public function testGetResourceProperties()
{
$graph = new ExtendedGraph();
$graph->add_resource_triple('http://some/subject/1', 'http://some/predicate', 'http://value/1');
$graph->add_resource_triple('http://some/subject/2', 'http://some/predicate', 'http://value/2');
$graph->add_resource_triple('http://some/subject/3', 'http://some/predicate', 'http://value/3');
$values = $graph->get_resource_properties('http://some/predicate');
$this->assertEquals($values, array('http://value/1', 'http://value/2', 'http://value/3'), 'should have returned 3 values');
}