public function testLoadGroupByIdentifierThrowsNotFoundException()
{
$handler = $this->getObjectStateHandler();
$gatewayMock = $this->getGatewayMock();
$gatewayMock->expects($this->once())->method('loadObjectStateGroupDataByIdentifier')->with($this->equalTo('unknown'))->will($this->returnValue(array()));
$handler->loadGroupByIdentifier('unknown');
}