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Jest vs Sauce Labs: What are the differences?
- Test Framework: Jest is a popular JavaScript testing framework mainly used for unit and integration testing, while Sauce Labs provides a cloud-based platform for automated testing across various browsers and devices.
- Browser and Device Testing: Sauce Labs enables users to test their applications across a wide range of browsers, devices, and operating systems, allowing for comprehensive compatibility testing, whereas Jest is primarily focused on testing code logic and functionality within a development environment.
- Parallel Testing: Sauce Labs allows for parallel testing on multiple browser and device combinations simultaneously, which can significantly reduce testing time and improve efficiency, while Jest runs tests sequentially in the provided test suite.
- Integration with CI/CD: Sauce Labs seamlessly integrates with popular continuous integration and continuous deployment tools like Jenkins, Bamboo, and CircleCI, making it easy to incorporate automated testing into the software development lifecycle, whereas Jest offers integration with CI/CD tools but may require additional setup and configuration.
- Reporting and Analytics: Sauce Labs provides detailed reporting and analytics for test runs, including video recordings of test sessions and performance metrics, giving valuable insights into the behavior of applications under test, while Jest offers basic reporting capabilities that may require additional plugins or configurations for more advanced reporting features.
- Scalability and Infrastructure: Sauce Labs leverages cloud infrastructure to scale testing efforts based on demand, allowing users to run tests in parallel on a large scale, while Jest relies on the local development environment for testing and may have limitations in terms of scalability for large projects.
In Summary, the key differences between Jest and Sauce Labs lie in their focus on different aspects of testing, with Jest being more suitable for code logic testing within development environments, while Sauce Labs excels in providing a cloud-based platform for comprehensive automated testing across browsers and devices.
I am looking to purchase one of these tools for Mobile testing for my team. It should support Native, hybrid, and responsive app testing. It should also feature debugging, parallel execution, automation testing/easy integration with automation testing tools like Selenium, and the capability to provide availability of devices specifically for us to use at any time with good speed of performing all these activities.
I have already used Perfecto mobile, and Sauce Labs in my other projects before. I want to know how different or better is AWS Device farm in usage and how advantageous it would be for us to use it over other mentioned tools
A SaaS offering like Sauce Labs (or BrowserStack or LambdaTest, etc) will provide a remote Selenium/Appium Grid including the ability to run test automation in parallel (up to the amount based your subscription level) an a wide array of browsers and mobile devices.
These tools can be expensive, but if you can afford them, the expertise and effort of maintaining the grid, browser updates, etc. is worth it.
AWS Device Farm can be significantly cheaper, but is much more work to setup and run. It will not give you as many devices, or the reporting and screen/video capture you get with the the services. And there is no support for AWS Device Farm, and very poor documentation. I have used it, but do not recommend it. Running your own grid and physical device lab is better, but I'd stick with a service like Sauce Labs or Perfecto which will save you time and give you better services despite the higher price tag.
Stability - Just works. Availability - More than 15 datacenters. Enterprise features like SSO, local testing and SOC2/GDPR compliant.
BitBar's Dedicated Devices would be a great option for you. It allows you to dedicate (reserve) devices for your use only which also having access to all of the devices in the shared cloud. BitBar has the features and integrations that you are looking for as well.
As we all know testing is an important part of any application. To assist with our testing we are going to use both Cypress and Jest. We feel these tools complement each other and will help us get good coverage of our code. We will use Cypress for our end to end testing as we've found it quite user friendly. Jest will be used for our unit tests because we've seen how many larger companies use it with great success.
Postman will be used to do integration testing with the backend API we create. It offers a clean interface to create many requests, and you can even organize these requests into collections. It helps to test the backend API first to make sure it's working before using it in the front-end. Jest can also be used for testing and is already embedded into React. Not only does it offer unit testing support in javascript, it can also do snapshot testing for the front-end to make sure components are rendering correctly. Enzyme is complementary to Jest and offers more functions such as shallow rendering. UnitTest will be used for Python testing as it is simple, has a lot of functionality and already built in with python. Sentry will be used for keeping track of errors as it is also easily integratable with Heroku because they offer it as an add-on. LogDNA will be used for tracking logs which are not errors and is also a Heroku add-on. Its good to have a separate service to record logs, monitor, track and even fix errors in real-time so our application can run more smoothly.
Pros of Jest
- Open source36
- Mock by default makes testing much simpler32
- Testing React Native Apps23
- Parallel test running20
- Fast16
- Bundled with JSDOM to enable DOM testing13
- Mock by default screws up your classes, breaking tests8
- Out of the box code coverage7
- Promise support7
- One stop shop for unit testing6
- Great documentation3
- Assert Library Included2
- Built in watch option with interactive filtering menu1
- Preset support1
- Can be used for BDD0
- Karma0
Pros of Sauce Labs
- Selenium-compatible60
- Webdriver compatible46
- Video recordings of every test35
- Qa31
- Mobile support29
- Any programming language26
- Developer tools23
- Test local and firewalled servers21
- Jenkins integration20
- Pristine VMs18
- CI Compatible17
- Appium support11
- Parallel testing9
- Rapid environment preparation8
- Mobile device support8
- Easy testing on almost any device7
- Allows me to Focus more test automation rather than IT7
- Secure testing and easy setup6
- Easy setup with CI and fast automated tests5
- Quick support response5
- Fast and reliable to host the automated tests4
- Easy to setup and understand,4
- Easy setup and integration with Travis Ci3
- Maintained browser matrix3
- Easy onboarding, do not need to manager VMs/OS/Browsers3
- Efficient tool to verify product quality2
- Teamcity Integration and mobile testing win2
- Hany for platform testing2
- Great documentation2
- Generous free trial2
- Easy. Straightforward. Scalable2
- Great way to integrate test suite on cloud2
- Simplicity of Sauce-connect2
- Very Good, Quick, flexible Infrastructure Support1
- It's great for my QA work1
- Awesome tech support1
- Having this available for CI servers is fantastic1
- Amazing service to do cloud cross browser testing1
- Depth of integrations1
- Because of its cloud based support for appium1
- Easy setup, Works great with selenium.1
- QE support1
- Manuals are not very well versed for beginners1
- Secure testing1
- Cheaper than browserstack1
- Stable1
- Simple to set up and integrate so many browser configs0
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Cons of Jest
- Documentation4
- Ambiguous configuration4
- Difficult3
- Many bugs still not fixed months/years after reporting2
- Multiple error messages for same error2
- Difficult to run single test/describe/file2
- Ambiguous2
- Bugged2
- BeforeAll timing out makes all passing tests fail1
- Slow1
- Reporter is too general1
- Unstable1
- Bad docs1
- Still does't support .mjs files natively1
- Can't fail beforeAll to abort tests1
- Interaction with watch mode on terminal0
Cons of Sauce Labs
- Relatively slow2
- Expensive2
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