trait SchemaConfigListenerTestTrait

trait SchemaConfigListenerTestTrait {
  
  /**
   * Tests \Drupal\Core\Config\Development\ConfigSchemaChecker.
   */
  public function testConfigSchemaChecker() : void {
    // Test a non-existing schema.
    $message = 'Expected SchemaIncompleteException thrown';
    try {
      $this->config('config_schema_test.schemaless')
        ->set('foo', 'bar')
        ->save();
      $this->fail($message);
    } catch (SchemaIncompleteException $e) {
      $this->assertEquals('No schema for config_schema_test.schemaless', $e->getMessage());
    }
    // Test a valid schema.
    $message = 'Unexpected SchemaIncompleteException thrown';
    $config = $this->config('config_test.types')
      ->set('int', 10);
    try {
      $config->save();
    } catch (SchemaIncompleteException $e) {
      $this->fail($message);
    }
    // Test a valid schema, where the value is accessed before saving. Ensures
    // that overridden data is correctly reset after casting.
    $message = 'Unexpected SchemaIncompleteException thrown';
    $config = $this->config('config_test.types')
      ->set('int', '10');
    $config->get('int');
    try {
      $config->save();
    } catch (SchemaIncompleteException $e) {
      $this->fail($message);
    }
    // Test an invalid schema.
    $message = 'Expected SchemaIncompleteException thrown';
    $config = $this->config('config_test.types')
      ->set('foo', 'bar')
      ->set('array', 1);
    try {
      $config->save();
      $this->fail($message);
    } catch (SchemaIncompleteException $e) {
      $this->assertEquals("Schema errors for config_test.types with the following errors: config_test.types:array variable type is integer but applied schema class is Drupal\\Core\\Config\\Schema\\Sequence, config_test.types:foo missing schema, 0 [foo] 'foo' is not a supported key.", $e->getMessage());
    }
  }

}