Method test_backoff_jitter

test/test_retry.py:196–223

Backoff with jitter is computed correctly

(self)

        assert retry.parse_retry_after(str(2)) == 1

    def test_backoff_jitter(self) -> None:
        """Backoff with jitter is computed correctly"""
        max_backoff = 1
        jitter = 0.4
        retry = Retry(
            total=100,
            backoff_factor=0.2,
            backoff_max=max_backoff,
            backoff_jitter=jitter,
        )
        assert retry.get_backoff_time() == 0  # First request

        retry = retry.increment(method="GET")
        assert retry.get_backoff_time() == 0  # First retry

        retry = retry.increment(method="GET")
        assert retry.backoff_factor == 0.2
        assert retry.total == 98
        assert 0.4 <= retry.get_backoff_time() <= 0.8  # Start backoff

        retry = retry.increment(method="GET")
        assert 0.8 <= retry.get_backoff_time() <= max_backoff

        retry = retry.increment(method="GET")
        assert retry.get_backoff_time() == max_backoff

        retry = retry.increment(method="GET")
        assert retry.get_backoff_time() == max_backoff

    def test_zero_backoff(self) -> None:
        retry = Retry()