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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3d Printing: Techniques And Application In The Energy Sector

3D printing is manufacturing by constructing a three-dimensional object from a digital 3D model. Emerging technologies like 3D printing have brought revolutionary advancements in various industries, and the energy sector is no exception. This article focuses on the techniques and applications of 3D printing in the energy sector, highlighting its potential to transform traditional manufacturing processes, optimize efficiency, and support sustainable practices. Types Of 3D Printing Techniques For the Energy Sector There are several techniques employed in 3D printing, including Fused Deposition Modeling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA). Each plays a significant role in rapid 3D printing services. Here's a detailed explanation of these 3D printing methods: Fused Deposition Modeling (FDM): FDM is the most famous 3D printing technique, where a thermoplastic filament is heated, and a 3D object is formed. FDM enables the production of complex shapes, intricate designs, and functional prototypes that improve energy systems. Selective Laser Sintering (SLS): SLM employs a high-powered laser to selectively fuse powdered materials, predominantly metals, generating durable and intricate components. This technique finds applications in manufacturing heat exchangers, turbines, and other robust energy system components. Stereolithography (SLA): SLA uses a liquid resin and solidifies it when exposed to a specific wavelength of light, creating precise and high-resolution objects. SLA produces custom-made energy storage systems, solar panels, and intricate electrical components for better energy utilization. Advantages Of 3D Printing In The Energy Sector There are several advantages of 3D printing, of which it has been in the leading demand. Some basic benefits are explained below:- Cost Reduction: 3D printing allows the production of intricate and complex components in a single process, eliminating the need for assembly. It reduces manufacturing, increases efficiency, and lowers production. Customization And Optimization: The flexibility of 3D printing enables the customization of energy components based on specific requirements. By optimizing shapes and structures, energy systems can be designed for optimal functionality, resulting in enhanced performance and reduced energy wastage. Supply Chain Sustainability: Traditionally, energy systems rely on extensive global supply chains. Implementing 3D printing can reduce the dependence on transportation, minimize carbon footprints, and shorten lead times, contributing to a more sustainable energy sector. Improved Efficiency: 3D printing enables the creation of lightweight components with intricate geometries, reducing energy consumption and improving overall system efficiency. This translates to enhanced energy generation, transmission, and storage capabilities. Application Areas In The Energy Sector 3D printing is applicable in some areas in the energy sector as follows:- Renewable Energy Components: 3D printing facilitates the production of wind turbine blades, 3d printed solar panels, and energy storage systems, allowing customized designs that maximize energy output and efficiency. Optoelectronic devices like photovoltaics and sensors can also benefit from 3D printing. Energy Infrastructure: 3D printing for manufacturing pipes, heat exchangers, and valves reduces costs and enhances their resistance to corrosion, heat, and pressure. Advanced materials and designs derived from 3D printing contribute to safer and more reliable energy infrastructure. Energy Efficiency Devices: Customizable and intricate designs are made possible with 3D printing in developing energy-efficient devices like heat sinks, smart meters, and sensors. These technologies enable better monitoring, optimization, and management of energy consumption. Tooling And Prototyping: 3D printing expedites the process of producing prototypes and specialized tools for testing and maintenance within the energy sector. This results in faster innovation cycles and improved productivity. How 3D Printing Works The basic steps which are followed by 3d printing are as follows:- 1. Submission Of Design: The customer provides a 3D design file in a compatible format.STL or.OBJ, to the service provider. This design file can be created using 3D modeling software or downloaded from an online repository. 2. Pre-Printing Analysis: The service provider examines the design file to ensure its suitability for 3D printing. They check for potential issues, such as intersecting geometries or unsupported overhangs, that may affect the printing process or the final result. 3. Material Selection: Depending on the customer's requirements and the properties desired for the object, the service provider suggests suitable materials for the 3D printing process. Options can include various plastics, metals, ceramics, or composite materials. 4. Printing Process: Once the design and material considerations are finalized, the 3D printing process begins. The service provider prepares the 3D printer, loads the selected material, and starts printing. The printer follows the instructions in the design file to layer the fabric and create the desired object. 5. Post-Processing: After printing, the printed object is typically subjected to post-processing steps. It may involve removing support structures, cleaning the thing, or applying surface finishes to achieve the desired texture, color, or smoothness. 6. Quality Assurance: The service provider examines the printed object for defects or imperfections and ensures it meets customer requirements. If necessary, adjustments or corrections can be made before final delivery. Conclusion Integrating 3D printing techniques within the energy sector presents transformative opportunities for manufacturing, sustainability, and energy efficiency. The ability to customize designs, reduce costs, optimize efficiency, and shorten production timelines can revolutionize energy generation, transmission, and storage. As this technology evolves, a collaboration between 3D printing experts, energy specialists, and researchers will lead to further breakthroughs, fostering a more sustainable and efficient energy future. Read Also: Advance Copier: Printing Quality Business Cards On Your Own Computer 7 Ways To Stop Spending So Much On Printing In Your Business Digital Printing Contributes Much Towards The Progress Of The Industry

Features That Make Filmora The Best Editing Software In 2022

Video is not just a skill to learn but is also become in demand for different professions. If you are a YouTuber then you must have to learn video editing to create and edit videos for your viewers. It needs lots of effort and dedication to create a unique video with the best features. Filmora helps you to become a professional video editor and can edit videos for personal as well as professional use. You can also do editing work for others and can charge them money for editing services. You can make advertisement videos for business products and can also edit videos for YouTubers and Social Media influencers. It is all become easy for your once you start using Filmora. Filmora has many professional and expert users who are regularly using Filmora. You have to check all these on Filmora and for this, you have to visit the website. Latest features in Filmora 11: Filmora 11 comes with the latest features that allow its users to make videos attractive and watchable for viewers. So, you have to check all features and for the access, you have to purchase a plan. You can use Speed Ramping for speed control. Masking for safety and security. Auto Beat Sync for better music. and Instant Mode to get any mode for a better experience. You will also get 3rd-Party Stock Media (professional movie effects from OpenFX and NewBlue FX) and also Wondershare Drive for storage. With all these, you will also get audio editor features which are also essential to make your video impressive. Audio plays a very important role because it explains the content of the video and what the creator wants to explain to the viewers. Get Brief Descriptions Of The Latest Features: Auto Beat Sync Mask Instant Mode 1. Auto Beat Sync: It analyzes the music automatically and creates highlight videos for you. It allows you to choose the videos which are better without checking them all. 2. Mask: It helps you to cover all the effects and make a unique and clear video. There is no sign of effects and tools which you will use. Nobody will know how you make such impressive and unique videos. 3. Instant Mode: It helps you to provide a complete template video. You can quickly find a nice video from your media. Reviews And Ratings: People love using Filmora because of its features and qualities. You can learn video editing without any hassle or any classes. You can learn editing by just watching videos and with regular practice. Many teachers, students, YouTubers, Social media influencers, and many more are using Filmora regularly and are happy with the results they get. You can become a professional editor by just using Filmora. You don’t need any previous experience to use Filmora and edit videos in Filmora. Many beginners are happily using Filmora and they like it that they become professional. Why do you have to try Filmora? You need to know the pros and cons which are given in Filmora and check them all for better understanding: Pros: Filmora comes with the best offers that allow you to get the best deals on plans and prices. You will get all these features at very awesome pricing. Filmora offers you discounts on a flat fee which make it affordable for you and provide you best results. Filmora is accessible from anywhere and anytime. You don’t have to worry about your location and privacy. Cons: Filmora doesn’t have complete access for users of features and tools. You can use limited sources as compares to other video editing software. Is Filmora better than others? You can compare the features of Filmora with other editing software and you have to decide which one is best in 2022? You have to check all the features and benefits which are available in Filmora to make comparison easy. Filmora has the best editing features which makes your video much more interesting and unique. You don’t need any previous knowledge to use Filmora for video editing. Many people are there who are regularly using FIlmora without any worry. You can also compare the prices and plan with others to get better knowledge about which video editing software is best. Price, Plan, and Download: Filmora is available at different prices and plans. You can choose which one is suitable for you and which one you have to choose to get your access. You can choose a plan for personal and professional use. So, it all makes Filmora the best video editing software. You can choose the plan that starts from US$28.98. Filmora is also available with a limited period offer which is the best deal for you to choose. You can make the decision today to start learning. Download from here: Windows Mac iPad Conclusion: Filmora is available with numerous benefits and you don’t have to waste your time and money on classes. You have to check all the details on Filmora and get your access. You need to get the details and have to start using Filmora from today. Filmora helped many people in getting their desired editing in the video. You can edit any video very easily and make it more impressive for viewers. You will get numerous options that allow you to get the best results for your video editing experience. Filmora is always there to help you in learning video editing easily. You must have to try it for once. Read Also: Why You Should Always Use Special Effects for Video Productions Try These Mac Screen Recording Software For Your Next Webinar Movavi Video Suite Review: A Comprehensive Tool to Create Videos

Smart House Technology for Saving Energy

From smart locks to futuristic thermostats, modern homes are living up to their name more every day. But these technologies aren't just convenient and innovative. Though they do make life easier, they can also put a huge dent in your utility bills and help you consume less energy at home. This is possible with a smart thermostat, for example, which monitors your lifestyle habits (i.e., when the house is empty or when everyone turns in for the night) and makes temperature changes to optimize your energy use. Smart House Technology for Saving Energy: Adjusting your thermostat by 7-10 degrees for eight hours can make a significant difference in your energy consumption, and smart technology makes it easy to do so without having to compromise your family's comfort at home. The device will simply make the temperature change when everyone is at work or school, for example. A similar but less talked about innovation is motorized window shades. These open and close at peak times throughout the day to help heat and cool your home naturally. These and other energy-saving smart technologies are outlined in greater detail in the infographic below. Modern technologies are certainly eye-catching, but plenty of less thrilling appliances, such as efficient stoves and dishwashers, are also being innovated to consume less energy. A professionally installed new HVAC system, for instance, will keep you comfortable while lowering your utility bills. This will ensure you can cool off and warm up with a quality system while also integrating energy-saving technologies and practices at home — all without compromising your comfort. Read Also: 5 Tips For Buying A Second Household Get The Best Assistive Technology: A Telecare Equipment

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: