Foundations of Unit Testing in Spring Boot

Writing effective tests is crucial for building reliable Spring applications, but knowing how to isolate components correctly for true unit testing can be challenging. This course teaches you the fundamental principles and modern tools needed to build a robust testing suite for any Spring Boot project, ensuring component reliability before integration. What you'll learn: Understand the difference between unit, integration, and slice tests within the Spring context. Apply JUnit 5 and Mockito to isolate and test service logic without relying on external dependencies. Configure test environments to verify data access layer behavior using mock repositories and embedded setups. Practice mocking dependencies and verifying interactions for complex business logic components. Learn best practices for structuring test classes and naming conventions for clarity and maintainability. We start by defining core testing terminology and setting up the testing environment before moving into practical, component-by-component examples using dependency mocking techniques. This course is designed for Java developers who are new to the Spring framework or those who need a structured introduction to modern unit testing practices within Spring Boot projects. No prior testing experience is required. Begin mastering the skills required to write clean and effective tests today.