优雅地停止 Waitress Web 服务器

Question

我正在后台线程中启动 Waitress Web 服务器以进行运行功能测试。如何在测试运行结束时以干净（ish）的方式清理并退出女服务员？ public 女服务员 API 只给出一种入口点，期望 KeyboardInterrupt 作为退出信号。

目前我只是运行守护线程中的服务器，所有新的 Web 服务器都在等待清理，直到测试运行ner 退出。

我的测试网络服务器代码：

"""py.test fixtures for spinning up a WSGI server for functional test run."""

import threading
import time
from pyramid.router import Router
from waitress import serve
from urllib.parse import urlparse

import pytest

from backports import typing

#: The URL where WSGI server is run from where Selenium browser loads the pages
HOST_BASE = "http://localhost:8521"


class ServerThread(threading.Thread):
    """Run WSGI server on a background thread.

    This thread starts a web server for a given WSGI application. Then the Selenium WebDriver can connect to this web server, like to any web server, for running functional tests.
    """

    def __init__(self, app:Router, hostbase:str=HOST_BASE):
        threading.Thread.__init__(self)
        self.app = app
        self.srv = None
        self.daemon = True
        self.hostbase = hostbase

    def run(self):
        """Start WSGI server on a background to listen to incoming."""
        parts = urlparse(self.hostbase)
        domain, port = parts.netloc.split(":")

        try:
            # TODO: replace this with create_server call, so we can quit this later
            serve(self.app, host='127.0.0.1', port=int(port))
        except Exception as e:
            # We are a background thread so we have problems to interrupt tests in the case of error. Try spit out something to the console.
            import traceback
            traceback.print_exc()

    def quit(self):
        """Stop test webserver."""

        # waitress has no quit

        # if self.srv:
        #    self.srv.shutdown()

Answer 1

Webtest 提供了一个名为 StopableWSGIServer 的 WSGI 服务器，它在一个单独的线程中启动，然后在您完成运行测试后可以 shutdown()。

查看：https://docs.pylonsproject.org/projects/webtest/en/latest/api.html#module-webtest.http

根据文档，它是专门为与 casperjs 或 selenium 一起使用而构建的。

优雅地停止 Waitress Web 服务器

Gracefully stopping Waitress web server

pyramid

waitress