Cypress — NextGen Javascript Automation Testing Framework

Photo by Alex Knight on Unsplash

Why Cypress?

Cypress is a next generation front end testing tool built for the modern web.It aims to address the pain points developers or QA engineers face while testing an application.

Cypress is a more developer-friendly tool that uses a unique DOM manipulation technique and operates directly in the browser. Cypress also provides a unique interactive test runner in which it executes all commands.

Cypress empower testers with the ability to perform Test-Driven Development (TDD) with complete end to end testing. Cypress is developed with the intent to make development and testing a parallel process.

Architecture — What makes Cypress unique

Most testing tools (like Selenium) operate by running outside of the browser and executing remote commands across the network. Cypress is the exact opposite. Cypress is executed in the same run loop as your application.

Behind Cypress is a Node server process. Cypress and the Node process constantly communicate, synchronize, and perform tasks on behalf of each other. Having access to both parts (front and back) gives us the ability to respond to your application’s events in real time.

Cypress also operates at the network layer by reading and altering web traffic on the fly. Cypress ultimately controls the entire automation process from top to bottom, which puts it in the unique position of being able to understand everything happening in and outside of the browser.

Features

Time Travel: Cypress takes snapshots as your tests run. Hover over commands in the Command Log to see exactly what happened at each step.

Automatic Waiting: Never add waits or sleeps to your tests. Cypress automatically waits for commands and assertions before moving on. No more async hell.

From Unit/Integration to End to End Test and can test both UI and API Test.

Native Access: We can access Objects, Window, DOM Elements, Local Storage, Web Application Functions from all our Test Code.

Network Traffic Control: Easily control, stub, and test edge cases without involving your server. You can stub network traffic however you like.

Screenshots and Videos: View screenshots taken automatically on failure, or videos of your entire test suite when run from the CLI.

Cross browser Testing: Run tests within Firefox and Chrome-family browsers (including Edge and Electron) locally and optimally in a Continuous Integration pipeline.

Realtime Reloads: Cypress monitor the changes and automatically reload/re-runs the tests (Hot reloading).

Refrences:

*https://docs.cypress.io/ https://www.browserstack.com/guide/cypress-vs-selenium*

*https://www.neovasolutions.com/2020/04/20/cypress-io-the-future-of-test-automation-tool-for-both-developers-and-qa/*

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