Snyk

Cypress is a next generation front end testing tool built for the modern web.

Cypress is most often compared to Selenium; however Cypress is both fundamentally and architecturally different. Cypress is not constrained by the same restrictions as Selenium.

Cypress enables you to write all types of tests:

• End-to-end tests
• Integration tests
• Unit tests

Cypress can test anything that runs in a browser.

Cypress comes fully baked, batteries included. Here is a list of things it can do that no other testing framework can:

• Time Travel: Cypress takes snapshots as your tests run. Hover over commands in the Command Log to see exactly what happened at each step.
• Debuggability: Stop guessing why your tests are failing. Debug directly from familiar tools like Developer Tools. Our readable errors and stack traces make debugging lightning fast.
• Automatic Waiting: Never add waits or sleeps to your tests. Cypress automatically waits for commands and assertions before moving on. No more async hell.
• Spies, Stubs, and Clocks: Verify and control the behavior of functions, server responses, or timers. The same functionality you love from unit testing is right at your fingertips.
• Network Traffic Control: Easily control, stub, and test edge cases without involving your server. You can stub network traffic however you like.
• Consistent Results: Our architecture doesn’t use Selenium or WebDriver. Say hello to fast, consistent and reliable tests that are flake-free.
• 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.

https://www.cypress.io/

Artillery is a modern, powerful & easy-to-use performance testing toolkit. Use it to ship scalable applications that stay performant & resilient under high load.

Artillery prioritizes developer productivity and happiness, and follows the "batteries-included" philosophy.

Artillery is designed for testing backend systems, such as API services, ecommerce backends, chat systems, game backends, databases, message brokers and queues, and anything else that can be communicated with over a network.

It can be used to test any backend regardless of what protocol it speaks or what language it's written in. Artillery supports HTTP, WebSocket, and Socket.io out of the box, and many additional protocols such as HLS, Kinesis, and Kafka via plugins. Support for additional protocols can be added via Artillery's plugin interface.

Artillery can be used to run Playwright-based scripts with artillery-engine-playwright. This is an early experimental feature, but it can be used for load testing or synthetic testing against deployed applications (in production or staging).

For E2E testing of web apps in development, Cypress.io is recommended.

https://www.artillery.io/

Cucumber reads executable specifications written in plain text and validates that the software does what those specifications say. The specifications consists of multiple examples, or scenarios. For example:

Scenario: Breaker guesses a word
  Given the Maker has chosen a word
  When the Breaker makes a guess
  Then the Maker is asked to score

Each scenario is a list of steps for Cucumber to work through. Cucumber verifies that the software conforms with the specification and generates a report indicating ✅ success or ❌ failure for each scenario.

In order for Cucumber to understand the scenarios, they must follow some basic syntax rules, called Gherkin.

Gherkin is a set of grammar rules that makes plain text structured enough for Cucumber to understand. The scenario above is written in Gherkin.

Gherkin serves multiple purposes:

• Unambiguous executable specification
• Automated testing using Cucumber
• Document how the system actually behaves

https://cucumber.io/tools/cucumber-open/

Gatling is a highly capable load testing tool. It is designed for ease of use, maintainability and high performance.

Out of the box, Gatling comes with excellent support of the HTTP protocol that makes it a tool of choice for load testing any HTTP server. As the core engine is actually protocol agnostic, it is perfectly possible to implement support for other protocols. For example, Gatling currently also ships JMS support.

https://gatling.io/

The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.

Apache JMeter may be used to test performance both on static and dynamic resources, Web dynamic applications.

It can be used to simulate a heavy load on a server, group of servers, network or object to test its strength or to analyze overall performance under different load types.

https://jmeter.apache.org/

Selenium is an umbrella project for a range of tools and libraries that enable and support the automation of web browsers.

It provides extensions to emulate user interaction with browsers, a distribution server for scaling browser allocation, and the infrastructure for implementations of the W3C WebDriver specification that lets you write interchangeable code for all major web browsers.

https://www.selenium.dev/

SonarQube® is an automatic code review tool to detect bugs, vulnerabilities, and code smells in your code. It can integrate with your existing workflow to enable continuous code inspection across your project branches and pull requests.

https://www.sonarqube.org/