public function testSetMergeAndClear()
{
$data = new Dwoo_Data();
$data->setData(array('foo'));
$this->assertEquals(array('foo'), $data->getData());
$data->mergeData(array('baz'), array('bar', 'boo' => 'moo'));
$this->assertEquals(array('foo', 'baz', 'bar', 'boo' => 'moo'), $data->getData());
$data->clear();
$this->assertEquals(array(), $data->getData());
}