May 2018
Intermediate to advanced
492 pages
12h 3m
English
Content preview from Node.js Web Development - Fourth Edition
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Frontend headless browser testing with Puppeteer
A big cost area in testing is manual user interface testing. Therefore, a wide range of tools have been developed to automate running tests at the HTTP level. Selenium is a popular tool implemented in Java, for example. In the Node.js world, we have a few interesting choices. The chai-http plugin to Chai would let us interact at the HTTP level with the Notes application, while staying within the now-familiar Chai environment.
However, for this section, we'll use Puppeteer (https://github.com/GoogleChrome/puppeteer). This tool is a high-level Node.js module to control a headless Chrome or Chromium browser, using the DevTools protocol. That protocol allows tools to instrument, inspect, debug, ...
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