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Description

Cypress is a modern web front-end testing tool built with JavaScript Mocha. Cypress testing operates directly on the browsers without the need for Selenium.

Support and updates

  • Cypress has 39428 stars, 2451 forks.
  • It has 19 major releases in the past 6 months.
  • It has 5 commits and there are 54 open pull requests.
  • It has 2675 open issues and 8122 have been closed.

Code statistics

  • Cypress has 1179 methods.

Blogs

Check out the latest blogs from LambdaTest on this topic:

Selenium Tutorial: Basics and Getting Started

Selenium is still the most influential and well-developed framework for web automation testing. Being one of the best automation frameworks with constantly evolving features, it is poised to lead the industry in all aspects as compared to other trending frameworks like Cypress, Puppeteer, PlayWright, etc. Furthermore, using Selenium gives you the flexibility to use different programming languages like C#, Ruby, Perl, Java, Python, etc., and also accommodate different operating systems and web browsers for Selenium automation testing.

Complete Automation Testing – Is It Feasible?

It is a fact that software testing is time and resources consuming. Testing the software can be observed from different perspectives. It can be divided based on what we are testing. For example, each deliverable in the project, like the requirements, design, code, documents, user interface, etc., should be tested. Moreover, we may test the code based on the user and functional requirements or specifications, i.e., black-box testing. At this level, we are testing the code as a black box to ensure that all services expected from the program exist, work as expected, and with no problem. We may also need to test the structure of the code, i.e., white box testing. Testing can also be divided based on the sub-stages or activities in testing, for instance, test case generation and design, test case execution and verification, building the testing database, etc. Testing ensures that the developed software is, ultimately, error-free. However, no process can guarantee that the developed software is 100% error-free.

The Top 52 Selenium Open Source Projects On GitHub

Selenium, a project hosted by the Apache Software Foundation, is an umbrella open-source project comprising a variety of tools and libraries for test automation. Selenium automation framework enables QA engineers to perform automated web application testing using popular programming languages like Python, Java, JavaScript, C#, Ruby, and PHP.

How To Automate Login Page Using Selenium WebDriver?

Selenium has always been the most preferred test automation framework for testing web applications. This open-source framework supports popular programming languages (e.g. Java, JavaScript, Python, C#, etc.), browsers, and operating systems. It can also be integrated with other test automation frameworks like JUnit, TestNG, PyTest, PyUnit, amongst others. As per the State of open source testing survey, Selenium is still the king for web automation testing, with 81% of organizations preferring it over other frameworks.

How To Automate Using TestNG In Selenium? [TestNG Tutorial]

Automation testing is a fast-growing industry, and every tester tends to opt for tools and frameworks that are self-sufficient and offer useful features out of the box. Though there are a number of test automation frameworks like Selenium, Cypress, etc; I still prefer using Selenium.

Cypress Tutorial

Cypress is a renowned Javascript-based open-source, easy-to-use end-to-end testing framework primarily used for testing web applications. Cypress is a relatively new player in the automation testing space and has been gaining much traction lately, as evidenced by the number of Forks (2.7K) and Stars (42.1K) for the project. LambdaTest’s Cypress Tutorial covers step-by-step guides that will help you learn from the basics till you run automation tests on LambdaTest.

Chapters:

  1. What is Cypress? -
  2. Why Cypress? - Learn why Cypress might be a good choice for testing your web applications.
  3. Features of Cypress Testing - Learn about features that make Cypress a powerful and flexible tool for testing web applications.
  4. Cypress Drawbacks - Although Cypress has many strengths, it has a few limitations that you should be aware of.
  5. Cypress Architecture - Learn more about Cypress architecture and how it is designed to be run directly in the browser, i.e., it does not have any additional servers.
  6. Browsers Supported by Cypress - Cypress is built on top of the Electron browser, supporting all modern web browsers. Learn browsers that support Cypress.
  7. Selenium vs Cypress: A Detailed Comparison - Compare and explore some key differences in terms of their design and features.
  8. Cypress Learning: Best Practices - Take a deep dive into some of the best practices you should use to avoid anti-patterns in your automation tests.
  9. How To Run Cypress Tests on LambdaTest? - Set up a LambdaTest account, and now you are all set to learn how to run Cypress tests.

Certification

You can elevate your expertise with end-to-end testing using the Cypress automation framework and stay one step ahead in your career by earning a Cypress certification. Check out our Cypress 101 Certification.

YouTube

Watch this 3 hours of complete tutorial to learn the basics of Cypress and various Cypress commands with the Cypress testing at LambdaTest.

License

Cypress is lincensed under the MIT License

LambdaTest Community Discussions

StackOverFlow community discussions

Questions
Discussion

Gather results from multiple cypress promisses

How to iterate over and test different child elements within an element in cypress?

Cypress - Visit a URL obtained from a 3rd party(email)

How can I get Cypress to run a specific folder of tests by specifying it as a project?

What is the best way of writing a test for testing a multilingual website?

The drop down element is not locating

Break for loop inside promise Then in Cypress Typescript

wait() cannot find previously triggered alias route

Testing D3.js drag events with Cypress.js

How to test Slate JS behavior in Cypress

EDIT 2: This solution was written for Cypress ~3.6.0 or thereabouts so it's possible that newer versions of Cypress work very differently internally, even if you fix some superficial incompatibilities of this code.

EDIT: often someone suggests using Promise.all, which is not a correct solution. Cypress chainer objects aren't Promises/A+-compatible, they simply appear to be promises because they implement .then interface. That's why Promise.all is able to consume an array of chainer objects, but that's it. The resolution values passed to Promise.all().then callback is not going to be what you expect (see https://github.com/cypress-io/cypress/issues/915).

You can use a helper I've suggested in a similar answer:

// put this in cypress/support/index.js

const chainStart = Symbol();
cy.all = function ( ...commands ) {
    const _           = Cypress._;
    const chain       = cy.wrap(null, { log: false });
    const stopCommand = _.find( cy.queue.commands, {
        attributes: { chainerId: chain.chainerId }
    });
    const startCommand = _.find( cy.queue.commands, {
        attributes: { chainerId: commands[0].chainerId }
    });
    const p = chain.then(() => {
        return _( commands )
            .map( cmd => {
                return cmd[chainStart]
                    ? cmd[chainStart].attributes
                    : _.find( cy.queue.commands, {
                        attributes: { chainerId: cmd.chainerId }
                    }).attributes;
            })
            .concat(stopCommand.attributes)
            .slice(1)
            .flatMap( cmd => {
                return cmd.prev.get('subject');
            })
            .value();
    });
    p[chainStart] = startCommand;
    return p;
}

usage:

it('test', () => {
    const urls = [
        'https://en.wikipediaaa.org',
        'https://en.wikipedia.org'
    ];

    cy.all(
        ...urls.map(url => cy.request(url))
    ).then(responses => {
        responses.forEach( resp => {
            expect(resp.status).to.eq(200);
        });
    });
});

That being said, you can also do this:

const urls = [
    'https://en.wikipediaaa.org',
    'https://en.wikipedia.org'
];

let passes = 0;

urls.forEach( url => {
    cy.request(url).then( resp => {
        if ( resp.status === 200 ) passes++;
    });
});

cy.then(() => {
    expect(passes).to.eq(urls.length);
});

The cy.all helper atop is really useful if you want to access the results without having to keep around globals and accessing them from a cy.then() callback --- but like I've shown in the last example, everything can be worked around using just vanilla cypress.

Or, if you don't need responses at all, you can simply do:

const urls = [
    'https://en.wikipediaaa.org',
    'https://en.wikipedia.org'
];
urls.forEach( url => {
    cy.request(url).its('status').should('eq', 200);
});
https://stackoverflow.com/questions/58285668/gather-results-from-multiple-cypress-promisses

Test case code snippets

General webpage functionality - Test page text justification

Description:

Page text should be left-justified.

API Testing - Check locale-based representation

Description:

Verify that the API response contains the correct resource representation based on the specified locale (e.g. en-US, fr-FR).

API Testing - Check CORS preflight

Description:

Verify that the API correctly handles CORS preflight requests and returns the correct HTTP status code and error message.

General webpage functionality - Test broken links check

Description:

Check all pages for broken links.

Downloads

Cypress can be downloaded from it’s GitHub repository - https://github.com/cypress-io/cypress

Method index

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