May 2019
Intermediate to advanced
496 pages
10h 38m
English
Content preview from Mastering React Test-Driven Development
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Canary testing
Canary testing is when you release your software to a small proportion of your users and see what happens. It can be useful for web applications with a large user-base. One version of canary testing involves sending each request to two systems: the live system and the system under test. Users only sense the live system but the test system results are recorded and analyzed by you. Differences in functionality and performance can then be observed, while your users are never subjected to test software.
Canary testing is attractive because, on the surface, it seems very cost effective, and also requires next to no 'thinking' from the programmer.
Unlike TDD, canary testing cannot help you with the design of your software, and it ...
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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.