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Testing the Untestable

by Richard Schneeman

Published November 21, 2016 in Programming

Given in 2014. Good tests are isolated, they’re repeatable, they’re deterministic. Good tests don’t touch the network and are flexible when it comes to change. Bad tests are all of the above and more. Bad tests are no tests at all: which is where I found myself with a 5 year legacy codebase running in production and touching millions of customers with minimal use-case documentation. We’ll cover this experience and several like it while digging into how to go from zero to total test coverage as painlessly as possible. You will learn how to stay sane in the face of insane testing conditions, and how to use these tests to deconstruct a monolith app. When life gives you a big ball of mud, write a big ball of tests

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