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Esteban Herrera

This course will teach you how to write unit tests with JUnit 5, covering topics like why unit tests are important, the structure of good unit tests, dynamic and parameterized tests, extensions, code coverage, and more.

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This course will teach you how to write unit tests with JUnit 5, covering topics like why unit tests are important, the structure of good unit tests, dynamic and parameterized tests, extensions, code coverage, and more.

An important part of developing high-quality software is testing. As a developer, you're in charge of unit testing your code, and in Java, JUnit is the most popular framework for this task. In this course, JUnit 5 Fundamentals, you'll learn about unit testing in JUnit 5, if you're familiar with JUnit 4 you'll be introduced to the latest features within the new version. First, you'll explore how to create test cases with the new features of JUnit 5. Next, you'll discover how to use dynamic tests. Finally, you'll cover how to implement extensions to create more maintainable tests. By the end of this course, you'll have the necessary knowledge to create unit tests for your projects in JUnit 5.

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What's inside

Syllabus

Course Overview
Introducing JUnit 5
Writing Tests
Creating Dynamic and Parameterized Tests
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Extending JUnit
Integrating JUnit 5
Migrating from JUnit 4

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Develops understanding of the importance of unit testing for high-quality software development
Provides a solid foundation in JUnit 5, including its latest features and capabilities
Demonstrates how to create and implement unit tests to ensure code quality
Covers topics like dynamic and parameterized tests, extensions, and code coverage, enhancing testing capabilities
Provides hands-on experience through the inclusion of labs and interactive materials
Taught by industry experts with recognized experience in unit testing and Java development

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in JUnit 5 Fundamentals with these activities:
Review JUnit 4 basics
Refresh your understanding of the basics of JUnit 4 to provide a solid foundation for learning JUnit 5.
Browse courses on JUnit 4
Show steps
  • Read through the JUnit 4 documentation
  • Create a simple JUnit 4 test case
Write unit tests for Java methods
Solidify your understanding of writing unit tests in JUnit 5 by practicing with different Java methods.
Browse courses on Unit Testing
Show steps
  • Find a Java library or project with existing code
  • Create unit tests for a few methods in the code
  • Run the tests and debug any failures
Discuss JUnit best practices
Gain insights and exchange ideas with peers by discussing best practices for writing effective unit tests in JUnit.
Browse courses on JUnit
Show steps
  • Join an online forum or community dedicated to JUnit
  • Participate in discussions and ask questions
  • Share your own experiences and insights
Three other activities
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Show all six activities
Explore advanced JUnit 5 features
Expand your knowledge of JUnit 5 by exploring its advanced features, such as extensions and parameterization.
Browse courses on JUnit 5
Show steps
  • Read through the JUnit 5 documentation on extensions
  • Find a JUnit 5 extension library and integrate it into your project
  • Create a custom JUnit 5 extension
Build a JUnit testing framework for your own Java project
Apply your knowledge of JUnit 5 by creating a custom testing framework for your own Java project.
Browse courses on JUnit
Show steps
  • Identify the specific testing needs of your project
  • Design and implement a custom JUnit 5 extension
  • Integrate the framework into your project
  • Write unit tests using your custom framework
Contribute to the JUnit 5 open-source project
Make a meaningful contribution to the JUnit 5 open-source project to deepen your understanding of its inner workings.
Browse courses on JUnit
Show steps
  • Familiarize yourself with the JUnit 5 codebase
  • Identify an area where you can contribute
  • Submit a bug report or feature request
  • Contribute a code patch or improvement

Career center

Learners who complete JUnit 5 Fundamentals will develop knowledge and skills that may be useful to these careers:
Software Engineer
Software Engineers write and test code that is used to create software programs. This course can give Software Engineers the foundational knowledge they need to learn JUnit 5, an important testing tool used by experienced professionals.
Software Developer
Software Developers design, develop, and test software. This course will help Software Developers learn how to write unit tests using JUnit 5, an essential skill for professional software developers.
Software Tester
Software Testers test software products to identify and report defects. This course will help Software Testers learn how to write unit tests using JUnit 5, an essential skill for this role.
Test Engineer
Test Engineers design and execute tests to ensure that software meets its requirements. This course will help Test Engineers learn how to use JUnit 5, a powerful tool for writing and running automated tests.
Quality Assurance Analyst
Quality Assurance Analysts are responsible for testing software to ensure that it is free of defects. This course will help Quality Assurance Analysts learn how to use JUnit 5, an important tool for writing and running automated tests.
Computer Programmer
Computer Programmers write, test, and maintain code used in software programs. This course will help Computer Programmers learn how to use JUnit 5, a popular tool for writing and running automated tests.
Web Developer
Web Developers design and develop websites and web applications. This course will help Web Developers learn how to write unit tests using JUnit 5, an essential skill for professional web developers.
Systems Analyst
Systems Analysts analyze and design computer systems. This course will help Systems Analysts learn how to write unit tests using JUnit 5, a useful skill for this role.
Technical Writer
Technical Writers create documentation that explains technical information. This course may be useful to Technical Writers who need to learn about JUnit 5, a popular testing tool used by software developers.
Data Scientist
Data Scientists use data to solve business problems. This course may be useful to Data Scientists who want to learn more about unit testing, a common practice in software development.
Project Manager
Project Managers plan, execute, and manage software development projects. This course may be useful to Project Managers who need to understand the role of unit testing in software development.
IT Consultant
IT Consultants provide advice and guidance on information technology. This course may be useful to IT Consultants who need to learn more about unit testing, a common practice in software development.
Business Analyst
Business Analysts analyze business needs and develop solutions. This course may be useful to Business Analysts who want to learn more about unit testing, a common practice in software development.
UX Designer
UX Designers design user interfaces for software products. This course may be useful to UX Designers who want to learn more about unit testing, a common practice in software development.
Database Administrator
Database Administrators manage and maintain databases. This course may be useful to Database Administrators who want to learn more about unit testing, a common practice in software development.

Reading list

We've selected nine books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in JUnit 5 Fundamentals.
Provides a set of principles and practices for writing clean and maintainable code.
Classic guide to unit testing. It covers a wide range of topics, from the basics to advanced techniques such as mocking and stubbing.
Provides a set of guiding principles and best practices for writing effective Java code, helping you to write more reliable, maintainable, and performant code.
Classic guide to test-driven development (TDD), a software development approach that encourages writing tests before writing code.
Provides a comprehensive guide to test-driven development (TDD) with Java. It covers the basics of TDD, as well as more advanced topics such as refactoring and continuous integration.
Provides a practical guide to agile testing. It covers a wide range of topics, from the basics of agile testing to more advanced topics such as test-driven development and exploratory testing.
Gentle introduction to unit testing with JUnit, covering the basics of writing and running unit tests.
Classic guide to JUnit, providing a comprehensive overview of the framework and how to use it effectively.

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