Gio Lodi • 5/5/2015

Writing an Expecta custom matcher

This technical tutorial explains how to write custom matchers for the Expecta testing library in Objective-C. It covers the reasons for creating custom matchers (DRYness, readability, power), walks through the implementation steps using a practical example (a .beAFruit matcher), and details the prerequisite, match, and failure message blocks required for a functional matcher.

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#testing #Io #Objective C