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Test-Driven Java Development, Second Edition

You're reading from   Test-Driven Java Development, Second Edition Invoke TDD principles for end-to-end application development

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Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788836111
Length 324 pages
Edition 2nd Edition
Languages
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Authors (2):
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Alex Garcia Alex Garcia
Author Profile Icon Alex Garcia
Alex Garcia
Viktor Farcic Viktor Farcic
Author Profile Icon Viktor Farcic
Viktor Farcic
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Toc

Table of Contents (14) Chapters Close

Preface 1. Why Should I Care for Test-Driven Development? FREE CHAPTER 2. Tools, Frameworks, and Environments 3. Red-Green-Refactor – From Failure Through Success until Perfection 4. Unit Testing – Focusing on What You Do and Not on What Has Been Done 5. Design – If It's Not Testable, It's Not Designed Well 6. Mocking – Removing External Dependencies 7. TDD and Functional Programming – A Perfect Match 8. BDD – Working Together with the Whole Team 9. Refactoring Legacy Code – Making It Young Again 10. Feature Toggles – Deploying Partially Done Features to Production 11. Putting It All Together 12. Leverage TDD by Implementing Continuous Delivery 13. Other Books You May Enjoy

Unit-testing frameworks

In this section, two of the most used Java frameworks for unit testing are shown and briefly commented on. We will focus on their syntax and main features by comparing a test class written using both JUnit and TestNG. Although there are slight differences, both frameworks offer the most commonly used functionalities, and the main difference is how tests are executed and organized.

Let's start with a question. What is a test? How can we define it?

A test is a repeatable process or method that verifies the correct behavior of a tested target in a determined situation with a determined input expecting a predefined output or interactions.

In the programming approach, there are several types of tests depending on their scope—functional tests, acceptance tests, and unit tests. Further on, we will explore each of those types of tests in more detail...

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