January 2017
Intermediate to advanced
34 pages
40m
English
Content preview from Service Virtualization
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Chapter 1. An Introduction to Service Virtualization
In this chapter, we learn what service virtualization is and how it relates to stubbing and mocking, two other simulation techniques that are used often by development teams to help them write and execute tests effectively.
What Is Service Virtualization?
Service virtualization is a method to emulate the behavior of specific components in heterogeneous component-based applications such as API-driven applications, cloud-based applications and service-oriented architectures. It is used to provide software development and testing teams access to dependent system components that are needed to exercise an application under test, but are unavailable or difficult to access for development and testing purposes.1
A lot of modern software, such as Application Programming Interface (API)–driven or Service-Oriented Architecture (SOA)–based applications, consists of a number of interconnected components. Software development teams that want to access these dependent components (dependencies) during development and testing often find that these dependencies are unavailable or difficult to access.
There are several reasons for this:
- The dependency has not yet been developed or is under development. This is often seen when several development teams work in parallel on different components of a single system.
- The dependency does not contain appropriate test data. When test environments need to be configured with complex test data structures, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.