# Introduction
UITest is a test framework that make your code runs in the browser. It is mainly for browsers and is a member of the Macaca ecosystem.
UITest mainly solves unit test scenarios that require the real environment of the Chromium, such as running JavaScript in V8, verifying whether the rendering is successful in the rendering engine, providing screenshots, coverage, and the corresponding server CI solution. You can now easily test any JavaScript app in a real Chromium without hassling solution.