public function testNullForUnknownId()
{
$connection = $this->getMockBuilder('\\SMW\\MediaWiki\\Database')->disableOriginalConstructor()->getMock();
$connection->expects($this->once())->method('selectRow')->will($this->returnValue(false));
$instance = new DataItemByIdFinder($connection, 'foo');
$this->assertNull($instance->getDataItemForId(42));
}
/**
* Delete all cached information.
*
* @since 1.8
*/
public function clearCaches()
{
$this->prop_ids = array();
$this->prop_sortkeys = array();
$this->regular_ids = array();
$this->regular_sortkeys = array();
$this->dataItemByIdFinder->clear();
}