public function testPushAndUnshift()
{
$composite = new CompositeField(new TextField('Middle'));
$composite->push(new TextField('End'));
/* There are now 2 fields in the set */
$this->assertEquals(2, $composite->getChildren()->Count());
/* The most recently added field is at the end of the set */
$this->assertEquals('End', $composite->getChildren()->Last()->getName());
$composite->unshift(new TextField('Beginning'));
/* There are now 3 fields in the set */
$this->assertEquals(3, $composite->getChildren()->Count());
/* The most recently added field is at the beginning of the set */
$this->assertEquals('Beginning', $composite->getChildren()->First()->getName());
}
