public function testShouldPopValueFromEnd()
{
$value = 'value';
$lastValue = 'value2';
$this->list->add($value);
$this->list->add($lastValue);
$this->assertCount(2, $this->list);
$result = $this->list->pop();
$this->assertCount(1, $this->list);
$this->assertEquals($lastValue, $result);
}
