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JUnit 5 Fundamentals

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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JUnit 5 Unit Testing Dynamic Tests Parameterized Tests Test Extensions Code Coverage Java

What's inside

Syllabus

Course Overview

Introducing JUnit 5

Writing Tests

Creating Dynamic and Parameterized Tests

Traffic lights

Read about what's good

what should give you pause

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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Reviews summary

Mastering junit 5 fundamentals for java developers

According to learners, this course offers a largely positive and comprehensive introduction to JUnit 5. Students praise the instructor's clear explanations and engaging teaching style, making complex topics accessible. The course provides practical, hands-on examples and real-world demos that are immediately applicable to development projects. While some experienced developers found it to be more of a fundamental overview, most new and intermediate learners found the coverage of topics like dynamic and parameterized tests, extensions, and migration from JUnit 4 to be extremely valuable and well-structured.

Helps users transition smoothly from JUnit 4 to JUnit 5.

"Migrating from JUnit 4 was a breeze after this."

"I particularly valued the section on migrating from JUnit 4, which was directly relevant to my current project."

"This course provided exactly what I needed to upgrade my existing JUnit 4 tests to the new JUnit 5 standard."

Provides a strong foundation in core JUnit 5 concepts.

"Good introduction to JUnit 5. I found the sections on extensions and code coverage particularly useful for my daily work."

"Solid course on JUnit 5 fundamentals. I learned a lot about dynamic tests and how to structure my test code better."

"This course covers everything from basics to advanced features like extensions. Really a must-have for Java developers."

Focuses on real-world application with practical examples and demos.

"The hands-on demos were perfect for grasping concepts quickly. I especially liked the real-world examples provided."

"Highly practical and immediately applicable to real-world projects. Hands-on coding exercises were great."

"I really appreciate how the course dives deep but keeps it practical."

Instructor provides concise, easy-to-understand explanations.

"Absolutely fantastic! The instructor's explanations were incredibly clear, especially on parameterized and dynamic tests."

"Excellent course! Clear explanations, practical examples, and well-paced. The instructor made complex topics easy to understand."

"The instructor is knowledgeable, and the content is well-structured. I particularly valued the section on migrating from JUnit 4."

Content is more suited for beginners than experienced testers.

"It covers the fundamentals well, but for someone with prior testing experience, it might feel a bit basic. Good for beginners though."

"The course is generally good for beginners. I have some experience with JUnit 4 and was hoping for more depth on advanced features."

"I was hoping for more advanced topics or debugging strategies. It just scratches the surface in some areas."

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

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Refresh your understanding of the basics of JUnit 4 to provide a solid foundation for learning JUnit 5.

Browse courses on JUnit 4

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Read through the JUnit 4 documentation
Create a simple JUnit 4 test case

Write unit tests for Java methods

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Solidify your understanding of writing unit tests in JUnit 5 by practicing with different Java methods.

Browse courses on Unit Testing

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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

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Gain insights and exchange ideas with peers by discussing best practices for writing effective unit tests in JUnit.

Browse courses on JUnit

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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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Explore advanced JUnit 5 features

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Expand your knowledge of JUnit 5 by exploring its advanced features, such as extensions and parameterization.

Browse courses on JUnit 5

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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

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Apply your knowledge of JUnit 5 by creating a custom testing framework for your own Java project.

Browse courses on JUnit

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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

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Make a meaningful contribution to the JUnit 5 open-source project to deepen your understanding of its inner workings.

Browse courses on JUnit

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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 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.

See salaries and explore the career path for Software Developer

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.

See salaries and explore the career path for Software Engineer

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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

CLEAN CODE

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Provides a set of principles and practices for writing clean and maintainable code.

The Art of Unit Testing, Third Edition

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Classic guide to unit testing. It covers a wide range of topics, from the basics to advanced techniques such as mocking and stubbing.

The Art of Unit Testing, Third Edition: with...

Paperback

The Art of Unit Testing, Third Edition: with...

Kindle Edition

Effective Java (3rd Edition)

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Provides a set of guiding principles and best practices for writing effective Java code, helping you to write more reliable, maintainable, and performant code.

Effective Java (3rd Edition)

Paperback

Check price

Effective Java (3rd Edition)

Kindle Edition

Check price

Refactoring

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Classic guide to test-driven development (TDD), a software development approach that encourages writing tests before writing code.

Refactoring: Improving the Design of Existing Code

Hardcover

Test-driven Development

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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.

Test Driven Development: A Practical Guide (Coad)

Paperback

$$$

The Pragmatic Programmer

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Classic guide to software development principles and best practices, helping you to write more maintainable, reliable, and performant code.

The Pragmatic Programmer: Your Journey To Mastery,...

Hardcover

Pragmatic Programmer, The: From Journeyman to Master

Kindle Edition

(Italiano) Pragmatic Programmer - Edizione del 20°...

Kindle Edition

(Italiano) Il Pragmatic Programmer: Guida per manovali del...

Kindle Edition

(中文) The Pragmatic Programmer: access to the highest...

Paperback

Pragmatic programmer (Korean Edition)

Paperback

$$$

The Agile Testing Collection

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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.

Agile Testing Collection, The (Addison-Wesley...

Kindle Edition