public function sequenceGeneratorCanTakeAPlaceholderString()
{
$this->factory->defineEntity('SpaceShip', array('name' => FieldDef::sequence("Beta %d")));
$this->assertEquals('Beta 1', $this->factory->get('SpaceShip')->getName());
$this->assertEquals('Beta 2', $this->factory->get('SpaceShip')->getName());
$this->assertEquals('Beta 3', $this->factory->get('SpaceShip')->getName());
$this->assertEquals('Beta 4', $this->factory->get('SpaceShip')->getName());
}