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#!/usr/bin/env python
import pytest
from confluent_kafka import Producer, KafkaError, KafkaException
import time
seen_all_brokers_down = False
def error_cb(err):
print('error_cb', err)
assert err.fatal() is False
if err.code() == KafkaError._ALL_BROKERS_DOWN:
global seen_all_brokers_down
seen_all_brokers_down = True
def test_error_cb():
""" Test the error callback. """
global seen_all_brokers_down
# Configure an invalid broker and make sure the ALL_BROKERS_DOWN
# error is seen in the error callback.
p = Producer({'bootstrap.servers': '127.0.0.1:1', 'socket.timeout.ms': 10,
'error_cb': error_cb})
t_end = time.time() + 5
while not seen_all_brokers_down and time.time() < t_end:
p.poll(1)
assert seen_all_brokers_down
def test_fatal():
""" Test fatal exceptions """
# Configure an invalid broker and make sure the ALL_BROKERS_DOWN
# error is seen in the error callback.
p = Producer({'error_cb': error_cb})
with pytest.raises(KafkaException) as exc:
raise KafkaException(KafkaError(KafkaError.MEMBER_ID_REQUIRED,
fatal=True))
err = exc.value.args[0]
assert isinstance(err, KafkaError)
assert err.fatal()
assert not err.retriable()
assert not err.txn_requires_abort()
p.poll(0) # Need some p use to avoid flake8 unused warning
def test_retriable():
""" Test retriable exceptions """
with pytest.raises(KafkaException) as exc:
raise KafkaException(KafkaError(KafkaError.MEMBER_ID_REQUIRED,
retriable=True))
err = exc.value.args[0]
assert isinstance(err, KafkaError)
assert not err.fatal()
assert err.retriable()
assert not err.txn_requires_abort()
def test_abortable():
""" Test abortable exceptions """
with pytest.raises(KafkaException) as exc:
raise KafkaException(KafkaError(KafkaError.MEMBER_ID_REQUIRED,
txn_requires_abort=True))
err = exc.value.args[0]
assert isinstance(err, KafkaError)
assert not err.fatal()
assert not err.retriable()
assert err.txn_requires_abort()
def test_subclassing():
class MyExc(KafkaException):
def a_method(self):
return "yes"
err = MyExc()
assert err.a_method() == "yes"
assert isinstance(err, KafkaException)
def test_kafkaError_custom_msg():
err = KafkaError(KafkaError._ALL_BROKERS_DOWN, "Mayday!")
assert err == KafkaError._ALL_BROKERS_DOWN
assert err.str() == "Mayday!"
assert not err.fatal()
assert not err.fatal()
assert not err.retriable()
assert not err.txn_requires_abort()
def test_kafkaError_unknonw_error():
with pytest.raises(KafkaException, match="Err-12345?") as e:
raise KafkaError(12345)
assert not e.value.args[0].fatal()
assert not e.value.args[0].retriable()
assert not e.value.args[0].txn_requires_abort()
def test_kafkaException_unknown_KafkaError_with_subclass():
class MyException(KafkaException):
def __init__(self, error_code):
super(MyException, self).__init__(KafkaError(error_code))
with pytest.raises(KafkaException, match="Err-12345?") as e:
raise MyException(12345)
assert not e.value.args[0].fatal()
assert not e.value.args[0].fatal()
assert not e.value.args[0].retriable()
assert not e.value.args[0].txn_requires_abort()
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