def test_infinite_retry(self):
backoff = BackoffMock()
# specify infinite retries, but give up after 5
retry = Retry(backoff, -1)
with pytest.raises(ConnectionError):
retry.call_with_retry(self._do, self._fail_inf)
assert self.actual_attempts == 5
assert self.actual_failures == 5
def test_retry(self, retries):
backoff = BackoffMock()
retry = Retry(backoff, retries)
with pytest.raises(ConnectionError):
retry.call_with_retry(self._do, self._fail)
assert self.actual_attempts == 1 + retries
assert self.actual_failures == 1 + retries
assert backoff.reset_calls == 1
assert backoff.calls == retries
def test_retry_on_timeout_retry(self, Class, retries):
retry_on_timeout = retries > 0
c = Class(retry_on_timeout=retry_on_timeout,
retry=Retry(NoBackoff(), retries))
assert c.retry_on_timeout == retry_on_timeout
assert isinstance(c.retry, Retry)
assert c.retry._retries == retries
def test_connect_without_retry_on_os_error(self):
"""Test that the _connect function is not being retried in case of a OSError"""
with patch.object(Connection, "_connect") as _connect:
_connect.side_effect = OSError("")
conn = Connection(retry_on_timeout=True,
retry=Retry(NoBackoff(), 2))
with pytest.raises(ConnectionError):
conn.connect()
assert _connect.call_count == 1
self.clear(conn)
def test_client_retry_on_timeout(self, request):
with patch.object(Redis, "parse_response") as parse_response:
parse_response.side_effect = TimeoutError()
retries = 3
r = _get_client(Redis,
request,
retry_on_timeout=True,
retry=Retry(NoBackoff(), retries))
with pytest.raises(TimeoutError):
try:
r.get("foo")
finally:
assert parse_response.call_count == retries + 1
def test_client_retry_on_error_different_error_raised(self, request):
with patch.object(Redis, "parse_response") as parse_response:
parse_response.side_effect = TimeoutError()
retries = 3
r = _get_client(
Redis,
request,
retry_on_error=[ReadOnlyError],
retry=Retry(NoBackoff(), retries),
)
with pytest.raises(TimeoutError):
try:
r.get("foo")
finally:
assert parse_response.call_count == 1
def test_retry_connect_on_timeout_error(self):
"""Test that the _connect function is retried in case of a timeout"""
conn = Connection(retry_on_timeout=True, retry=Retry(NoBackoff(), 3))
origin_connect = conn._connect
conn._connect = mock.Mock()
def mock_connect():
# connect only on the last retry
if conn._connect.call_count <= 2:
raise socket.timeout
else:
return origin_connect()
conn._connect.side_effect = mock_connect
conn.connect()
assert conn._connect.call_count == 3
self.clear(conn)
def _gen_cluster_mock_resp(r, response):
connection = Mock()
connection.retry = Retry(NoBackoff(), 0)
connection.read_response.return_value = response
r.connection = connection
return r
def test_retry_on_error_retry(self, Class, retries):
c = Class(retry_on_error=[ReadOnlyError],
retry=Retry(NoBackoff(), retries))
assert c.retry_on_error == [ReadOnlyError]
assert isinstance(c.retry, Retry)
assert c.retry._retries == retries
def __init__(self, client):
self.client = client
self._sock = self._socket()
self.pid = 1234
self.retry = Retry(NoBackoff(), 0)