Best Practices For Visual Regression Testing On Cloud

19 August 2023

Visual regression testing is the software testing process that is used to test your software application by visually finding any error or malfunctioning in the user experience. Visual regression testing ensures that an application or website maintains its intended look and behavior. It confirms the absence of any unplanned alterations to its visual design or functionality.

This procedure entails comparing a reference version of the application or website and its current version, aiming to identify any visual disparities.

Visual regression testing in a Cloud-based platform is the latest trend in the field of software testing and automation testing. It has various advantages, such as it increases the testing scope, costs less, and it increases testing flexibility.

In this article, you will see the concepts of visual regression testing on the cloud, best practices for it, and many such things.

What is Visual Regression Testing

Visual regression testing evaluates the impact of code changes on the user experience by comparing screenshots before and after execution. It’s also recognized as visual snapshot tests or visual testing, and its primary objective is to uphold visual consistency following updates.

The Function Of The Visual Regression Testing

Visual testing validates the suitability of an application’s user interface in terms of its visual attributes. This quality assurance process aims to confirm the accurate display of content and data on the application’s front end.

In case you’re not acquainted with the concept of Regression testing, its purpose is to ensure that any modifications made to the software do not disrupt any previously functioning elements. In the context of visuals, this testing guarantees that alterations to the software do not lead to style-related problems.

The true capability of visual regression testing can be leveraged with Cloud-based AI-powered test orchestration and execution platforms like LambdaTest. It allows the running of visual testing across a large farm of 3000+ real device and OS combinations. This helps to ensure cross platforms compatibility on the visual appearance and interface of the software applications.

Features Offered By The Cloud-Based Ai-Powered Test Orchestration And Execution Platform – Lambdatest For Robust Visual Regression Testing Are As Follows:

This section discusses the features which are offered by the test orchestration and the execution platform.

Execute Selenium and Cypress tests across a range of programming languages, such as Java, NodeJS, C#, Python, and StoryBook. This empowers the delivery of flawlessly designed applications across almost any browser or device.
Employ Mis-match Ignore feature of SmartUI’s Status Bar so that you can tackle the complexities of visual differentiations. This capability allows testers to crop the status bar out from the screenshots. Leveraging the high-end technique of image processing, it accurately detects and eliminates the status bar. This facilitates the analysis of essential UI components with due focus.
Effortlessly install, set up, and execute the LambdaTest NPM package. This enables the direct implementation of the JS scriptsStorybook via our NPM CLI.
Conduct regression testing, the visual ones for your mobile apps on genuine devices. Assure visual uniformity with precise pixel-to-pixel comparisons against your reference point, encompassing various screen sizes, resolutions, and layouts.

Best Practices for Visual Regression Testing on Cloud

Let us see the practices a tester must follow while performing visual regression testing on a cloud-based platform like LambdaTest.

Following these practices during the test automation will make your software application visually more powerful and efficient.

1. Tool Selection:

Choosing the appropriate tool to perform visual regression testing on the LambdaTest is one of the most important and essential steps in moving ahead of the testing process. Various parameters should be kept in mind during the tool selection for testing automation, such as the software type, compatibility aspects, resolution, etc. LambdaTest integrates with various tools like Selenium, Cypress, Playwright, and others, using which you can perform visual regression testing.

2. Consistent Environment:

Never forget to create a conducive setup that will facilitate cloud-based visual regression testing. The interface provided by using these environments allows you to examine the visual outcomes and input received during the testing process. The testing team has the ability to pause the visual regression testing procedure and make the necessary corrections.

The team conducting the testing should also maintain resource isolation for the environment. It aids in preventing any type of intervention during automation testing, which increases the effectiveness and productivity of cloud-based visual regression testing.

3. Isolation And External Factors:

Remember that the isolated environment should not be affected by any external factors. They include network latency or fluctuations, system updates, or background processes running on the testing machine. These factors may lead to visual error and malfunctioning of the software application. External influences can potentially introduce visual errors and cause malfunctions in the software application.

Ensuring a controlled environment by addressing the factors safeguards the accuracy of the testing results. All the screenshots and visual reports of the testing process will be saved in that specific folder. This will help to perform visual comparisons effectively.

4. Scriptless Test Cases

Visual regression testing on the cloud platform using scriptless test cases is the best approach. Since numerous cloud-based AI tools are available, test automation can be utilized to develop test cases simultaneously. It is because the testing scope of a programmed test case is limited.

But using AI technologies offered by LambdaTest for test case design opens up possibilities for the testing team to consistently cover the testing scope. It will perform visual testing against some test cases, and again, it will recreate the test cases according to the previous result and analysis. This practice will bring the best visual result for your software application.

5. Documentation Of Visual Test Cases

Documentation is a very effective and important practice in any software testing process. In visual regression testing, you need to test and verify the components visually, and here it is important to mark down your observations, bugs, and analysis and work on them accordingly.

For your visual regression tests performed in LambdaTest, you should create clear and succinct test cases and descriptions. You should also include comments or annotations to describe the aim and scope of your baselines and screenshots.

Additionally, you should preserve and maintain your screenshots and baselines using a version control system or a cloud-based service. Sharing and communicating with the client will help you understand their demand and make the best possible result.

6. Updating The Baseline

Updating the baseline is a very crucial step in the visual regression testing process when performed in LambdaTest. It consists of the practice of taking the feedback result and analyzing them. If the result is considerable, you can approve this update in the baseline. And if you think that it is not worth consideration, you can simply reject them. But you need to mention all these in the baseline. It is because this will help you in the future because you can see all your testing logs in the baseline.

Mention the changes that were done intentionally, their reasons, and such things. It will also help all the team members have an overview of the changes that are going on in the software testing process.

6. Optimize Testing Coverage And Scope

Always remember to prioritize the testing scope for each component, specifically when executing visual regression testing in cloud platforms like LambdaTest. The high-priority components must be paid more attention, and they should be executed with high precision.

Use the concept of full-page and component-based screenshots to compare the changes visually by the testing team. Using this practice in visual regression testing will help achieve a better UI experience and enhance the testing results. You can use some advanced features like custom attributes.

These attributes help find the elements separately during visual regression testing. Also, you can use the trigger events and DOM concept. These will help to perform the screenshot comparison effectively.

7. Performing Parallel Testing

Apart from this, you can leverage parallel test execution in performing visual regression testing in LambdaTest. Executing parallel testing is what makes visual regression testing productive and effective, though, along with those other factors.

8. Learn From Failure

It is the final practice that all testers must follow to perform visual regression testing on the cloud and during test automation. Learn from your previous failure. Document the mistakes that you have made previously. Write down the tool feedback and in which specific tool you got some issues performing the testing process. And learn from these highlights.

Make your testing goal and work on your failures. This will bring the best result for your software application. Also, it will help in the overall development of the organization as well as the individual tester. You should follow These best practices while performing visual regression testing on the cloud.

Conclusion

Visual regression testing is mainly used to find any kind of visual malfunctioning and errors in the software. Visual inconsistency is one of the major reasons that lead to decreased number of users of a product.

Some of the best practices that every testing team should follow to perform visual regression testing using the cloud are the selection of appropriate tools, using documentation, using AI-based test cases, etc. Various tools can be used to automate testing and perform visual regression testing on the cloud, such as LambdaTest.

Hope you get an understanding of the best practices for visual regression testing using the cloud and their various aspects after reading this article.

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Arnab

Arnab is a professional blogger, having an enormous interest in writing blogs and other jones of calligraphies. In terms of his professional commitments, He carries out sharing sentient blogs.

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Waterjet Vs. Laser Cutting: Which Is Worth The Hype?

Waterjet and laser cutters can slice through materials that no other cutting tool can. They are invaluable for prototyping products and precision manufacturing. But which one is worth the hype - waterjets or laser cutters? This article provides everything you need to know about waterjet vs laser cutting units. Learn how they work and which one is best for your industrial manufacturing facility. Waterjet Vs Laser Cutting: Unlike the vast majority of blades and saws, waterjets and laser cutters don't have a blade. The lack of a blade makes engraving and detail work much more precise. And, waterjets and laser cutters are computer operated, as to achieve a very high level of precision. Both machines can engrave minute lettering and symbology into a wide range of manufacturing materials. But each machine goes about it a very different way. Both methods of cutting excel with 2D objects and engraving, but which is better: waterjet or laser cutting? What Is Laser Cutting? Laser cutting uses a high-focus laser to cut or engrave materials. Laser cutting is a method of subtractive manufacturing, which means it only takes away material. This is in opposition to additive manufacturing, like 3D printing. Special software guides the lasers using mirrors. A gas power source provides energy to the system, usually in the form of CO2. The CO2 fuels the laser which outputs between 1,500 and 2,600 watts. Some systems implement an additional gas jet to expel the excess material. Laser cutting is a very precise form of subtractive manufacturing. The intense heat of the laser cuts through material like a razor using a precision burn. Laser systems cut material from sheets or large panels. Laser Cutter Materials: Laser cutting systems make precision cuts in a wide range of materials. The only material that a laser cutter is not "cut-out" for is reflective metals. The reflective property of some metal reflects the laser off of the cutting surface, which can be dangerous. Laser cutters are great for cutting glass, wood, plastic, and a wide range of metals. Laser cutters encounter obstacles, however, when trying to cut compound materials. If the material contains multiple materials, then it has multiple melting points. If the material has multiple melting points, then a laser takes longer to cut through it, and cuts can become uneven. Laser cutting systems work the best with flat sheets of material, with a thickness range between 0.1 inches to just under a half-inch. And, most laser cutting systems proficiently perform the functions of cutting, drilling, engraving, welding, ablating, and structuring. What Is Waterjet Cutting? Waterjet cutting systems utilize a high-pressure waterjet to slice through materials. The water is shot through a very fine point and creates over 60,000 pounds of pressure per square inch. For tougher materials, a mixture of water and an abrasive acts like a diamond saw blade. Garnet is a common abrasive for use in waterjet cutters. Aluminum oxide is another common abrasive that you can use with a waterjet cutter. The process of waterjet cutting is a high-speed version of natural erosion. With a big enough waterjet cutter, you can make another grand canyon in a fraction of the time. Read more about how the best water jets can cut through anything nature makes. Waterjet cutters differ from laser cutters in that the power source does not reside with the cutting unit. Since a waterjet cutter outputs between 4 to 7 kilowatts, the water pump is located away from the worksite. This is also true because the water source is rarely nearby your bench. Waterjet Cutting Materials: Unlike a laser cutter, waterjet cutters can effectively cut almost any material. They have no problem cutting through compound materials with multiple material types. The pure pressure of the water jet is enough to cut cleanly through anything. Waterjet cutter units are especially useful for cutting precisely through masonry. They're also good for cutting and structuring stone, thick metals, ceramics, and glass. Waterjets handle thicker material than laser cutters. They can handle material that is up to around 2 inches thick. But they don't do as well with material thinner than 0.4 inches. Level of Waste from Waterjet vs Laser Cutting: Laser cutters create a minimal amount of off-fall and waste. Very little, if any, cleanup is required after cutting. The only waste that laser cutting produces is a small amount of dust that is easily vacuumed up. Waterjet cutting, on the other hand, creates a lot of waste. You might think that waterjet cutting would be cleaner, but it is not. The abrasive material in the water adds a toxic element to the off-fall liquid. For this reason, waterjet cutting requires special waste-water disposal, safety gear, and a bigger project budget. What's the Cost to Purchase and Operate a Waterjet vs Laser Cutter? A plasma laser cutting machine will cost between $15,000 to over $250,000 at the initial purchase. Waterjet cutters are more expensive because they require more specialized materials. They range from $100,000 to around $400,000. On average, either machine will cost around $350k. Expensive industrial machines can exceed $1,000,000. On average, a laser cutter costs between $13 to $20 an hour to operate. Waterjet cutting systems run between $15 to $30 an hour to operate. Final Thoughts: At the end of the day, waterjet cutters cost up to five times more to operate than laser cutters. Waterjet cutters can cut thicker and more complex materials, but they are slower than laser cutters. So, when considering waterjet vs laser cutting, laser cutting will save you time and money. If you like this article on which is better, share it with your friends on social media. And check out the blog for more resources on hardware and gadgets. Thanks for reading! Read Also: How Portable Metrology Tools Are Making Manufacturers More Flexible

Top 7 Sites Like Humble Bundle in 2021 [Full Review]

If you are a sassy gaming person, you already know just how costly it is to create a library of your favorite games. Games are something that takes you out from the real world to the virtual world where you can control everything. Thanks to sites like humble Bundle, games have become cheaper. No matter which games you are looking for, there is always a chance that you find a good deal on a humble bundle. Humble Bundle is one of the best websites to get tempting deals on new games. Recently, humble bumble has added the Nintendo switch to its catalog, further extending the library database. As a customer, you can even offer your price to buy the games on the Humble Bundle. Humble Bundle was not popular during its early years. It has just recently caught the public eye when it has started getting support from charities. Sites Like Humble Bundle in 2021 Humble Bundle has become a one-stop shop for every gamer to buy video games. However, what will happen if the humble Bundle ceases to exist? Are there any humble bundle alternatives in the market? Sure there. This is the main motive to write this article. Here we have enumerated some of the best humble bundle alternatives. 1. Fanatical Fanatical is one of the UK-based game-selling retailers. The website comes with easy-to-use interphase, and top seller and most downloads categorize all the games. There are subcategories under the main menu categories with the latest releases, sales, and discounted games. You can even navigate the titles based on the operating system. Fanatical is not only famous for gaming deals, but it is also popular for offering low-cost software, ebooks, and programming courses. With more than 6000 games to choose from and more than 1000 publishers, fanatical can be considered Humble Bundle sites. 2. Epic Bundle The epic Bundle can be considered one of the sites like Humble Bundle. It offers interesting deals on software applications, programs, ebooks, and games. The highlight of this website is that it has offered every day. So if you want to get the best offer on your favorite games, you might as well start checking this website daily. The epic Bundle works on the same principle of the fanatical. It takes game info from the published games and offers its audiences at a lower price. 3. Indie Gala Indie Gala is a site like Humble Bundle. We like the most about this website because it is easy to navigate, and you can decide how much to give to charities and developers. The sole purpose of this website is to support small developers and indie studios. Generally, the prices of the games are lower than the original price. However, if you are buying six or more games at the same time, you can get a discount of 95%. It also holds events for giveaways. There are always some offers or another daily. So, you might visit websites daily to have a look at the discount. And if you are lucky enough, you can even get some games for free. 4. Groupees Groupees have similar features as the humble Bundle. This website is supported by charities and collects donations to support the developers of the games. It has a huge collection of ebooks, programs, software applications, and games. Groupees can be considered a humble bundle alternative. The games are available at a huge discounted price on this platform. You will even be able to see some of the count-down timers for the limited discounts. If you can grab this offer, you will surely be profitable. The best part of the Groupees is that they have their community to talk with people with the same interest as yours. 5. Green Man Gaming When searching for the alternatives for Humble Bundle, Green Man Gaming is just way ahead of its time. You can even say that it is more advanced than the Humble Bundle. The website looks appealing to the visitor to how the games are categorized. It makes it easy for users to navigate and locate their favorite games. However, this site has features that stand out. Instead of offering bundle gaming offers, it offers individual games at a reasonable price. This website has a gaming community where you can discuss the games with other people. You can write and share your thoughts on a particular game or even read reviews about a game you plan to buy. 6. Good Old Games (GOG) Good Old Games is not like the usual site that can be considered an alternative for the humble Bundle. Instead of selling activation keys of the games of other platforms, it has its products. All the products are in the DLC-free downloadable option. There are a variety of games that you can select from. If you have no games in your mind, then you can select from the top list. Apart from the games, GOG also sells other media related to gaming. 7. GamersGate If you are looking for sites like humble Bundle then you can surely not miss GamerGate. It can be the best humble bundle alternative out of all the websites on the list. This website mostly focuses on individual games rather than bundle games. The Best part of this website is that it has a huge collection ranging from old games to the latest releases. With more than 6000 games in its gaming library, it offers some of the best discounts. Some of the discounts can even go as high as 90%. GamersGate is a client-free platform, which means you do not have to download any third-party software application to access this website. Conclusion We hope that we were able to provide you with some of the best humble bundle alternatives. These alternatives offer the same deals that you could have hoped from the Humble Bundle. Charities support these sites; hence, you will find an option to donate to the developers for their hard work. We all know that gaming is the best way to kill boredom but do not get carried away with gaming. Make sure that your normal life is not hampered unless you are a professional gamer. Read Also: 8 Surprising Ways Cloud Computing is Changing Education Solar Battery System Types – AC Vs DC-coupled Top 5 Customer Experience Podcasts How Many Jobs Are Available In Real Estate Investment Trusts?

How to Choose the Embroidery Machine for all Your DIY Projects?

Best Embroidery Machine can help in making your work easier only if you have found the desirable device for you. We can also guide you to find a budget-friendly machine for you by keeping in view the efficiency and effectiveness of the embroidery machine. The advancement in technology has enhanced the need for electronic devices as well. Resultantly, it has made human life very simple, and we can perform multiple tasks at the same time. In earlier days, handmade embroideries were in trends, but now the era of chaos has changed the directions, and all such tasks can be performed by computer technology. That's why it has become imperative to find out the best embroidery machine if you genuinely intend to complete duty in no time. How to choose the best embroidery machine? The answer to this question entirely depends on your skillset and tasks you have to perform with that machine. Thus, it carries significant importance to make a whole mindset about the devices and how you are going to use them. It is essential to consider that the choice of a beginner who looks for a budget-friendly embroidery machine will vary from the person who has embroidery business for ages. You are strongly recommended to check a proper guideline before you buy the best embroidery machine either for your home or for business purposes. The present discussion aims at identifying essential tips and guidelines that you have to keep in mind while you purchase the embroidery machine. Moreover, you will find the multiple uses of different models of the machine in this discussion. Just thoroughly read the debate and find out the most suitable, effective and budget-friendly machine for you. A machine that not only makes your tasks easy but also saves your valuable time and money too. 1. Must consider the size of embroidery machine When you find the size of the embroidery machine, it'll rely upon what precisely you plan on weaving with it. It means what kind of embroidery you want to have with that particular machine. The primary thought will be the loop size as that will decide how huge your plan will most likely be as you won't probably make a bigger size. These hoop sizes start at around 4 by 4 inches and climb. In case you're anticipating making immense structures, you'll need to put resources into a machine that offers a greater circle. The most fabulous circles will be accessible on the more expert evaluation machines. The discussion clearly explains that for the beginner or home purposes, the standard size of the embroidery machine is enough as it can perform the tasks efficiently. But on the other hand, for the professionals, the ideal size of such a machine should be chosen to make their job easier to perform. Size is first and the foremost feature that cannot be ignored at any cost. The ideal size embroidery machine not only guarantees efficient performance but also helps in saving time in this era of chaos. 2. Choose the embroidery thread wisely Once you have found out the ideal size machine for you, the next imperative step is to select the embroidery thread sensibly. It doesn't matter if you are a beginner, using a machine at home or you bought it for a business purpose. What matters is the quality of devices and their related tools. The quality should not be compromised at any cost, as this decision ultimately influences the final results too. The way to choose the most suitable thread for the embroidery machine is to focus the quality. Such threads come in metallic, cotton, polyester, rayon, and the sky are the limit from there. You can get it in an assortment of thicknesses and loads. The key is to discover the thread that is made well, and won't be as influenced by age as lower-quality materials. Great quality threads won't shred or break particularly like lesser quality string. Make sure to pursue the headings on your machine and the structure itself. Numerous structures will call for 40 weight string. For the more extended period, bargain thread might not be an ideal option to go for if the design looks worse after putting the low-quality thread. 3. Prioritize the brand The premium quality brands are offering most of the embroidery machine reviews. All these brands don't compromise the quality. Singer, Brother, Janome, and Bernina are, for the most part, names that are outstanding for delivering extraordinary embroidery and sewing machine. Frequently, it boils down to individual inclination for what machine is ideal. Consider the way that these brands often have a wide assortment of models to browse notwithstanding contending with one another for who is perfect. Before you stepped into the market, it is suggested to check the customer reviews about particular brands. It will not only help you in finding out the best brand for you but will also help you in choosing the most suitable model as per your needs. You must focus the reviews being given by the customers as they truly represent the quality and involve no deception. This sensible act will help you in the selection of the most suitable machine for you from the premium quality brand. You will be assured and confident that you have spent your money in an excellent place and it didn't go wasted. That's why customer reviews must be taken seriously before the final decision. 4. Check if the machine is Mac compatible or not Individuals love their Mac PCs, however here and there they find that they aren't perfect with each program that they like to utilize. The equivalent is valid with a ton of the embroidery machines accessible available today. One spot to look on the off chance that you need to use your Mac for your structures is with Brother. For instance, the brother brand offers MacBroidery Software that will enable you to make your plans utilizing your Mac PC. There are some other programming types accessible that will allow you to use your Mac notwithstanding Brother's product. Remember, these frequently should be acquired independently from your machine. There are a few machines that don't require to be snared to a PC as they can run free of a PC, which could be helpful for a Mac client. Though it is an additional feature, the modern era requires some recent trends to stand out from the crowd. You will find this feature quite comfortable for you. Mac-compatible devices will ensure some trendy style embroidery and the latest design. For the business perspective, this feature is a must check but might not be necessary for the beginners. 5. Decide your budget first This is one of the core tips, and you can not ignore it. If you have a limited budget, then surely you will not get something that performs exceptionally well. It requires you to make a trade-off between your budget and the features of the machine. If you are getting the premium quality product, then there is nothing wrong with paying some additional money. At least you will be getting a supreme quality embroidery machine without compromising the quality. So, spend the money if your machine is worth it. The guidelines mentioned above are essential to understand first and then make practical use of them. You cannot get an ideal device without putting a genuine effort into its core features; it's quality and the price of the machine. You are always recommended to visit the market with some prior research. It will save your time, money, and ultimately you will be getting an ideal device for you. Read Also: Why Sensors Are Essential In Machine Automation Top 10 Best Sewing Machines For Beginners

Best Practices For Visual Regression Testing On Cloud

What is Visual Regression Testing

The Function Of The Visual Regression Testing

Features Offered By The Cloud-Based Ai-Powered Test Orchestration And Execution Platform – Lambdatest For Robust Visual Regression Testing Are As Follows: