jest VS nightwatch

Jest y Cypress

Jest and React Testing Library are popular tools used to test React applications. These libraries provide tools for mocking dependencies, simulating user interactions, and asserting the expected behavior of our components.

Now, let's add a test to ensure our hooks are working as we expect them to and to alert us to any breaking changes in the code that might be introduced later. First, add the packages below so we can use jest in our project.

Jest is an all-in-one JavaScript testing framework with a focus on simplicity. It supports projects using Babel, TypeScript, Node.js, React, Angular, Vue, and more. To maximize performance, it runs tests in parallel on isolated processes. Jest comes with an integrated assertion engine based on the expect() function and requires zero configuration for most projects.

✅ Angular 18 ✅ Angular Material ✅ Unit Testing with Jest ✅ End-to-End Testing with Cypress ✅ Internationalization with Transloco ✅ Auto documentation with Compodoc ✅ Provide component examples with Storybook ✅ Analyse your project with source-map-explorer ✅ Docker ✅ ESLint ✅ Prettier ✅ Commit Linting ✅ AuditJS Audit this application using Sonatype OSS Index ✅ Auto-generate a CHANGELOG with auto-changelog

If you've ever done any type of testing with Node.js, you most likely have come up with libraries like Jest, Mocha or Vitest. This is because Node.js for a long time has never provided a native way to do testing. If you wanted some type of testing, you'd have to draw on testing libraries.

test: Run tests - if you're using Jest, it's just "test": "jest" or vitest for Vitest.

5. Automated Tests: Unit tests are automated tests that verify the behavior of a small unit of code in isolation. I like to write unit tests for every bug reported by a user. This way, I can reproduce the bug in a controlled environment and verify that the fix works as expected and that we wont see a regression. There are many different JavaScript test frameworks like Jest, cypress, mocha, and jasmine. We use Rspec and Minitest for unit and integration tests in our rails application.

Jest

Jest is a delightful JavaScript testing framework with a focus on simplicity.

Nightwatch which will prompt to create a boilerplate framework specifically for Mobile / TV apps.

6.NightwatchJS: NightwatchJS is a Node.js-based end-to-end testing framework. Key Features: Simplifies writing test scripts using a simple syntax. Supports parallel test execution. Integrates with Selenium WebDriver for cross-browser testing

NightWatchJS

I have shown you the examples of using selectors in the Google Chrome dev tools, but the idea is similar when you write your automation scripts. I will use the Nightwatch testing framework to write the following snippets which will navigate to some webpage, wait to ensure that an interactive element has appeared in the DOM, and finally click on it. If you want to learn using Javascript with Nightwatch framework for your automated tests, you can start with our guide to this.

The reason for this behavior is thoroughly explained in Understanding the Command Queue Nightwatch.js GitHub wiki (it is a long read but it’s worth it). In this section, we will not look in such detail, this is going to be a summary of sorts. By the way, this command queue example can be found in Loadero’s public GitHub examples repository here.

Nightwatch.js is a popular open-source, Selenium JavaScript-based test automation framework for automating browser-based web applications and websites. It is written in Node.js runtime and uses the W3C WebDriver API (formerly Selenium WebDriver) for interacting with various browsers to perform commands and assertions on DOM elements.

For Firefox-specific options (like command-line args and browser about:config prefs), the property to use is moz:firefoxOptions. That is shipping in the latest default nightwatch.conf.js file, as is the parallel goog:chromeOptions for chromedriver. But if you've got a legacy configuration file—like I did—you'll want to update the old chromeOptions property, too.

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