To make a request, we will use the Request package. According to the State of JS 2020 survey, Mocha’s popularity has been consistent among the top JavaScript testing frameworks over the past few years. It supports various types of testing such as unit, integration, and end-to-end testing. Note that in a bigger test suite, it is probably easier and nicer to put the host part of the URLs in a global constant, and reuse it in all tests. Mocha is another top JavaScript testing framework that is designed for testing apps running in Node.js. Next, we will update the test command in package.json to contain the above command. You can explore other reporters on Mocha’s official website. Note that we have many different report formats to choose from. node_modules directory: $ npx mocha -reporter spec The following command is used to invoke the Mocha binary installed locally in the. We will set up the test command inside the package.json file, in order to run our tests simply by executing npm test from the command line. However, we will configure one more thing to make running the test suite easier. Install it as follows: $ npm install -save requestįinally, we will also need the Express package that defines a simple DSL (domain-specific language) for routing and handling incoming HTTP requests: $ npm install -save expressĪt this point, we are finished with the bootstrap process. Note that we are using the -save option to automatically save these dependencies in our package.json file.ĭuring the server testing phase, we will need a way to send HTTP requests. Next, we will install our testing framework, and an expectation library called Chai that serves as a nice replacement for Node’s standard assert function. test script design using Test Caf or any java script-based automation tool. Our project’s structure will contain an app directory that with the main code, and a test directory with the Mocha test files: $ mkdir app Technology & Engineering jobs at Cognizant Professionals Careers. "test": "echo \"Error: no test specified\" & exit 1" Npm’s init command-line option will launch a wizard, which creates a package.json for our project.įor the purpose of this tutorial, answer its questions as follows: $ npm init Node’s official package manager - npm - will help us set up an empty project. We will start by creating an empty directory. In addition, we will create a web server that exposes the above converter and demonstrates how to test asynchronous code. This article will walk you through its installation and configuration, as well as demonstrate its usage by implementing a color converter that can translate from RGB (red, green, blue) to hexadecimal color representation. It’s used for unit and integration testing, and it’s a great candidate for BDD (Behavior Driven Development). Mocha is a testing library for Node.js, created to be a simple, extensible, and fast. Comfortable using Test frameworks like Jasmine, QUnit, Hero, Nightwatch.js, Moca, Chai, Galen, Casper.js, Phantom.js - Able to comprehend business logic.
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