
Code Coverage Is a Vanity Metric: Why Chasing 100% Is a Waste of Time
Ever sat in a meeting where someone triumphantly announced: “We’ve achieved 87% code coverage!”? Everyone nods approvingly, as if they just landed a rocket on Mars. Meanwhile, in the codebase, a bug that could have been caught by a proper test just slipped into production. Welcome to the paradox of code coverage—the metric that makes you feel productive while your software quietly falls apart. Let me be brutally honest: code coverage as a target is a vanity metric, and chasing it is one of the fastest ways to sabotage your codebase while maintaining the illusion of quality....



