Avoid @MockBean! Use @MockitoBean for Unit Testing in Spring Boot 3.2+

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🚀 Introduction: Why is @MockBean Deprecated?

For years, @MockBean has been widely used in Spring Boot unit tests to mock dependencies. However, in Spring Boot 3.2, @MockBean has been deprecated due to performance and maintainability concerns.

🔴 Problems with @MockBean

✔ Creates unnecessary Spring context proxies → Slows down test execution.
✔ Mocks beans globally → Can cause side effects in multiple tests.
✔ Not optimized for Spring Boot 3.2 testing improvements.

✅ Solution: Use @MockitoBean

Spring Boot 3.2 introduces @MockitoBean, which provides:
✔ Faster test execution with direct Mockito integration.
✔ Better isolation of test components.
✔ More reliable unit testing experience.

1️⃣ What is @MockitoBean?

@MockitoBean is a new annotation in Spring Boot 3.2 that acts as a direct replacement for @MockBean.

✔ It creates mock instances for dependencies.
✔ It integrates better with JUnit 5 and Mockito.
✔ It does not require full…