see the configs. When I debug the configs directly in the service, then I get:

public function __construct(ConfigFactory $config_factory, LoggerChannelFactoryInterface $logger_factory) {
    $this->config = $config_factory->get('move_file.settings');
    $this->logger = $logger_factory->get('move_file');

public static function create(ContainerInterface $container) {
    return new static(

public function configsAreSet() {
    fwrite(STDOUT, "Settings: {$this->config->get('vocabulary')}\n");
    // Returns: Settings:
    // The configuration is null.

    $config = \Drupal::service('config.factory')->getEditable('move_file.settings');
    fwrite(STDOUT, "Settings: {$config->get('vocabulary')}\n");
    // Returns: Settings: tags
    // This returns the expected value. But the good practice is to use the dependency injection.

How can I save the config in the setUp() method of the functional test, so that the service can get the saved configuration, when the test is running?

1 Answer 1


I have found, that the problem was caused, that in the setUp() method of the test class, was at first used the $this->drupalCreateNode([...]) method and then were created the settings. After moving the $config->set(...) method at the beginning of the setUp() method, works everything perfect.


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