Gain insights into JUnit 5, explore its advantages over JUnit 4, and delve into its features like assertions, parameterized tests, dependency injection, and test execution order. Discover hands-on projects to cement your skills.
4.7
58 Lessons
18h
Join 2.9 million developers at
Join 2.9 million developers at
LEARNING OBJECTIVES
- 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
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
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Developed by MAANG Engineers
ABOUT THIS COURSE
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.
ABOUT THE AUTHOR
Fu Cheng
Full-stack developer
Trusted by 2.9 million developers working at companies
A
Anthony Walker
@_webarchitect_
E
Evan Dunbar
ML Engineer
S
Software Developer
Carlos Matias La Borde
S
Souvik Kundu
Front-end Developer
V
Vinay Krishnaiah
Software Developer
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