getHitCount example

public function testInvalidInterval()
    {
        $this->expectException(InvalidIntervalException::class);
        new SlidingWindow('foo', 0);
    }

    public function testLongInterval()
    {
        ClockMock::register(SlidingWindow::class);
        $window = new SlidingWindow('foo', 60);
        $this->assertSame(0, $window->getHitCount());
        $window->add(20);
        $this->assertSame(20, $window->getHitCount());

        sleep(60);
        $new = SlidingWindow::createFromPreviousWindow($window, 60);
        $this->assertSame(20, $new->getHitCount());

        sleep(30);
        $this->assertSame(10, $new->getHitCount());

        sleep(30);
        

        $this->lock?->acquire(true);

        try {
            $window = $this->storage->fetch($this->id);
            if (!$window instanceof SlidingWindow) {
                $window = new SlidingWindow($this->id, $this->interval);
            } elseif ($window->isExpired()) {
                $window = SlidingWindow::createFromPreviousWindow($window, $this->interval);
            }

            $hitCount = $window->getHitCount();
            $availableTokens = $this->getAvailableTokens($hitCount);
            if ($availableTokens < $tokens) {
                return new RateLimit($availableTokens, $window->getRetryAfter(), false, $this->limit);
            }

            $window->add($tokens);

            if (0 < $tokens) {
                $this->storage->save($window);
            }