无法停止测试，@events.test_stop.add_listener蝗虫

Question

如果失败百分比或平均响应时间超过testrongtop中定义的值，则无法停止测试。下面是示例代码:-

@events.test_stop.add_listener
def results(environment, **kw):
if environment.stats.total.fail_ratio > 0.01:
logging.error("Test failed due to failure ratio > 1%")
environment.process_exit_code = 1
elif environment.stats.total.avg_response_time > 2:
logging.error("Test failed due to average response time ratio > 200 ms")
environment.process_exit_code = 1
elif environment.stats.total.get_response_time_percentile(0.95) > 8:
logging.error("Test failed due to 95th percentil response time > 800 ms")
environment.process_exit_code = 1
else:
environment.process_exit_code = 0


@task
def osp_pick(self):
return super().request(
name="pick",
json_file="data/pick.json",
ssm=self.ssm,
my_task=self,

)

class StockTransfer(HttpUser):
host = "https://zz-zz.dev.zz.zz.zz.com"  # Change this
tasks = [Handler]

我使用下面的命令从终端运行测试:-

locust -f --headless -u 1000 -r 100 --run-time 2m

命令按预期工作，测试运行2分钟，但如果错误百分比为>测试不会失败;0.01或平均响应时间为>2秒

Answer 1

看看蝗虫插件的--check-fail-ratio，以获得经过战斗测试的方法来实现这一点:

https://github.com/SvenskaSpel/locust-plugins命令行选项或者，如果您想在实际测试期间运行check，并在失败时中断它，您可以使用背景greenlet:

def checker(environment):
while not environment.runner.state in [STATE_STOPPING, STATE_STOPPED, STATE_CLEANUP]:
time.sleep(1)
if environment.runner.stats.total.fail_ratio > 0.2:
logging.info(f"fail ratio was {environment.runner.stats.total.fail_ratio}, quitting")
environment.process_exit_code = 2
environment.runner.quit()
return

@events.init.add_listener
def on_locust_init(environment, **_kwargs):
if not isinstance(environment.runner, WorkerRunner):
gevent.spawn(checker, environment)