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Chai is an assertion library for Node.js and browser-based JavaScript applications. It functions as both a behavior-driven development and test-driven development framework, providing a system to verify code outputs, application state, and general logic. The project is an extensible validation engine that uses a plugin-based system to allow the registration of custom assertions and specialized data checks. It supports multiple modular assertion styles to accommodate different validation philosophies. The library covers a broad range of data validation capabilities, including the inspection o
Istanbul is a JavaScript code coverage tool and instrumentation engine that measures the execution of statements, lines, functions, and branches. It functions as a test coverage analysis tool capable of monitoring code across unit, functional, and browser tests to identify untested areas of a codebase. The project distinguishes itself through a transparent instrumentation engine that uses module loader hooks to inject tracking code without requiring manual source modifications. It supports distributed test reporting by aggregating fragmented coverage data from multiple concurrent processes in
Minimalistic BDD-style assertions for Node.JS and the browser.
Sinon is a JavaScript test double library and mocking framework used to isolate code and verify behavior during unit testing. It provides a collection of spies, stubs, and mocks that replace real function implementations and object methods with controlled substitutes. The project includes a specialized fake timer library for overriding the system clock, allowing the simulation of time progression to trigger timeouts and intervals without waiting for real-time delays. It also features a test sandbox mechanism to group multiple fakes together, ensuring the original state is restored between tes
blanket.js is a simple code coverage library for javascript. Designed to be easy to install and use, for both browser and nodejs.
The main features of alex-seville/blanket are: Assertions and Coverage, Testing Frameworks.
Projects with overlapping indexed features include: gotwarlost/istanbul — Istanbul is a JavaScript code coverage tool and instrumentation engine that measures the execution of statements,… thlorenz/proxyquire — 🔮 Proxies nodejs require in order to allow overriding dependencies during testing. automattic/expect.js — Minimalistic BDD-style assertions for Node.JS and the browser. chaijs/chai — Chai is an assertion library for Node.js and browser-based JavaScript applications. It functions as both a… sinonjs/sinon — Sinon is a JavaScript test double library and mocking framework used to isolate code and verify behavior during unit… tntim96/jscover — JSCover is a JavaScript Code Coverage Tool that measures line, branch and function coverage.