Spring Framework Quality Control & Assurance 3

Question 1

Which tool integrated with Spring Boot Actuator provides health checks that can be used for quality assurance in production?

Accepted Answer

Spring Actuator HealthIndicator

Answer

Spring Boot Actuator's HealthIndicator interface allows components to report their health status via the /actuator/health endpoint.

Question 2

What is the role of Testcontainers when used with Spring Boot tests?

Accepted Answer

Starts real Docker containers (e.g., databases) during integration tests

Answer

Testcontainers starts and manages real Docker containers for services like PostgreSQL or Redis during integration test execution.

Question 3

In Spring, which annotation marks a method to run before each test method in a JUnit 5 test class?

Accepted Answer

@BeforeEach

Answer

JUnit 5 uses @BeforeEach (not JUnit 4's @Before) to annotate setup methods that run before each individual test.

Question 4

Which Spring framework feature allows you to verify that a method was called on a @MockBean a specific number of times?

Accepted Answer

Verify API from Mockito via Mockito.verify()

Answer

Mockito.verify() combined with times() allows assertions on how many times a method was called on a mock or spy bean.

Question 5

What does the @Transactional annotation do when applied to a Spring test method?

Accepted Answer

Rolls back the transaction after each test by default

Answer

When @Transactional is applied to a Spring test, the transaction is rolled back after each test method by default, keeping the database clean.

Spring Framework Practice Test