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Softwaretestning

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  • af Lucjan Stapp
    522,95 kr.

    This book is aimed at everyone preparing for the ISTQB® Certified Tester ¿ Foundation Level exam based on the Foundation Level syllabus (version 4.0) published in 2023. It provides candidates with reliable knowledge based on this document and thus distinguishes itself from all the information about ISTQB® syllabi and exams on the Internet, which is often of rather poor quality and may even contain serious errors. The book expands and details many issues that are described in the new 2023 version of the syllabus in a perfunctory or general way only. According to the ISTQB® guidelines for syllabus-based training, an exercise must be provided for each learning objective at the K3 level, and a practical example must be provided for each objective at the K2 or K3 level. In order to satisfy these requirements, the authors prepared numerous exercises and examples for all learning objectives at these levels. In addition, for each learning objective, one or more sample exam questions are presented which are similar to those that the candidate will see in the exam. This makes the book an excellent aid for studying and preparing for the exam and verifying acquired knowledge.

  • af Rob Botwright
    368,95 kr.

    ¿¿¿¿ Introducing the Ultimate Application Design Book Bundle! ¿¿¿¿Are you ready to take your application design skills to the next level? Dive into the world of data-intensive app systems with our comprehensive book bundle, "Application Design: Key Principles for Data-Intensive App Systems." ¿¿¿¿¿¿¿¿¿¿¿¿ Book 1 - Foundations of Application Design: Lay the groundwork for success with an introduction to key principles for data-intensive systems. From data modeling basics to architecture patterns, this volume sets the stage for mastering application design.¿¿¿¿ Book 2 - Mastering Data-Intensive App Architecture: Elevate your skills with advanced techniques and best practices for architecting data-intensive applications. Explore distributed systems, microservices, and optimization strategies to build scalable and resilient systems.¿¿¿¿ Book 3 - Scaling Applications: Learn essential strategies and tactics for handling data-intensive workloads. Discover performance optimization techniques, cloud computing, and containerization to scale your applications effectively.¿¿¿¿ Book 4 - Expert Insights in Application Design: Gain valuable insights from industry experts and thought leaders. Explore cutting-edge approaches and innovations shaping the future of data-intensive application development.With a combined wealth of knowledge, these four books provide everything you need to succeed in the fast-paced world of application design. Whether you're a seasoned professional or just starting your journey, this bundle is your roadmap to success. ¿¿¿¿¿¿¿¿¿¿¿¿¿ Don't miss out on this opportunity to master application design and unlock new possibilities in your career. Get your hands on the "Application Design: Key Principles for Data-Intensive App Systems" book bundle today! ¿¿¿¿¿¿¿¿

  • af Adam Tornhill
    423,95 kr.

    Jack the Ripper and legacy codebases have more in common than you'd think. Inspired by forensic psychology methods, you can apply strategies to identify problems in your existing code, assess refactoring direction, and understand how your team influences the software architecture. With its unique blend of criminal psychology and code analysis, Your Code as a Crime Scene arms you with the techniques you need to take on any codebase, no matter what programming language you use. Software development might well be the most challenging task humanity ever attempted. As systems scale up, they also become increasingly complex, expensive to maintain, and difficult to reason about. We can always write more tests, try to refactor, and even fire up a debugger to understand complex coding constructs. That's a great starting point, but you can do so much better. Take inspiration from forensic psychology techniques to understand and improve existing code. Visualize codebases via a geographic profile from commit data to find development hotspots, prioritize technical debt, and uncover hidden dependencies. Get data and develop strategies to make the business case for larger refactorings. Detect and fix organizational problems from the vantage point of the software architecture to remove bottlenecks for the teams. The original Your Code as a Crime Scene from 2014 pioneered techniques for understanding the intersection of people and code. This new edition reflects a decade of additional experience from hundreds of projects. Updated techniques, novel case studies, and extensive new material adds to the strengths of this cult classic. Change how you view software development and join the hunt for better code! What You Need: You need to be comfortable reading code. You also need to use Git (or Subversion, Mercurial or similar version-control tool).

  • af Dmitry Vostokov
    1.067,95 kr.

    Analyze system crashes and freezes, navigate kernel and complete memory spaces, and diagnose patterns of abnormal software behavior using the WinDbg debugger.

  • af Dmitry Vostokov
    1.062,95 kr.

    Analyze crashes and freezes, navigate through user space and diagnose heap corruption, memory and handle leaks, CPU spikes, blocked threads, deadlocks, wait chains, and more using WinDbg debugger.

  • af Antonio Colmenar-Santos
    1.615,95 kr.

    This book evaluates the contributions of the electronic control unit software of an electric vehicle on sustainability and society, such as the reduction of emissions during a product design and the improvements in the vehicle.A sustainable transport model is proposed, demonstrating its economic viability. By validating software in a more efficient way and adding new functionalities to the software to enhance driving efficiency, energy consumption can be significantly reduced. Therefore, software validation and development have a significant impact on sustainability. This book offers innovative validation solutions based on artificial intelligence techniques to reduce validation time and emissions.The impact of driving efficiency on sustainable transport models is studied in detail, making proposals to be considered in the current environmental policies under discussion within the European Union in order to improve the sustainability of transport models.Vehicles are becoming sophisticated electronic systems due to the fact that they are integrating a significant number of electronic control units. This trend will certainly continue in the year to come. Consequently, software validation techniques are a key element for car manufacturers in order to ensure the quality of the vehicle. This book contributes to these efforts.

  • af Dmitry Vostokov
    812,95 kr.

    A pattern language to cover from a small debugging trace to a distributed log with billions of messages from hundreds of computers, thousands of components, threads, and processes.

  • af Jon M. Quigley
    1.277,95 kr.

    Created to elevate expertise in testing, verification, and validation with industry-specific terminology, readers are empowered to navigate the complex world of quality assurance. From foundational concepts to advanced principles, each entry provides clarity and depth, ensuring the reader becomes well-versed in the language of precision.This dictionary is an indispensable companion for both professionals and students seeking to unravel the nuances of testing methodologies, verification techniques, and validation processes. Readers will be equipped with the tools to communicate effectively, make informed decisions, and excel in projects. In addition, references to SAE Standards are included to direct the read to additional information beyond a practical definition.

  • af Qing Wang
    1.055,95 - 1.319,95 kr.

    In an article for Wired Magazine in 2006, Jeff Howe defined crowdsourcing as an idea for outsourcing a task that is traditionally performed by a single employee to a large group of people in the form of an open call. Since then, by modifying crowdsourcing into different forms, some of the most successful new companies on the market have used this idea to make people's lives easier and better. On the other hand, software testing has long been recognized as a time-consuming and expensive activity. Mobile application testing is especially difficult, largely due to compatibility issues: a mobile application must work on devices with different operating systems (e.g. iOS, Android), manufacturers (e.g. Huawei, Samsung) and keypad types (e.g. virtual keypad, hard keypad). One cannot be 100% sure that, just because a tested application works well on one device, it will run smoothly on all others.Crowdsourced testing is an emerging paradigm that can improve the cost-effectiveness of software testing and accelerate the process, especially for mobile applications. It entrusts testing tasks to online crowdworkers whose diverse testing devices/contexts, experience, and skill sets can significantly contribute to more reliable, cost-effective and efficient testing results. It has already been adopted by many software organizations, including Google, Facebook, Amazon and Microsoft. This book provides an intelligent overview of crowdsourced testing research and practice. It employs machine learning, data mining, and deep learning techniques to process the data generated during the crowdsourced testing process, to facilitate the management of crowdsourced testing, and to improve the quality of crowdsourced testing.

  • af Maximiliano Contieri
    523,95 kr.

    "Software engineers and architects who work with large, complex code bases need to scale and maintain them effectively. With this cookbook, author Maximiliano Contieri takes you beyond the concept of clean code by showing you how to identify improvement opportunities and assess their impact on production code. When it comes to reliability and system evolution, these techniques provide benefits that pay off over time. Using real-world examples in JavaScript, PHP, Python, Java, and many other programming languages, this cookbook provides proven recipes to help you scale and maintain large systems. Every section covers fundamental concepts including readability, coupling, testability, security, and extensibility, as well as code smells and the corresponding recipes to address them"--Page 4 of cover.

  • af Thiadmer Riemersma
    572,95 kr.

    The "Black Magic Probe" is a debug probe for ARM Cortex microcontrollers, supporting SWD and JTAG. What sets it apart from other debug probes is that it directly supports the Remote Server Protocol of GDB (also used by LLDB and other debugging and development tools). This quashes the need for additional middleware, services or drivers, and thereby makes the software/hardware toolchain simpler, more portable and more reliable.What you can do with the Black Magic Probe is:¿ Download code into Flash ROM or RAM of the microcontroller.¿ Step through code, look at a backtrace of the call stack.¿ Set up to six breakpoints in Flash ROM (as well as unlimited breakpoints in RAM).¿ Set up to four data watchpoints, to check for data reads or writes.¿ Inspect and modify variables, memory and registers.¿ Run the code and follow it with real-time tracing.¿ Profile your code, to gain insight in where it spends its cycles.This book focuses on the original Black Magic Probe, but it also covers a few "open hardware" variants - such as the ctxLink probe, which offers truly remote debugging, due to its Wi-Fi interface and rechargeable battery.

  • af Alex Rodov
    352,95 kr.

    More than ever, we depend on software to get through our everyday lives. It's embedded in our smartphones, cars, children's toys, and household appliances (even our toasters), and it's transforming our world. This brave new world of technology offers exciting opportunities, but it has never been more important that we recognize and understand the risks to our security and safety. When software goes bad, the consequences can range from the farcical (such as the HealthCare.gov fiasco, in which a highly-touted government website crashed almost immediately upon being launched) to the tragic (as in the case of the Arizona woman who was killed by a self-driving car that didn't recognize her as a pedestrian).Testing is our line of defence against these software-related catastrophes. Yet, for years, it was seen as an afterthought-a chore that developers only carried out because they had to, and which they tried to complete as cheaply and quickly as possible.In The Book on Testing, Alex Rodov leads the reader on a personal and informal tour of the software-testing landscape, focusing on what happens when it isn't done properly. In easy-to-understand language, he offers real-life examples, as well as insights gained from decades of experience, to demonstrate why it doesn't have to be that way. Testing is difficult and can never be perfect. But if it's done well, we'll all be able to sleep better at night.

  • af Noemí Ferrera
    432,95 kr.

    End-to-end solutions and options for test architecture and methodologies. Achieve better quality and faster projects in an enjoyable way taking your career to the next level.Key Features:- Explore the full test architecture spectrum- Discover a range of challenging automation applications with real-world scenarios- Learn with easy-to-follow start-up examples including DevOps for testing, AI, XR, and cloudBook Description:From simple websites to complex applications, delivering quality is crucial for achieving customer satisfaction. How to Test a Time Machine provides step-by-step explanations of essential concepts and practical examples to show you how you can leverage your company's test architecture from different points in the development life cycle.You'll begin by determining the most effective system for measuring and improving the delivery of quality applications for your company, and then learn about the test pyramid as you explore it in an innovative way. You'll also cover other testing topics, including cloud, AI, and VR for testing.Complete with techniques, patterns, tools, and exercises, this book will help you enhance your understanding of the testing process. Regardless of your current role within development, you can use this book as a guide to learn all about test architecture and automation and become an expert and advocate for quality assurance.By the end of this book, you'll be able to deliver high-quality applications by implementing the best practices and testing methodologies included in the book.What You Will Learn:- Identify quality maturity and processes to get your product to the next quality level- Learn how to think out of the box for testing- Learn about types of tests and how to apply them from a unique perspective- Understand how to apply different technologies into testing- Cool code exercises and tools that could be of use for practicing and polishing your testing skills- Own quality and use it for career growthWho this book is for:This book is for test owners, developers, managers, manual QAs, SDETS, team leads, and systems engineers who wish to get started or improve the current QA systems. Test owners looking for inspiration and out-of-the-box solutions for challenging issues will also find this book useful.Table of Contents- Introduction - Finding Your QA Level- The Secret Passages of the Test Pyramid - The Base of the Pyramid- The Secret Passages of the Test Pyramid -- The Middle of the Pyramid- The Secret Passages of the Test Pyramid - The Top of the Pyramid- Testing Automation Patterns- Continuous Testing - CI/CD and Other DevOps Concepts You Should Know- Mathematics and Algorithms in Testing- Artificial Intelligence is the New Intelligence- Having Your Head up in the Clouds- Traveling Across Realities- How to Test a Time Machine (and Other Hard-to-Test Applications)- Taking Your Testing to the Next Level- Appendix - Self-Assessment

  • af Linda Westfall
    1.622,95 kr.

    This handbook contains information and guidance that supports all of the topics of the 2016 version of the CSQE Body of Knowledge (BoK) upon which ASQ's Certified Software Quality Engineer/(CSQE) exam is based. Armed with the knowledge presented in this handbook to complement the required years of actual work experience, qualified software quality practitioners may feel confident they have taken appropriate steps in preparation for the ASQ CSQE exam.However, the goals for this handbook go well beyond it being a CSQE exam preparation guide. Its author designed this handbook not only to help the software quality engineers, but as a resource for software development practitioners, project managers, organizational managers, other quality practitioners, and other professionals who need to understand the aspects of software quality that impact their work. It can also be used to benchmark their (or their organization's) understanding and application of software quality principles and practices against what is considered a cross-industry good practice baseline. After all, taking stock of strengths and weaknesses, software engineers can develop proactive strategies to leverage software quality as a competitive advantage.New software quality engineers can use this handbook to gain an understanding of their chosen profession. Experienced software quality engineers can use this handbook as a reference source when performing their daily work. It is also hoped that trainers and educators will use this handbook to help propagate software quality engineering knowledge to future software practitioners and managers. Finally, this handbook strives to establish a common vocabulary that software quality engineers, and others in their organizations can use to communicate about software and quality. Thus increasing the professionalism of the industry and eliminating the wastes that can result from ambiguity and misunderstandings.

  • af Alejandra Quetzalli
    359,95 kr.

    Investing in engineering documentation (Docs) means investing in community user experience. This book teaches readers how mastering the docs-as-code ecosystem empowers communities to understand better their favorite products and Open-Source (OSS) technologies better.Author Alejandra Quetzalli believes that ¿docs-as-ecosystem¿ represents a more comprehensive and collaborative approach to documentation development than ¿docsas- code¿ because it recognizes that documentation is more than just code. Docs involve technical writing, design, community feedback, community management, accessibility, SEO, UX, and today¿ even Artificial Intelligence tools! The word ecosystem promotes a paradigm where we treat documentation as a complex and dynamic system that must be managed and nurtured.In this book, yoüll acquire practical skills such as creating public style guides, incorporating responsive and accessible design, designing user flows and information architecture, retrieving user feedback, and setting up Docs analytics. Yoüll learn to identify the difference in work processes between maintaining Docs for a product versus an OSS technology. Yoüll discover the secrets to managing technical writers and OSS contributions, all while building a thriving Docs community. To end on a futuristic note, yoüll discover why technical writers who harness Artificial Intelligence (AI) tools (i.e., ChatGPT) need not fear a robot uprising anytime soon. What You'll LearnExamine accessibility and the user experienceUnderstand Information architecture Review docs-as-ecosystem processes Manage technical writersOversee OSS Docs contributions Retrieve and integrate user feedback Build Docs and Education communities Who This Book is ForDevelopers of all levels, VPs of Product/Engineering, Product Managers, and Designers,

  • af Manikandan Sambamurthy
    432,95 kr.

    Understand test automation and implement it in Web, Mobile, and APIs effectivelyKey Features:Learn how to automate your tests with the help of practical examplesUnderstand how to bridge the gap between testing and test automationExplore test automation strategies for different platformsBook Description:This book helps you build a better understanding of test automation and aids in bridging the gap between testing and test automation.The book has been divided into three sections with the first section focusing on preparing you for testing and test automation fundamentals. By the end of this section, you'll have an understanding of some common automation terms, definitions, and roles. The second section covers the practical implementation of test automation for mobile, web, API and performance. The third section will help you understand how test automation works with CI/CD, and explore the common issues and pitfalls when executing test automation.By the end of this book, you'll have a better understanding of automation, addressing the common pain points and best practices around test automation.What You Will Learn:Gain a solid understanding of test automationUnderstand how automation fits into a test strategyExplore essential design patterns for test automationDesign and implement highly reliable automated testsUnderstand issues and pitfalls when executing test automationDiscover the commonly used test automation tools/frameworksWho this book is for:This book is for manual testers who want to enter the field of test automation and developers who want to learn more about test automation.

  • af Daniel Irvine
    547,95 kr.

    Learn to write better automated tests that will dramatically increase your productivity and have fun while doing so. This book is a build-your-own adventure designed for individual reading and for collaborative workshops. You will build an xUnit automated test framework using JavaScript: initially a clone of Jest, but adding a couple of neat features borrowed from RSpec, the genre-defining tool for behavior-driven development (BDD). Along the way, you will explore the philosophy behind automated testing best practices. The automated test runner is one of the most important innovations within software engineering. But for many programmers, automated testing remains a mystery, and knowing how to write good tests is akin to sorcery.As the chapters of this book unfold, you will see how the humble test runner is an elegant and simple piece of software. Each chapter picks a single feature to build, like the "it" function or the "beforeEach" block. It picks apart the theory of why the feature needs to exist, and how to use it effectively in your own test suites. Every chapter ends with a set of ideas for extension points should you wish to explore further, alone or in groups. The book culminates in an implementation of test doubles and mocks¿one of the most difficult and misunderstood concepts within automated testing.By the end of the book, you will have gained a solid understanding of automated testing principles that you can immediately apply to your work projects. What You'll LearnBuild an xUnit automated test frameworkSee how an automated test runner worksUnderstand the best practices for automated unit testingEffectively use test doubles and mocksWho This Book Is ForSoftware developers with JavaScript experience who are seeking to master the art of automated testing.

  • af Simon Amey
    487,95 kr.

  • af Reto Scheiwiller
    412,95 kr.

  • af Shai Almog
    602,95 kr.

    Overhaul your debugging techniques and master the theory and tools needed to debug and troubleshoot cloud applications in production environments. This book teaches debugging skills that universities often avoid, but that typically consume as much as 60% of our time as developers. The book covers the use of debugger features such as tracepoints, object marking, watch renderers, and more. Author Shai Almog presents a scientific approach to debugging that is grounded in theory while being practical enough to help you to chase stubborn bugs through the maze of a Kubernetes deployment.Practical Debugging at Scale assumes a polyglot environment as is common for most enterprises, but focuses on JVM environments. Most of the tooling and techniques described are applicable to Python, Node, and other platforms, as well as to Java and other JVM languages. The book specifically covers debugging in production, an often-neglected discipline but an all too painful reality. Yoüll learn modern techniques around observability, monitoring, logging, and full stack debugging that you can put to immediate use in troubleshooting common ailments in production environments. You Will Learn:The scientific method underlying the process of debuggingDebugger capabilities such as tracepoints and marker objectsThe correct use of less understood features such as exception breakpointsTechniques for tracing issues in production Kubernetes environmentsObservability and monitoring to resolve production problemsIndustry best practices for common tooling such as logging Profiling to understand performance and memory problems Who This Book Is ForDevelopers in Java and JVM-related languages who want to improve their debugging skills and production reliability;and developers of cloud applications who are facing the pain of production bugs that are hard to replicate and fix

  • af Jeffrey Strickland
    977,95 kr.

  • af David Sweet
    524,95 kr.

    Learn how to evaluate the changes you make to your system and ensure that your testing does not undermine revenue or other business metrics. Experimentation for Engineers: From A/B testing to Bayesian optimization delivers a toolbox of processes for optimising software systems. From learning the limits of A/B testing to advanced experimentation strategies involving machine learning and probabilistic methods, this practical guide will help you master the skills. It will also help you minimise the costs of experimentation and will quickly reveal which approaches and features deliver the best business results. What's inside Design, run, and analyse an A/B test Break the "feedback loops" caused by periodic retraining of ML models Increase experimentation rate with multi-armed bandits Tune multiple parameters experimentally with Bayesian optimisation About the reader For ML and software engineers looking to extract the most value from their systems. Examples are found in Python and NumPy.

  • af Lev Gelfenbuim
    332,95 kr.

    Perform fast, easy and reliable cross-browser testing with practical demonstrations KEY FEATURES ¿ Access to Visual testing, Cypress Studio, GitHub Actions, and the Cypress Dashboard.¿ Simple and practical illustrations on using Docker images, CI/CD pipelines and headless Cypress test runner.¿ Examples and solutions on using Cucumber for cross-browser and cross-platform testing. DESCRIPTION "Web Testing with Cypress" teaches you to test web apps on any browser or platform with zero environment setup in a developer-friendly, end-to-end web testing environment.When you read this book, you'll be able to create, run and debug test automation scripts in Javascript without wasting any time. You will execute tests in real-time while you create your applications and begin troubleshooting. You will work on Cucumber + TDD/BDD integration, CI testing, Cypress Dashboard, GitHub Actions, and Cypress Docker Images. Advanced topics such as running sequential and parallel tests, load balancing, cross-platform testing and Cypress-Driven Development are also trained in this book. While you master in writing automated tests, you'll also learn about Cypress' time travel, real-time reloads, pictures and videos, network traffic control, and live debugging features.As you progress through the book, you'll learn about cutting-edge testing methodologies, such as test-driven development (TDD), sanity testing (SST), and left shift testing (LTST). It also includes case studies and easy demos for non-technical users to help them write scripts in simple language to undertake application testing.WHAT YOU WILL LEARN¿ Explore Cypress capabilities, including forms, elements, action fields, and Cypress Studio.¿ Learn to write and run automated cross-browser and cross-platform tests.¿ Execute Sequential and Parallel testing, Shift Left testing, and Sanity testing.¿ Make use of GitHub Actions, Cypress Dashboard, Cucumber, and NodeJS.¿ Write test code, run CI testing and record test results.WHO THIS BOOK IS FORThis book is for Test Automation Engineers, QA professionals, Web Developers, and anyone who wants to test their web apps from start to finish with automation. This book assumes no prior knowledge of Cypress or testing concepts.

  • af Heady Delpak
    340,95 kr.

    The rotary-wing platform, lagging behind fixed-wing due to comparatively greater technological challenges, provided remarkably alluring options to the commander on the battlefield, ever thirsting for a high vantage point, speed of maneuvering and the flexibility of quick redeployment. Vietnam, Korea and Iraq as also several other military conflicts, helped the helicopter to mature from casualty evacuation to increasingly more offensive tasks such as attack, anti-tank, suppression of enemy air defenses, reconnaissance and observation, airlift of troops, cargo resupply and fire fighting.

  • af Javascript
    445,95 kr.

    The art of unit testing is more than just learning the right collection of tools and practices. It's about understanding what makes great tests tick, finding the right strategy for each unique situation, and knowing what to do when the testing process gets messy. This book delivers insights and advice that will transform the way you test your software. The art of unit testing, third edition shows you how to create readable and maintainable tests. It goes well beyond basic test creation into organization-wide test strategies, troubleshooting, working with legacy code, and "merciless" refactoring. You'll love the practical examples and familiar scenarios that make testing come alive as you read. This third edition has been updated with techniques specific to object-oriented, functional, and modular coding styles. The examples use JavaScript.

  • af Manfred Baumgartner
    422,95 kr.

    Concepts, methods, and techniques - supported with practical, real-world examples The first book to cover the ISTQB® Certified Test Automation Engineer syllabus With real-world project examples Suitable as a textbook, as a reference book for ISTQB ® training courses, and for self-study This book provides a complete overview of how to design test automation processes and integrate them into your organization or existing projects. It describes functional and technical strategies and goes into detail on the relevant concepts and best practices. The book's main focus is on functional system testing. Important new aspects of test automation, such as automated testing for mobile applications and service virtualization, are also addressed as prerequisites for creating complex but stable test processes. The text also covers the increase in quality and potential savings that test automation delivers. The book is fully compliant with the ISTQB® syllabus and, with its many explanatory examples, is equally suitable for preparation for certification, as a concise reference book for anyone who wants to acquire this essential skill, or for university-level study.

  • af Narayanan Palani
    452,95 kr.

    This book explains the steps necessary to write manual accessibility tests and convert them into automated selenium-based accessibility tests to run part of regression test packs. If you are searching a topic on Google or buying a product online, web accessibility is a basic need. If a web page is easier to access when using a mouse and complex to navigate with keyboard, this is extremely difficult for users with disabilities. Web Accessibility Testing is a most important testing practice for customers facing web applications. This book explains the steps necessary to write manual accessibility tests and convert them into automated selenium-based accessibility tests to run part of regression test packs. WCAG and Section 508 guidelines are considered across the book while explaining the test design steps. Software testers with accessibility testing knowledge are in high demand at large organizations since the need to do manual and automated accessibility testing is growing rapidly. This book illustrates the types of accessibility testing with test cases and code examples.

  • af Scottie Crump
    397,95 kr.

    A fast-paced, practical guide to helping you leverage React Testing Library to test the DOM output of componentsKey Features:Get to grips with React Testing Library and create tests that don't break with changes in implementationLearn how to put RTL into practice by implementing it in real-world scenariosTest apps to be more accessible and ensure your tests will work with actual DOM nodesBook Description:React Testing Library (RTL) is a lightweight and easy-to-use tool for testing the document object model (DOM) output of components. This book will show you how to use this modern, user-friendly tool to test React components, reducing the risk that your application will not work as expected in production.The book demonstrates code snippets that will allow you to implement RTL easily, helping you to understand the guiding principles of the DOM Testing Library to write tests from the perspective of the user. You'll explore the advantages of testing components from the perspective of individuals who will actually use your components, and use test-driven development (TDD) to drive the process of writing tests. As you advance, you'll discover how to add RTL to React projects, test components using the Context API, and also learn how to write user interface (UI) end-to-end tests using the popular Cypress library. Throughout this book, you'll work with practical examples and useful explanations to be able to confidently create tests that don't break when changes are made.By the end of this React book, you will have learned all you need to be able to test React components confidently.What You Will Learn: Explore React Testing Library and its use casesGet to grips with the RTL ecosystemApply jest-dom to enhance your tests using RTLGain the confidence you need to create tests that don't break with changes using RTLIntegrate Cucumber and Cypress into your test suiteUse TDD to drive the process of writing testsApply your existing React knowledge for using RTLWho this book is for:This book is for software engineers, quality engineers and React developers who want to learn about modern practices used for testing React components using the latest testing tool, RTL. Basic knowledge of React development is required to get the most out of this book.

  • af Laurentiu Spilca
    610,95 kr.

    How To Read Java: Understanding, debugging, and optimizing JVM applications teaches you how to better understand Java application code. It's filled with code investigation techniques for tricky issues like uncovering glitches in code logic or locating intermittent runtime problems. Armed with these tools and practices you'll save time whenever you need to identify performance issues, understand dependencies, discover the root cause of crashes, or interpret unexpected results. Whether you're a senior software engineer or you're just getting started, this invaluable guide will help you in the fundamental task of understanding how your applications work. For intermediate Java developers.

  • af Andreas Spillner
    422,95 kr.

    Fundamental knowledge and basic experience - brought through practical examples Thoroughly revised and updated 5th edition, following upon the success of four previous editions Updated according to the most recent ISTQB® Syllabus for the Certified Tester Foundations Level (2018) Authors are among the founders of the Certified Tester Syllabus Professional testing of software is an essential task that requires a profound knowledge of testing techniques. The International Software Testing Qualifications Board (ISTQB®) has developed a universally accepted, international qualification scheme aimed at software and system testing professionals, and has created the Syllabi and Tests for the Certified Tester. Today about 673,000 people have taken the ISTQB® certification exams. The authors of Software Testing Foundations, 5th Edition, are among the creators of the Certified Tester Syllabus and are currently active in the ISTQB®. This thoroughly revised and updated fifth edition covers the Foundation Level (entry level) and teaches the most important methods of software testing. It is designed for self-study and provides the information necessary to pass the Certified Tester-Foundations Level exam, version 2018, as defined by the ISTQB®. Topics covered: Fundamentals of Testing Testing and the Software Lifecycle Static and Dynamic Testing Techniques Test Management Test Tools

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