urequire-ab-specrunner enhances unit testing for projects utilizing urequire and A/B testing strategies. It provides a streamlined, browser-based environment to execute Mocha tests against different urequire configurations representing A/B test variants. This facilitates the verification of code behavior across various cohorts, ensuring consistent and reliable functionality regardless of which A/B test branch is active, ultimately improving application stability and user experience. It's ideal for maintaining code quality in A/B testing workflows.