November 2019
Beginner to intermediate
406 pages
9h 21m
Chinese
Content preview from Java持续交付
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274
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第
11
章
功能性测试：正确和接受度
mock
stub
的一个进化版本，它可以根据不同的模式配置不同的值，或者在每次测试之前
重新配置。它可以保持某个状态，并且可以在测试后查询是否调用了指定的方法，
以及如何被调用。
虚拟化服务
类似于一个
mock
，但它是长期存在的，被托管在一个远程服务器上。虚拟化服务通
常可以在开发人员和测试人员之间共享。
这些替代在组件测试中替换实际依赖的时候，都很有用，但是由于它们各自的特点，
mock
通常是最常用的方式。
stub
有时过于简单，无法覆盖组件测试中的某些情况，而虚
拟化服务则增加了远程网络连接的延迟和不确定性。
stub
通常需要手动来实现，但是
mock
和虚拟化服务可以使用某些工具。
在组件测试方面，
最常见的测试工具是
WireMock
。
WireMock
可以通过以下几种方式来实现
mock
或虚拟
化服务。
用
WireMock
来实现一个
mock
你可以在测试中随时启动和配置一个
WireMock
实例，在
ShopfrontApplicationCT
中你可以找到一个很好的示例，其中使用
WireMock
（
http://wiremock.org/
）来替代
Shopfront
依赖的外部服务。
用
WireMock
实现一个虚拟化服务
配置完成后，
WireMock
可以作为独立的服务启动，并部署到某个服务器中，使其
永久提供服务。或者你还可以选择
MockLab
（
https://get.mocklab.io/
），它是一个基
于
WireMock
的云服务，允许在云上创建虚拟化服务。
无论你选择哪种方式，在编写组件测试时要重点考虑的是，让它们独立于组件依赖的实 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.