JUnit 5 is a standard framework for unit testing in Java. Released in 2017, JUnit 5 is a major improvement over JUnit 4 and supports a lot of new methods. Many projects have migrated from JUnit 4 to JUnit 5. JUnit 5 is also the default test framework for new projects. JUnit 5 is composed of three sub-projects: JUnit Platform, JUnit Jupiter, and JUnit Vintage. Details of these sub-projects are discussed in the course.
This course first discusses the advantages of JUnit 5 over the previous versions and then jumps directly into tests. The course includes discussion on assertions, assumptions, tagging and filtering, nested tests, dependency injection, repeated tests, parameterized tests, dynamic tests, test instance lifecycle, extension model, JUnit 4 migration, JUnit platform, and test execution order.
By the end of this course, you’ll be deeply familiar with unit testing in JUnit 5. There’s also a little project for you at the end to put your newly acquired skills to the test.
JUnit 5 is a standard framework for unit testing in Java. Released in 2017, JUnit 5 is a major improvement over JUnit 4 and supp...Show More
WHAT YOU'LL LEARN
Familiarity with unit testing in JUnit 5
A deep understanding of life cycle annotations in JUnit 5
The ability to write unit tests in JUnit 5 for a real project
Familiarity with unit testing in JUnit 5
Show more
TAKEAWAY SKILLS
Learning Roadmap
2.
Writing Basic Tests
Writing Basic Tests
Unpack the core of writing test methods, using annotations, assertions, and exception handling in JUnit 5.
AnnotationsAssertions: assertTrue() and assertFalse()Assertions: assertNull() and assertNotNull()Assertions: assertEquals() and assertNotEquals()Assertions: assertArrayEquals() and assertIterableEquals()Assertions: assertSame() and assertNotSame()Assertion: assertAll()Assertions: assertThrows() and assertThrowsExactly()Assertion: assertTimeout()Assertion: assertLinesMatch()Assertions: fail() and assertInstanceOf()Assertion: assertDoesNotThrow()Quiz on Writing Basic Tests
3.
Annotations, Tagging, and Filtering
Annotations, Tagging, and Filtering
5 Lessons
5 Lessons
Examine JUnit 5's annotations, tagging, filtering for optimized test management and execution.
4.
Nested tests in JUnit 5
Nested tests in JUnit 5
4 Lessons
4 Lessons
Apply your skills to organize and test complex functionalities using JUnit 5 nested tests.
5.
Dependency Injections
Dependency Injections
6 Lessons
6 Lessons
Dig into dependency injections, parameter resolvers, repeated tests, and exercise solutions in JUnit 5.
6.
Parameterized and Dynamic Tests
Parameterized and Dynamic Tests
5 Lessons
5 Lessons
Tackle parameterized tests with @ValueSource, @EnumSource, @MethodSource, @CsvSource, and advanced dynamic testing.
7.
Test Instance Lifecycle in JUnit 5
Test Instance Lifecycle in JUnit 5
2 Lessons
2 Lessons
Approach JUnit 5 test instance lifecycles to ensure test independence and manage mutable state effectively.
8.
Extension Model
Extension Model
14 Lessons
14 Lessons
Sharpen your skills in extending JUnit 5 with custom extensions, parameter resolvers, and test templates.
9.
JUnit Platform
JUnit Platform
4 Lessons
4 Lessons
Look at JUnit 4 migration, TestEngine, test discovery and execution, and the Launcher API.
10.
Test Execution Order
Test Execution Order
3 Lessons
3 Lessons
Master the steps to control test method and class execution order in JUnit 5.
Certificate of Completion
Showcase your accomplishment by sharing your certificate of completion.
Complete more lessons to unlock your certificate
Course Author:
Developed by MAANG Engineers
Meet the Instructor
Fu Cheng
Software Engineer at Educative
Every Educative resource is designed by our team of ex-MAANG software engineers and PhD computer science educators — subject matter experts who've shipped production code at scale and taught the theory behind it. No videos, no fluff.
Learn more about FuTrusted by 2.9 million developers working at companies
"These are high-quality courses. Trust me the price is worth it for the content quality. Educative came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks"
Anthony Walker
@_webarchitect_
"Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!"
Evan Dunbar
ML Engineer
"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."
Software Developer
Carlos Matias La Borde
"I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site"
Souvik Kundu
Front-end Developer
"Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content."
Vinay Krishnaiah
Software Developer
Hands-on Learning Powered by AI
See how Educative uses AI to make your learning more immersive than ever before.
AI Prompt
Code Feedback
Explain with AI
AI Code Mentor
Free Resources
