function let()
{
$this->filter = new FilterBuilder();
$config = new Configuration();
$parser = new SchemaYamlParser($config->getSchemaFolder());
$this->schema = $parser->parse('ad', 'user');
$this->collection = new OperatorCollection();
$this->collection->addLdapObjectSchema($this->schema);
$this->collection->addLdapObjectSchema($parser->parse('ad', 'ou'));
$this->beConstructedThrough('getInstance', [$this->schema, $this->collection, AttributeConverterInterface::TYPE_SEARCH_TO]);
}