JUnit courses can help you learn unit testing principles, test-driven development, and effective debugging techniques. You can build skills in writing test cases, understanding assertions, and using mocking frameworks. Many courses introduce tools like Mockito and AssertJ, which enhance your testing capabilities and streamline the development process. You'll also explore best practices for maintaining code quality and integrating tests into continuous integration pipelines, ensuring your applications are robust and reliable.

Skills you'll gain: Spring Boot, Application Development, Application Deployment, Application Frameworks, Software Testing, Test Case, Development Environment, Model View Controller, API Design, Software Development Tools, Java Platform Enterprise Edition (J2EE), UI Components, Data Access, Authentications, SQL, Object Oriented Programming (OOP), JSON, Functional Design, Databases
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Apache Maven, Data Import/Export, Object Oriented Programming (OOP), JSON, Java Programming, Debugging, JUnit, Java, Software Documentation, Data Structures, Computer Programming, Restful API, Integrated Development Environments, File Management, Programming Principles, Data Validation, Package and Software Management, Network Protocols, Unit Testing, Computer Science
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: JUnit, Apache Maven, Spring Framework, Spring Boot, Model View Controller, Unit Testing, Microservices, Application Development, Redis, Restful API, YAML, Java, Java Programming, MongoDB, Application Deployment, Application Design, NoSQL, Ajax, Hibernate (Java), Software Testing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Behavior-Driven Development, JSON, Restful API, Apache Maven, Application Programming Interface (API), Test Tools, Test Case, Test Planning, JUnit, Test Engineering, Security Testing, Test Automation, Authentications, Test Data, Scalability, Software Testing, Java Programming, Java
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Gherkin (Scripting Language), Debugging, Integration Testing, Software Design Patterns, Test Data, Scripting, Web Development Tools, Data Structures, Automation, SQL, Cascading Style Sheets (CSS), MySQL, Hypertext Markup Language (HTML)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Restful API, API Design, Spring Boot, Authentications, Test Automation, JSON, Application Deployment, Spring Framework, Application Programming Interface (API), Object-Relational Mapping, JUnit, Test Case, Software Quality Assurance, Software Testing, Business Logic, Back-End Web Development, Data Modeling, Software Architecture, Java Programming, Java
Beginner · Specialization · 1 - 3 Months

Simplilearn
Skills you'll gain: Test Tools, Acceptance Testing, Software Testing, Test Automation, Test Planning, Software Quality Assurance, Generative AI, Test Data, Scenario Testing, Test Case, Requirements Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Data Structures, Java Programming, Development Testing, Algorithms, Program Development, Software Testing, Java, Computer Programming, Software Development, Programming Principles, Debugging, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unit Testing, JUnit, Integration Testing, Restful API, Test Driven Development (TDD), Software Testing, Java Programming, Hibernate (Java)
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Unit Testing, Test Case, Test Driven Development (TDD), Debugging, Software Testing, Development Testing, Test Automation, Test Tools, Quality Assurance
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Jest (JavaScript Testing Framework), Unit Testing, TypeScript, Software Testing, Test Driven Development (TDD), Code Coverage, Testability, Test Case, Javascript, Debugging
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Unified Modeling Language, Object Oriented Programming (OOP), Test Driven Development (TDD), JUnit, Java, Unit Testing, Software Testing, Software Engineering, Software Design Patterns, Java Programming, Software Design, Systems Analysis, Conceptual Design
Build toward a degree
Intermediate · Course · 1 - 3 Months