public function getIdentifierReturnsTheIdentifier()
{
$nodeData = $this->getMockBuilder(NodeData::class)->disableOriginalConstructor()->getMock();
$nodeData->expects($this->once())->method('getIdentifier')->will($this->returnValue('theidentifier'));
$context = $this->getMockBuilder(Context::class)->disableOriginalConstructor()->getMock();
$contextualizedNode = new Node($nodeData, $context);
$this->assertEquals('theidentifier', $contextualizedNode->getIdentifier());
}