/**
* Test collection previous position
*
* @depends testKey
* @depends testCurrent
* @depends testNext
* @return void
*/
public function testPrev()
{
$this->collection->next();
$this->collection->prev();
$this->assertEquals(0, $this->collection->key());
$this->assertEquals(1, $this->collection->current());
$this->collection->prev();
$this->assertNull($this->collection->key());
$this->assertFalse($this->collection->current());
}
