/** * @expectedException \Novuso\System\Exception\UnderflowException */ public function test_that_front_throws_exception_when_empty() { LinkedQueue::of('int')->front(); }
/** * {@inheritdoc} */ public function clear() { if ($this->running) { throw new Exception('Cannot clear processes while running'); } $this->queue = LinkedQueue::of(Process::class); $this->pids = []; $this->procs = []; }