There are a handful of modules in NPM that can help us out when testing our applications, but in the next few lines we are going to focus on some of the most used ones:
Mocha: This is a popular test framework for Node and for the browser created by the author of Express, TJ Holowaychukshould.js: This is an assertion library, which is framework agnosticsinon: This is a library that provides spies, stubs, and mocks, and it works in Node and the browsersupertest: This is a high-level abstraction module for testing Node HTTP servers with a fluent APIproxyquire: This is a simple library for mocking the required dependencies
Mocha is one of the most feature-rich JavaScript testing frameworks. It has features such as multiple interfaces (such as behavior-driven development or test-driven development), multiple reporters, and runs asynchronous tests and specifies timeouts (for different levels). For more details, you can find the full documentation of the project page at...