Learn JUnit 5 (JUpiter) + libraries for unit and integration testing from scratch together with test-driven development
β±οΈ Length: 4.0 total hours
β 4.37/5 rating
π₯ 85,654 students
π July 2025 update
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- Course Overview
- Embark on a comprehensive journey into modern Java testing methodologies, mastering the intricacies of unit, integration, and acceptance testing frameworks.
- This course provides a foundational understanding of test-driven development (TDD) principles and progresses to more sophisticated approaches like Behavior-Driven Development (BDD) and Acceptance Test-Driven Development (ATTD).
- Gain hands-on experience with the latest advancements in Java testing, ensuring your applications are robust, reliable, and maintainable.
- Understand the strategic importance of testing in the software development lifecycle and how to effectively integrate it into your workflow.
- Explore practical applications of these testing concepts through real-world scenarios, demystifying complex testing challenges.
- Develop a keen eye for identifying testable code and writing efficient, effective tests that provide maximum value.
- Why This Course Is Essential
- Navigate the evolution of Java testing by understanding the distinct advantages and improvements offered by JUnit 5 (Jupiter) over its predecessor.
- Learn how to effectively isolate and test individual components of your application, ensuring their correct functionality.
- Master the art of simulating external dependencies using powerful mocking frameworks to create controlled and repeatable test environments.
- Delve into advanced techniques for mocking complex or difficult-to-test scenarios, going beyond basic mock object creation.
- Understand how to verify the interactions between different parts of your system, ensuring seamless integration.
- Discover how to translate business requirements into executable test specifications, fostering collaboration between developers, testers, and stakeholders.
- Grasp the principles of writing tests before writing production code, leading to cleaner, more maintainable, and bug-free software.
- Learn to design tests that reflect the expected behavior of the system from a user’s or business perspective.
- Acquire the skills to implement automated tests that validate the end-to-end functionality of your application, ensuring it meets user expectations.
- Gain insights into how to measure the effectiveness of your testing efforts and identify areas for improvement through code coverage analysis.
- Become proficient in executing your tests directly within popular Integrated Development Environments (IDEs) like Eclipse, streamlining your development cycle.
- Requirements / Prerequisites
- A solid foundation in Java programming language fundamentals is expected.
- Familiarity with basic object-oriented programming (OOP) concepts is beneficial.
- Prior exposure to any unit testing framework, while not strictly required, would be advantageous.
- An understanding of software development lifecycle concepts will enhance the learning experience.
- Access to a Java Development Kit (JDK) and a compatible Integrated Development Environment (IDE) is necessary for practical exercises.
- Skills Covered / Tools Used
- JUnit 5 (Jupiter): Mastery of the latest features and annotations for writing modern Java unit tests.
- Mockito: Proficiency in creating and configuring mock objects to isolate dependencies.
- PowerMock: Advanced techniques for mocking static methods, constructors, and private members.
- Test-Driven Development (TDD): Practical application of the red-green-refactor cycle.
- Behavior-Driven Development (BDD): Understanding and implementation of scenarios described in natural language.
- Acceptance Test-Driven Development (ATTD): Writing tests that validate business acceptance criteria.
- Integration Testing: Techniques for verifying the interaction between multiple components.
- Code Coverage Analysis: Tools and strategies for measuring test completeness.
- Eclipse IDE: Practical experience with test execution within a popular IDE.
- Benefits / Outcomes
- Develop the confidence to write robust, well-tested Java applications.
- Significantly reduce the number of bugs in your codebase.
- Improve the design and maintainability of your software through testable code.
- Enhance collaboration and communication within development teams through shared understanding of behavior.
- Increase your productivity by catching errors early in the development cycle.
- Become a more valuable asset to your development team by mastering essential modern testing practices.
- Build a strong portfolio of projects demonstrating proficiency in cutting-edge testing techniques.
- Be well-prepared for technical interviews that assess your knowledge of software quality assurance.
- Contribute to the creation of higher-quality, more stable software products.
- PROS
- Comprehensive Curriculum: Covers a wide spectrum of essential Java testing tools and methodologies.
- Up-to-Date Content: Features the latest versions of JUnit 5 and related libraries.
- Practical Focus: Emphasizes real-life examples and hands-on application.
- High Student Engagement: Demonstrated by a large student base and strong rating.
- Clear Progression: Builds from fundamental TDD to advanced BDD/ATTD concepts.
- CONS
- Pacing for Beginners: While comprehensive, the depth of coverage might require focused effort for absolute beginners in testing.
Learning Tracks: English,Development,Software Testing
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