/**
* Check that you can delete an item from the arraycollection based on key.
*/
public function testOffsetUnset()
{
$this->_arrayCollection = new Messaging\ArrayCollection($this->_data);
$data = array('foo' => 'foo1', 'bar' => 'bar1');
$this->assertEquals($data, $this->_arrayCollection->offsetGet(0));
$this->assertEquals(2, count($this->_arrayCollection));
$this->_arrayCollection->offsetUnset(0);
$this->assertEquals(1, count($this->_arrayCollection));
}