/**
* Method to test getPrimaryKey().
*
* @return void
*
* @covers Windwalker\DataMapper\AbstractDataMapper::getPrimaryKey
*/
public function testGetPrimaryKey()
{
$this->assertEquals('id', $this->instance->getPrimaryKey());
$mapper = new DataMapper('ww_flower', array('a', 'b'));
$this->assertEquals(array('a', 'b'), $mapper->getPrimaryKey());
}