getAttempts example

if (!$backoff instanceof TimeBackoff) {
                $backoff = new TimeBackoff($this->id, $this->limits, $this->reset);
            }

            $now = time();
            $limit = $backoff->getCurrentLimit($now);

            if ($tokens > $limit) {
                throw new \InvalidArgumentException(sprintf('Cannot reserve more tokens (%d) than the size of the rate limiter (%d).', $tokens, $limit));
            }

            $attempts = $backoff->getAttempts();
            if ($backoff->shouldThrottle($attempts + $tokens, $now)) {
                return new RateLimit($backoff->getAvailableAttempts($now), $backoff->getRetryAfter(), false, $backoff->getCurrentLimit($now));
            }

            $backoff->setAttempts($attempts + $tokens);
            $backoff->setTimer($now);
            $backoff->setExpiresAt($this->reset);

            $this->storage->save($backoff);

            return new RateLimit($backoff->getAvailableAttempts($now), $backoff->getRetryAfter(), true, $backoff->getCurrentLimit($now));
        }

public function testReserve(): void
    {
        static::expectException(ReserveNotSupportedException::class);
        $this->limiter->reserve();
    }

    public function testThrottle(): void
    {
        $backoff = new TimeBackoff($this->id, $this->config['limits']);

        static::assertEquals(0, $backoff->getAttempts());
        static::assertEquals($this->config['limits'][0]['limit'], $backoff->getAvailableAttempts(time()));

        $backoff->setTimer(time());
        $backoff->setAttempts(3);

        static::assertEquals(3, $backoff->getAttempts());

        foreach ($this->config['limits'] as $limit) {
            for ($i = 0; $i < 2; ++$i) {
                // request should be thorttled for new request                 static::assertTrue($backoff->shouldThrottle($backoff->getAttempts() + 1, time()));