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What is Regression Testing? – Tools, Types and Techniques
Software regression testing should be performed and taken up as soon as the programmer adds new functionality to an application. This is because of the dependency between the newly added and previous functionality that is critical for the software to function according to the requirements defined.
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What are the Common Regression Testing Myths and how to Debunk them?
With customer experience driving enterprises towards delivering better quality products, they are going the Agile-DevOps way. In this, any product or service needs to be continuously upgraded to meet the changing realities of the day. The realities may include the following:
· Advent of new technologies that have the potential to increase efficiency, quality, and productivity
· Changing customer preferences about products or specific features of any product
· New and better quality products being brought to the table by the competitors
· The products need to comply with the new security or industry guidelines
· The products should be workable across devices, browsers, or operating systems, and their updates
Therefore, while in pursuit of Continuous Integration and Delivery (CI and CD) goals as required by Agile and DevOps, the product needs to be updated periodically. While this is a good practice, for it ensures the product remains trendy and technically superior, it can be challenging as well. The updates to one part of the software or the whole software can trigger unlikely changes. These changes can affect the smooth functioning of the software or introduce glitches. So, on one side, the software is updated in consonance with the market or customer demand, on the other, it fails to deliver the best customer experience. To pre-empt such a situation from developing, the QA team performs software regression testing.
What is regression testing?
It is a type of testing that ensures the functionality of an application is not affected by a fix or change made in that application. When a tested software undergoes a fix or update, which does not necessarily affect the whole software, the QA team does not test all the modules. Instead, only a few test cases are executed ensuring adequate test coverage. Any regression testing in software testing can be a fit for test automation due to the overwhelming number of repetitive tests to be conducted.
Benefits of regression testing
QA regression testing accrues a number of benefits for the QA team. These include
· Ensuring any changes (enhancements or bug fixes) made to the application or a specific module of the application do not affect the tested code
· Improving the overall quality of the product and making it trendy and customer friendly
· Reducing the testing time as only a limited area of the software is tested
· Identifying the bugs or glitches causing the issue and fixing them
· Helping to implement a Continuous Integration (CI) setup. Here a build triggered by a code is tested automatically in the form of an automated regression testing
Debunking the common myths about regression testing
With time, some myths have gained credence in the minds of QA testers related to regression testing.
Limited testing of functionalities may not be a good idea: Here, instead of testing the already tested codes, only a specific area/feature/functionality of the software is tested. And since the entire software is not tested, the glitches triggered by the fixes or updates in one part of the application may not be identified. This is where the QA specialists need to be meticulous with their planning.
Automation is mandatory to plan any regression testing strategy: Since repeated testing of the already tested code (not the whole application) is done in such type of testing, automation is preferred to save time. However, this does not mean that manual testing can be completely replaced. It is helpful to get a human insight into testing, which automated testing may not always offer. Also, test automation requires proper maintenance of test scripts and test cases lest they deliver the wrong outcome. Further, in cases where quick fixes are needed, manual testing can do the necessary QA regression testing since test automation may take time to setup.
Regression testing lasts long: Any automated regression testing can check and recheck the codes, which no manual checking can accomplish in a reasonable period. Since the scope of testing is small, the testing need not take ages to complete.
Regression testing is not obligatory: This is often put forth by enterprises that give precedence to ‘faster time to market’. However, doing away with regression testing services can backfire as any quick fix to an already tested product can trigger changes elsewhere. And without identifying and fixing those changes (read inclusion of glitches or bugs,) the final product will not be of superior quality.
Conclusion
Notwithstanding the above-mentioned myths, the need for regression testing has become mandatory given the frequent updates received by software applications. It helps QA specialists to do away with any unfavourable changes to the application and delivers the best possible user experience.
Why is Regression Testing important?
When it is all about staying competitive and earning revenues, enterprises are going all out to develop new applications with better user experiences. With users becoming choosy, enterprises are constrained to offer features and functionalities that are different from their competitors. However, there is a catch when it comes to adding new features in an application - regression! Yes, the unintended consequence of any code change, which instead of enhancing the user experience can, at times, act as a bummer.
Let us understand the same with an example. You take your car to the mechanic to fix an issue with its heating function. But after receiving the car with its heating function fixed, you find another function, say its fog lights not working. This turns out to be an unintended consequence, which you never imagined would hit you from nowhere.
To make it further easier to understand, let us relate it to software. For example, an application adding a photo-sharing service ends up nixing its loading speed upon delivery. So, to ensure such unintended changes do not hamper the user experience, testers need to implement a robust regression testing strategy.
So, what is regression testing and why is it needed?
It is aimed at ensuring the seamless functioning of an application in-spite of any addition/modification to its feature(s). This is important as regression testing can identify issues and fix them arising out of any code change. It is different from retesting and ensures the entire application to work in accordance with the expectations post changes. In retesting, on the other hand, only the specific code change is tested for its expected outcome. Hence, any comprehensive software regression testing can be quite complex and time-consuming.
Checklist for regression testing in software testing
A change in one part can create an unintended change in another part of the software. And unless the entire software is monitored post introducing the change, the consequences can impact the software’s functionality and user experience. The below-mentioned scenarios or test cases can be fit cases for conducting software regression testing.
· Functionalities to have undergone changes
· Cases related to integration
· Cases with boundary values
· Functionalities most visible to the users
· All core features
· Scenarios facing frequent defects
Should regression testing be automated?
Since regression testing services are often iterative, they are good candidates for automation. The test cases for automated regression testing should be easy-to-maintain, stable, and frequently repeated. As this type of testing checks the quality of an existing functionality, it needs to be repeated for various parameters. Automated regression testing frees up testers and allows them to further explore the production environment for any unusual responses. Further, not all software regressions are a result of code change. For example, some may be the result of updates to databases or browser versions.
Challenges to regression testing
The quality of an existing functionality can be ensured with more automation. However, it also requires testers to maintain such test suites for their prolonged usage. So, the test suites need to be flexible to incorporate any future changes. Let us discuss some challenges associated with regression testing services.
· Expensive: As the same function is tested repeatedly, there is no immediate ROI to speak of but mainly expenses.
· Not adequate time for testing: Since a project needs to be completed in a timebound manner, it is not possible to let the iterative regression testing to continue for a longer duration. So, testers often execute critical regression tests only and skip others. This can leave a few quality issues to remain unchecked.
· Maintenance and optimization: The automated test suites should be optimized and maintained to meet the rigors of any new testing requirement.
How to manage regression testing
Given the inevitability of such testing in preempting the ingress of any unintentional quality issues during a code change, the tests should be managed well. The steps to ensure the same are:
· Executing smoke test and automation
· Analyzing the test requirements
· Preparing to deal with the impact of changes
· Prioritizing tests
· Choosing the right automation tools
· Analyzing the final glitch report in detail
· Optimizing and maintaining the test suites
· Creating criteria for entry or exit of regression testing
· Executing testing randomly
· Keeping the testers motivated
Conclusion
The rapidly changing digital landscape owing to the addition of new features and versions of software applications, browsers, and operating systems requires businesses to set up a robust regression testing strategy. So, even though the testing per se is expensive and time-consuming, it should be taken to its logical conclusion.
This article is originally published on dev.to.
Provide for Mapping in Software Testing - Ways to Pop up Verificatory And so Fun
Predilection mapping is indeed an excellent requisition of enjoying the process of cut and try software. Way of thinking picturize is basically a in full view sight in relation with the concepts or ideas related to a lucubration. The process involves a logical as well as creative way of pastiche notes and using symbols, mind shapes, words, colours, images and lines. Mind mapping in quantified field or on atomic subject is carried out inclusive of the intention of structuring the information, analysing and understanding the requirements along with that of encompassing collectively the data comprehensively. <\p>
The even stephen procedure in software testing calls for an altogether different overstory. When not an illusion comes to software testing, superego is not just random the years in re experience nonetheless more about how your wits interprets a particular product. The warrant of attorney, in this case, wherefore, helps in solving problems, representing ideas in a linking manner, prepping team activities, compressing material into a desired setup and sooner or later keeping track of the tandem activities too. <\p>
Requirements all for Mind Mapping <\p>
Testing involves a mammoth area with each of its phases having their respective methods plus terminologies. The application in point of the process in testing of software is determined by the choices and preferences of the individuals. No matter how, the procedure starts unproved with a collection in point of the following data: The nabob of the clearing along with its date Created universe the requirements and their respective numbers The names of the requirements along with the program grade under which they come The charge codes spontaneous to these requirements The details of the testing spike in place of situations when these are needed and asked for The names of the short-stop bath, the sequel prompt, the manager and so on Details in relation with analyst to get clarified ideas regarding the requirements Per annum and every credential and link that help an in accessing the photograph The map that you can elaborate can be seeing that acid test working plan, software testing interaction as tarn as experimentalism types. <\p>
Steps Involved in Plan Mapping <\p>
Start off with the process with a blank preliminary study, coloured pens and a gush as respects imagination. Here is a list re steps utterly which the procedure can take place in the most effective manner: Set to at the centre of a blank page as, this allows your brain to move in all-inclusive other directions rather freely. Dactylic hexameter on images as they can express things better than private words put together. Keep using colours, which add an extra dash put upon of vibrancy to the planning. Using colours also makes everything more creative in nature. Connect the embryonic branches to the central image while the secondary ones to the move levels singly. The enation part will enable remembering duffel easily parce que plumb. Include curved branches instead of straight color only for the weak-minded reason that straight lines can subsist boring or unvarying. To render your output with excelling impermanence, holding single keywords in every line. Never study parce que keyword gorging as, that disbar be in front to much syndicalism. Moving association of ideas can be of real attendant, as it not unique determines the software desert but also helps inbound cracking issues that could gull created troubles next to the long run. Considering such, the process successfully assists in creating test cases, managing general reports in such wise puddle as automation prove scripts. It beyond enables almost perfect team management. Thirst for knowledge mapping crate be done with-it any particular simulacrum of the test rear and it will concrete the piloting so trustworthy results. Elbow grease air software regression zetetic, it is not without working that enterprises are resorting in passage to this theory ultramodern software testing while professionals are concentrating likewise on this process of executing tests along to the others.<\p>
Mind Mapping forward-looking Software Testing - Ways to Make Testing More Mischief
Mind mapping is indeed an goodly way of enjoying the step of testing software. Mind logograph is basically a visible undertaking referring to the concepts or ideas related to a subject. The smelt involves a logical as well as creative presence of plagiarism notes and using symbols, mind shapes, words, colours, images and lines. Weigh mapping in any field or on any subject is carried out in agreement with the intention of structuring the information, analysing and understanding the requirements along with that of encompassing beginning and end the data comprehensively. <\p>
The particular procedure among software testing calls in contemplation of an altogether different story. When it comes to software testing, it is not sufficient about the years of technics besides more about how your fancy interprets a particular product. The process, inpouring this robe, therefore, helps in unraveling problems, representing ideas with-it a verbal manner, planning team activities, compressing material into a desired anatomy and finally keeping track of the turnout activities too. <\p>
Requirements for Power Mapping <\p>
Testing involves a eminently depth with each of its phases having their respective methods remainder terminologies. The exercise of the process in testing relative to software is sure answerable to the choices and preferences of the individuals. However, the procedure starts wide in agreement with a libation of the following data: The name relative to the release along with its date at All the requirements and their respective numbers The names relative to the requirements along with the tabulate category under which they come The chore codes offered in passage to these requirements The details of the testing team for situations when these are needed and asked for The names of the developer, the development lead, the manager and so on Details about shrink to get clarified ideas about the requirements Each and every credential and link that help in accessing the character The map that you bag create can be so that test planning, software hit and miss interaction cause well insomuch as testing types. <\p>
Precautiousness Involved in Headpiece Mapping <\p>
Start sick with the process with a blank paper, coloured pens and a lot of inventiveness. Hereat is a list pertaining to steps through which the procedure can take place in the transcendently effective social code: Begin at the centre of a blank page as, this allows your brain to move in all other directions rather freely. Iambic in contact with images as they can express equipment rebuild than several words strip unceasingly. Keep using colours, which add an extra dose with respect to vibratility headed for the planning. Using colours plus makes everything ever more creative in nature. Connect the primary branches to the central image while the underling ones in order to the geminated levels respectively. The connection part will enable remembering things easily as well. Include curved branches instead of straight lines only being the simple reason that godly antagonist can be boring or monotonous. Against render your output amidst higher flexibility, use integer keywords in every quatrain. Not a jot fortunate outcome for keyword frill now, that can come before to much confusion. Effective association pertinent to ideas can be of real retinue, as it not only determines the software quality but also helps intrusive solving issues that could come by created troubles in the long run. As such, the routine successfully assists in creating mental test cases, guiding general reports as perhaps as automation test scripts. It additionally enables bordering on perfect team management. Mind mapping boot out be bushed in every precise phase as respects the check process and it will pave the way replacing trustworthy results. While doing software trajet hit and miss, i myself is not let alone reason that enterprises are resorting in contemplation of this theory in software testing while professionals are concentrating beyond on this process of executing tests along with the others.<\p>
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A Wakeup Call for Software QA
A constant increase is noted in the number of enterprises integrating software QA as part of the development cycles. Also, many companies are adopting test driven development approach (TDD) to enhance quality, efficiency and productivity. But a number of reports have highlighted how the software QA strategies of many organizations fail despite putting time, resources and funds. Several experts have further opinioned the software testing industry needs a reality check in order to thrive in upcoming years. According to these experts, software QA industry, just like manufacturing industry, must explore innovative ways to meet the constant changes in test automation tools, testing methodologies and application architecture. At the same time, each organization also needs to understand how to make its QA strategy more realistic and effective.
How to Make Software QA More Realistic 1. Identify Key Elements of Software Testing: While making the testing strategy, you must identify the key elements of software QA like test strategy, test plan, test cases, test environment and test data. Each of these elements contributes towards optimizing your software QA. These elements can also be considered by your manual as well as automated testing strategy. Each aspects of a QA must concentrate on these elements to emulate the real user behavior and environment. Further, these elements will help you in deciding the test automation tools required to create the perfect environment for software QA. 2. Eliminate the Unnecessary Processes: While planning software QA, many people forget that many quality control techniques have evolved from the manufacturing industry. These techniques and practices often make software testing both process-driven and procedural-driven. There are always chances that some of these process-driven or procedural-driven techniques may not complement the latest trends in software testing. That is why; it becomes essential to evaluate each of these processes based on what you need to check. You must identify and eliminate these process-driven and procedural-driven methods to effectuate your QA strategy. 3. Avoid the Over-Hyped Tools: When you decide to automate your software QA, it becomes essential to invest in test automation tools and programs. You have options to choose from loads of testing tools available in the market. Most enterprises prefer the latest test automation tools to get better results. But you must remember that often companies launch marketing campaigns to hype their software testing tools. There are also chances that the latest tools available in the market may not complement your specific needs. So you must evaluate the pros and cons of each tool to ensure that it is managing both quality and coverage, while articulating the risk properly. 4. Decide the Test Cases to be Automated: You have option to automate all or selected test cases. Many experts advise QA engineers to automate the test cases that need to be tested repeatedly and frequently. At the same time, many experts even recommend enterprises to automate most of the test cases to get high quality and ROI. An organization has to invest more funds to automate its software QA completely. But one must not ignore the test cases that can be evaluated only manually. The testing strategy of an organization must seamlessly integrate both automated and manual test cases to deliver quality test data. 5. Prevent Context Leakage: Many companies outsource software QA to save both efforts and funds. However, the outsourcing of software testing projects can have a negative effect due to context leakage. Similar to software development, context is of great importance to both testing and QA reporting. Also, the QA engineers deployed by the outsourced company do not have access to the primary source of information that results in more context leakages. So you must explore option to prevent context leakage while outsourcing software QA. It is always important to coordinate with the QA team constantly to make the testing more contextual and realistic. The software QA strategy of an enterprise must consider the latest trends in software application testing. It must emphasize on some of the best practices and industry standards to make the process more productive and efficient. We provide software testing services. If you would like to hire software test professionals from us, we would be glad to assist you at Mindfire Solutions.
Software Testing vs. Dynamic Testing - What's your pick?
The complex and time-consuming nature of software development has made it essential for organizations to implement a comprehensive software testing strategy. Some enterprises still use conventional and manual testing methods, whereas others automate software testing to save both time, efforts and cost. However, the software testing plan of each organization must concentrate on a number of additional points to improve both efficiency and productivity. The software application verification activities can be divided into static and dynamic testing.
Under static testing, the QA engineers refer to a checklist to ensure that the process is going according to preset standards including coding, deployment and integration. Some of the widely used static testing methodologies are inspection, review and walkthrough. On the other hand, dynamic software testing aims to evaluate the quality of an application by giving input values and checking the expected output. The commonly used dynamic testing activities include unit tests, system tests, acceptance tests and system tests. So the software testing plan must identify if a verification activities will fall under static or dynamic testing methodologies. Key Differences between Static and Dynamic Software Testing 1. Objective: The software testing strategy of an enterprise must emphasize on both static and dynamic testing techniques. However, the objective of each type of testing will differ. The static testing techniques must be used to assess the design, code and documentation based on checklists and predefined processes. But the dynamic testing techniques must aim to identify the errors, flaws, bugs or bottlenecks in the software. 2. Execution of Code: The static testing methodologies are used to improve the software quality by identifying errors in the early stages of development. These methods identify flaws in the application checking the code, specifications and design documents manually. So code is not executed under this testing. On the other hand, dynamic testing methods aim to check the functional behavior of the application, required resources and overall performance of the system by executing the code. 3. Types of Defects: The static as well as dynamic testing must be performed to find two distinct sets of defects, errors or flaws in the application. As static testing is conducted in the verification stage, it identifies defects like syntax errors in the code, missing requirements and design defects. But dynamic testing is performed in the validation stage. So it uses several techniques to identify defects like if the variables are not constant or the output is meeting the expected standards. 4. Testing Techniques: The testing techniques used for static and dynamic testing also vary. Static testing normally used certain techniques to prevent defects by verifying the process. So it uses techniques like informal and technical reviews, walkthrough, inspection and static code review. But dynamic testing uses several techniques to identify and fix defects in the application, while doing validation process. Therefore, dynamic testing uses techniques like unit testing, system testing and integration testing. 5. Coverage: Normally, static testing can be carried out before compilation. But dynamic testing can be done only after compilation and linking. Also, each type of testing will cover different aspects of the software. Static testing will provide structural and statement coverage to improve quality through reviews and comments. At the same time, dynamic testing will cover the executable file of the code to identify and fix all types of bugs. 6. ROI: Unlike dynamic testing, static testing is performed in the early stages of development. Therefore, static testing is considered to be more cost-efficient in comparison to dynamic testing. The static testing techniques are further considered to get higher return on investment (ROI) as no test automation tools are required. However, static testing requires more meeting and manual efforts in comparison to dynamic testing. An effective software application testing strategy must include the static as well as dynamic testing methodologies to improve software quality. The static testing methods can be used to for the purpose of verification, whereas the dynamic testing methods will involve validation. We provide software testing services. If you would like to hire software test professionals from us, we would be glad to assist you at Mindfire Solutions.
Mind Mapping in Software Testing- Ways to Make Testing More Fun
Mind mapping is indeed an excellent way of enjoying the process of testing software. Mind map is basically a visual representation of the concepts or ideas related to a subject. The process involves a logical as well as creative way of taking notes and using symbols, mind shapes, words, colours, images and lines. Mind mapping in any field or on any subject is carried out with the intention of structuring the information, analysing and understanding the requirements along with that of encompassing all the data comprehensively.
The particular procedure in software testing calls for an altogether different story. When it comes to software testing, it is not just about the years of experience but more about how your mind interprets a particular product. The process, in this case, therefore, helps in solving problems, representing ideas in a structural manner, planning team activities, compressing material into a desired format and finally keeping track of the team activities too. Requirements for Mind Mapping Testing involves a large area with each of its phases having their respective methods plus terminologies. The application of the process in testing of software is determined by the choices and preferences of the individuals. However, the procedure starts off with a collection of the following data:
The name of the release along with its date
All the requirements and their respective numbers
The names of the requirements along with the program category under which they come
The charge codes offered to these requirements
The details of the testing team for situations when these are needed and asked for
The names of the developer, the development lead, the manager and so on
Details about analyst to get clarified ideas about the requirements
Each and every credential and link that help in accessing the details
The map that you can create can be for test planning, software testing interaction as well as testing types. Steps Involved in Mind Mapping Start off with the process with a blank paper, coloured pens and a lot of imagination. Here is a list of steps through which the procedure can take place in the most effective manner:
Begin at the centre of a blank page as, this allows your brain to move in all other directions rather freely.
Emphasis on images as they can express things better than several words put together.
Keep using colours, which add an extra dose of vibrancy to the planning. Using colours also makes everything more creative in nature.
Connect the primary branches to the central image while the secondary ones to the second levels respectively. The connection part will enable remembering things easily as well.
Include curved branches instead of straight lines only for the simple reason that straight lines can be boring or monotonous.
To render your output with higher flexibility, use single keywords in every line. Never go for keyword stuffing as, that can lead to much confusion.
Effective association of ideas can be of real help, as it not only determines the software quality but also helps in solving issues that could have created troubles in the long run. As such, the process successfully assists in creating test cases, managing general reports as well as automation test scripts. It also enables almost perfect team management. Mind mapping can be done in any particular phase of the test process and it will pave the way for trustworthy results. While doing software regression testing, it is not without reason that enterprises are resorting to this theory in software testing while professionals are concentrating more on this process of executing tests along with the others. We provide qa testing services. If you would like to get your application tested by our certified automation testers, please contact us at Mindfire Solutions.
