如果我们想要随机构造人名、地名、天气、学校、颜色、职业,甚至符合某正则表达式的字符串等,肿么办?
作者:Christian Posta 译者:海松 原题:Low-risk Monolith to Microservice Evolution Part III 全文7900字,阅读约需要20分钟 在第一部分中,我们通过一个具体的示例,介绍了如何在不影响系统访问和业务价值的前提下将微服务引入架构。在第二部分中,我们列举了一些与上述架构战略及目标相一致的技术。在本文中,我们将继续第二部分的解决方案,重点讨论如何添加可能需要与单体架构共享数据(至少在初始阶段)的新服务,然后再引入一些更为复杂的部署场景。我们
看到巧用 CSS/SVG 实现复杂线条光效动画的文章,便也想尝试用WPF的Shape配合动画实现同样的效果。ChokCoco大佬的文章中介绍了基于SVG的线条动画效果和通过角向渐变配合 MASK 实现渐变线条两种方式。WPF中的Shape与SVG非常相似,因此这种方式也很容易实现。但WPF中仅有的两种渐变画刷不包含角向渐变,本文使用了另外两种方式实现同样的效果。
在日常的测试中,我们经常需要提前准备一大堆测试数据,用来验证业务逻辑。当然对于简单的数据类型完全可以通过 JDK 自带的 Random 类来实现。但是对于一个比较复杂的类,或者参数的格式有特殊要求的时候,Random 就不适用了,这个时候就需要借助一些能够生成测试数据的框架。
有了它们之后,你就可以和很多重复劳动说再见了。但是工具都是一把双刃剑,有利就有弊,自己可以权衡。
测试金字塔是对测试的分层描述,在不同层次做不同类型的测试。测试金字塔如何运用到工程实践,是一件困难的事情。原文作者是一位德国Thoughtworks的软件开发工程师,本文将回顾传统的测试金字塔,并结合实例,进行一次有深度的探秘实践。
hostapd is an IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator. This page is dedicated to the Linux documentation of it’s implementation and use. Please refer to the hostapd home page for information for other Operating Systems. As far a Linux is concerned, out of the old drivers you can only use these 3 drivers with hostapd: HostAP madwifi prism54 All new mac80211 based drivers that implement AP functionality are supported with hostapd’s nl80211 driver. The mac80211 subsystem moves all aspects of master mode into user space. It depends on hostapd to handle authenticating clients, setting encryption keys, establishing key rotation policy, and other aspects of the wireless infrastructure. Due to this, the old method of issuing ‘ iwconfig <wireless interface> mode master’ no longer works. Userspace programs like hostapd now use netlink (the nl80211 driver) to create a master mode interface for your traffic and a monitor mode interface for receiving and transmitting management frames. Getting hostapd Using your distributions hostapd It is advisable to try your distributions version of hostapd before taking the time to compile and install your own copy. This will make future maintenance easier as you’ll be able to use the init scripts shipped by the distro and hostapd will be updated by it as well. If your distribution ships 0.6.8 or later, you can test with this bare minimum config by creating the file hostapd-minimal.conf: #change wlan0 to your wireless device interface=wlan0 driver=nl80211 ssid=test channel=1 If that config errors out with something like: hostapd $ sudo hostapd ./hostapd-minimal.conf Configuration file: ./hostapd-minimal.conf Line 2: invalid/unknown driver ‘nl80211’ 1 errors found in configuration file ‘./hostapd-minimal.conf’ that means that your distro is not shipping hostapd with nl80211 driver support and you’ll need to follow the building instructions that follow. If it works, you can skip down to the configuring hostapd secti
“测试金字塔”是一个隐喻,它告诉我们将软件测试分成不同颗粒度的桶,也给出了我们应该在这些组中进行多少次测试的想法。尽管测试金字塔的概念已经存在了一段时间,但团队仍然很难正确地实施。本文重新探讨了测试金
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