public function testGetNext() { $col = new PropelCollection(); $this->assertNull($col->getNext(), 'getNext() returns null on an empty collection'); $data = array('bar1', 'bar2', 'bar3'); $col = new PropelCollection($data); $this->assertEquals('bar2', $col->getNext(), 'getNext() returns the second element when the internal pointer is at the beginning of the list'); $this->assertEquals('bar2', $col->getCurrent(), 'getNext() increments the internal pointer'); $col->getNext(); $this->assertNull($col->getNext(), 'getNext() returns null when the internal pointer is at the end of the list'); }