def test_backoff_reset_after_redirect(self):
retry = Retry(total=100, redirect=5, backoff_factor=0.2)
retry = retry.increment(method='GET')
retry = retry.increment(method='GET')
assert retry.get_backoff_time() == 0.4
redirect_response = HTTPResponse(status=302,
headers={'location': 'test'})
retry = retry.increment(method='GET', response=redirect_response)
assert retry.get_backoff_time() == 0
retry = retry.increment(method='GET')
retry = retry.increment(method='GET')
assert retry.get_backoff_time() == 0.4
def test_backoff(self):
""" Backoff is computed correctly """
max_backoff = Retry.BACKOFF_MAX
retry = Retry(total=100, backoff_factor=0.2)
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 retry.get_backoff_time() == 0.4 # Start backoff
retry = retry.increment(method='GET')
assert retry.get_backoff_time() == 0.8
retry = retry.increment(method='GET')
assert retry.get_backoff_time() == 1.6
for _ in xrange(10):
retry = retry.increment(method='GET')
assert retry.get_backoff_time() == max_backoff
def test_zero_backoff(self):
retry = Retry()
assert retry.get_backoff_time() == 0
retry = retry.increment(method='GET')
retry = retry.increment(method='GET')
assert retry.get_backoff_time() == 0