public function testGivenNonEmptyListWithForwardedIterator_isNotEmpty()
{
$references = new ReferenceList();
$references->addNewReference(new PropertyNoValueSnak(1));
$references->next();
$this->assertFalse($references->valid(), 'post condition');
$this->assertFalse($references->isEmpty());
$this->assertFalse($references->valid(), 'pre condition');
}
