Whether it is a startup or large-scale business, every company is striving to incorporate automation testing to speed up their product release cycles. When done right, automation can be a fantastic tool for your software testing toolkit. It can help you execute thousands of tests in a single click. That too, without any human error margins.
Why unit testing is important?
It is a process of testing the code at the module level and ensuring that the developed modules meet the specified project requirements. The unit tests are written for every module and after completion of every module, the entire test case suite is run to ensure consistent testing results. These tests are extremely crucial as they ensure the responsiveness and usability of the application. The frontend unit tests run on browsers while the backend unit testing framework focuses on business logic and service endpoints.
- Standardized – Standard API (Application Programming Interface) to ensure the interoperability with multiple browsers, but it can lack browser-specific features support.
- Non-standardized – It utilizes browser-specific protocols for a more efficient and feature-rich experience.
- Proprietary – It uses a custom mechanism for browser interaction to ensure a feature-rich and efficient browsing experience. This test framework can have quirky limitations and is more complex.
Types of testing tools
The type of testing tools is categorized according to their functionalities. To ensure the best testing results, it is recommended to use a combination of multiple tools.
- Test launchers to launch the test in the browsers (Cypress, Jasmine, Karma, Jest, WebDriver)
- Testing structure providers to arrange the tests in a scalable and readable manner (Jasmine, TestCafe, Jest, Cypress, Cucumber)
- Generation and display of test summary (Karma, Jasmine, TestCafe, Jasmine, Cypress, Mocha)
- Assertion functionality to verify if the test returns according to the expectations or it throws an exception (TestCafe, Jasmine, Chain. Cypress, Unexpected)
- Mocks to simulate multiple test scenarios and isolate the tested unit of application from other parts, and link to processes to see if it works as expected (Jasmine, testdouble, Jest, enzyme)
- Generation and comparison of snapshots to ensure data structure changes from previously conducted test runs are intended by the code changes of the user (Ava, Jest)
- Browser controllers to simulate the actions of the users for functional testing (Puppeteer, Nightwatch, Cypress, TestCafe, Phantom)
- Tools for visual regression that are used to compare the site to its earlier visual versions by using the techniques of image comparison (Percy, Applitools, WebDriver)
- Generation of code coverage reports understanding the coverage of tests by the code (Blanket, Jest)
Seleniumn WebDriver is one of the most popular open-source frameworks for testing automation. The core strengths of this tool are that it is highly robust, versatile, and can be used with multiple browsers. Besides this, it also has a vast user community that helps in easily finding the answers to your problems over the internet. Moreover, it does not require extensive knowledge to set it up.
- Large user community
- Multiple browser support
- Highly configurable
- Need a lot of setup time
- Not as fast as other testing frameworks
- Steep learning curve
- Convenient runner
- Easy to set up
- Lacks some useful functionalities
- Limited support of Firefox and Chromium-based browsers
- Need to make payment to unlock the full version
With Puppeteer, you can easily mock resources and thereby, avoid the issues of reliability, speed, and consistency. You can also manipulate external resources like CSS to execute the tests faster. The major drawback of this tool is that it works only with Chrome and if your application demands cross-browser compatibility, you will have to test the application with other testing frameworks.
Karma was developed to bring a full-fledged testing environment where they do not have to worry about configuration. They can instantly write code and receive feedback quickly from the test cases.
- Extremely versatile
- Easy to write and read tests
- Structured documentation
- Small user community
- Limited to the syntax level
NightwatchJS framework got serious attention when E2E testing was introduced. At that time, the clean syntax and easy setup were the main benefits. Today, the installation is very easy and quick in Nightwatch, but the documentation does not include all the necessary information. It uses Selenium Webdriver to access all browsers without any hassles. This testing framework provides all the necessary functionality but at an average level.
- Quick and easy setup
- Multiple browsers support
- Low documentation quality
- Slow performance
The easy setup is one of the main reasons for the popularity of the Mocha framework. Many organizations have switched to Jest as it makes testing significantly faster with little configuration requirements. Although Mocha offers a wide ecosystem, the complexity of the framework is on the higher side.
The testing tool offers extensive support of multiple browsers, including different mobile versions, and works out-of-the-box. It works with the Smart Assertion Query mechanism, which automatically waits for changes to be implemented and retries with regular checkups. The drawback of this testing framework is that you need to consider JS asynchronicity and syntax while Cypress allows you to write synchronous code.
- Easy to set up
- Automatic wait time
- Support of multiple browsers without Selenium support
- Expensive full version
The major benefit of Jasmine is its extended compatibility across multiple frameworks, which makes it one of the flexible testing frameworks. It also has a large user community to offer support in the form of video tutorials, libraries, and blog posts. With the large community, the learning curve of Jasmine is also quite smooth. The cherry on the top is its effective documentation. The drawback of this framework is that it requires a lengthy configuration procedure.
Now when you know the pros and cons of popular testing tools, you choose the tool according to your project requirements. From the browser automation frameworks, we looked at, you can choose from Puppeteer and Selenium WebDriver. And if you are looking for a one-stop testing solution, Cypress is the best choice.
- What type of configurations and apps requires support? Frameworks like WebDriver are the most extensible framework.
- How mature and robust framework is required? Frameworks like TestCafe, Puppeteer, and WebDriver are well-tried and tested.
- Do you need to conduct testing for desktop as well as mobile? Frameworks like WebDriver support both types of apps.
- Do you need a framework to manage front-end and back-end testing? Cypress is the best framework for front and back-end testing.
- How easy and quick do you want to configure and run tests? Frameworks like Playwright and Puppeteer require extensive configuration.
All you need to do is pick the best option and get started. To learn more about application and user interface testing solutions, get a free consultation with QAonCloud today.