public function testLoadGroupByIdentifier()
{
$gatewayMock = $this->getGatewayMock();
$gatewayMock->expects($this->once())->method('loadGroupDataByIdentifier')->with($this->equalTo('content'))->will($this->returnValue(array()));
$mapperMock = $this->getMapperMock();
$mapperMock->expects($this->once())->method('extractGroupsFromRows')->with($this->equalTo(array()))->will($this->returnValue(array(new Group())));
$handler = $this->getHandler();
$res = $handler->loadGroupByIdentifier('content');
$this->assertEquals(new Group(), $res);
}