Test-Driven Java Development

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Packt Publishing Ltd, 2015 M08 27 - 284 páginas
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Invoke TDD principles for end-to-end application development with Java

About This BookExplore the most popular TDD tools and frameworks and become more proficient in building applicationsCreate applications with better code design, fewer bugs, and higher test coverage, enabling you to get them to market quicklyImplement test-driven programming methods into your development workflowsWho This Book Is For

If you're an experienced Java developer and want to implement more effective methods of programming systems and applications, then this book is for you.

What You Will LearnExplore the tools and frameworks required for effective TDD developmentPerform the Red-Green-Refactor process efficiently, the pillar around which all other TDD procedures are basedMaster effective unit testing in isolation from the rest of your codeDesign simple and easily maintainable codes by implementing different techniquesUse mocking frameworks and techniques to easily write and quickly execute testsDevelop an application to implement behaviour-driven development in conjunction with unit testingEnable and disable features using Feature TogglesIn Detail

Test-driven development (TDD) is a development approach that relies on a test-first procedure that emphasises writing a test before writing the necessary code, and then refactoring the code to optimize it.

The value of performing TDD with Java, one of the most established programming languages, is to improve the productivity of programmers, the maintainability and performance of code, and develop a deeper understanding of the language and how to employ it effectively.

Starting with the basics of TDD and reasons why its adoption is beneficial, this book will take you from the first steps of TDD with Java until you are confident enough to embrace the practice in your day-to-day routine.

You'll be guided through setting up tools, frameworks, and the environment you need, and will dive right in to hands-on exercises with the goal of mastering one practice, tool, or framework at a time. You'll learn about the Red-Green-Refactor procedure, how to write unit tests, and how to use them as executable documentation.

With this book you'll also discover how to design simple and easily maintainable code, work with mocks, utilise behaviour-driven development, refactor old legacy code, and release a half-finished feature to production with feature toggles.

You will finish this book with a deep understanding of the test-driven development methodology and the confidence to apply it to application programming with Java.

Style and approach

An easy-to-follow, hands-on guide to building applications through effective coding practices. This book covers practical examples by introducing different problems, each one designed as a learning exercise to help you understand each aspect of TDD.

 

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Contenido

Why Should I Care for Testdriven Development?
1
Tools Frameworks and Environments
13
RedGreenRefactor from Failure through Success until Perfection
47
Unit Testing Focusing on What You Do and Not on What Has Been Done
77
Design If Its Not Testable Its Not Designed Well
105
Mocking Removing External Dependencies
133
BDD Working Together with the Whole Team
163
Refactoring Legacy Code Making it Young Again
189
Feature Toggles Deploying Partially Done Features to Production
223
Putting It All Together
241
Index
253

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Acerca del autor (2015)

Viktor Farcic is a software architect. He has coded using a plethora of languages, starting with Pascal (yes, he is old), Basic (before it got the Visual prefix), ASP (before it got the.Net suffix) and moving on to C, C++, Perl, Python, ASP.Net, Visual Basic, C#, JavaScript, and so on. He has never worked with Fortran. His current favorites are Scala and JavaScript, even though he works extensively on Java. While writing this book, he got sidetracked and fell in love with Polymer and GoLang. His big passions are test-driven development (TDD), behavior-driven development (BDD), Continuous Integration, Delivery, and Deployment (CI/CD). He often speaks at community gatherings and conferences and helps different organizations with his coaching and training sessions. He enjoys constant change and loves working with teams eager to enhance their software craftsmanship skills. He loves sharing his experiences on his blog, http://TechnologyConversations.com.

Alex Garcia started coding in C++ but later moved to Java. He is also interested in Groovy, Scala, and JavaScript. He has been working as a system administrator and also as a programmer and consultant. He states that in the software industry, the final product quality is the key to success. He truly believes that delivering bad code always means unsatisfied customers. He is a big fan of Agile practices. He is always interested in learning new languages, paradigms, and frameworks. When the computer is turned off, he likes to walk around sunny Barcelona and likes to practice sports.

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