Craig Taub • 6/8/2020

Under-the-hood of test runners (e.g Mocha)

This article provides a detailed, behind-the-scenes explanation of how JavaScript test runners like Mocha function. Written by a MochaJS core team member, it breaks down the core components—tests, suites, hooks, and reporters—and walks through the parsing and execution phases of a simplified test runner built from Mocha's actual codebase.

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#JavaScript #Node.js #unit testing