[Solved] What is the effect of using @MockBean on a Spring component in a test context? — Ans: It replaces the real bean with a Mockito mock in the application context during... | Spring Boot

Spring Boot - Testing Spring Boot Applications

What is the effect of using @MockBean on a Spring component in a test context?

AIt replaces the real bean with a Mockito mock in the application context during the test

BIt creates a new instance of the real bean without any mocking

CIt disables the bean from being loaded in the test context

DIt automatically injects dependencies into the bean without mocking

Step-by-Step Solution

Solution:

Step 1: Understand @MockBean behavior
@MockBean creates a Mockito mock and replaces the existing bean in the Spring test context.
Step 2: Effect on application context
The mock bean is injected wherever the original bean was used, allowing controlled behavior in tests.
Final Answer:
It replaces the real bean with a Mockito mock in the application context during the test -> Option A
Quick Check:
MockBean replaces real beans with mocks [OK]

Quick Trick: MockBean replaces real beans with mocks in tests [OK]

Common Mistakes:

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