Kraken\_Unit\Loop\Tick\TickFiniteQueueTest::testApiTick_InvokesOnlyCallbacksThatWereOnQueueBeforeTick PHP Method

    public function testApiTick_InvokesOnlyCallbacksThatWereOnQueueBeforeTick()
    {
        $queue = $this->createTickQueue();
        $str = '';
        $queue->add(function () use(&$str) {
            $str .= 'A';
        });
        $queue->add(function () use(&$str, $queue) {
            $queue->add(function () use(&$str) {
                $str .= 'D';
            });
            $str .= 'B';
        });
        $queue->add(function () use(&$str, $queue) {
            $str .= 'C';
            $queue->add(function () use(&$str) {
                $str .= 'E';
            });
        });
        $queue->tick();
        $this->assertSame('ABC', $str);
    }