Spring Framework Research & Evidence-Based Practice 2

Question 1

Which Spring testing annotation loads a full application context while allowing bean override for isolated integration tests?

Accepted Answer

@SpringBootTest

Answer

@SpringBootTest loads the complete application context and supports bean overrides via @MockBean or @SpyBean for controlled integration testing.

Question 2

When benchmarking a Spring Boot REST endpoint, which tool is most commonly recommended in the Spring community for HTTP load testing?

Accepted Answer

Gatling or JMeter

Answer

Gatling and JMeter are the evidence-based choices for HTTP load testing Spring REST endpoints, providing throughput and latency metrics.

Question 3

What does the Spring Framework's official documentation recommend as the primary source of truth for verifying bean lifecycle behavior?

Accepted Answer

Spring reference docs and Javadoc

Answer

The Spring reference documentation and official Javadoc are the authoritative, evidence-based sources for understanding bean lifecycle guarantees.

Question 4

Which Spring project provides the Micrometer integration that enables evidence-based performance monitoring through metrics collection?

Accepted Answer

Spring Boot Actuator

Answer

Spring Boot Actuator integrates Micrometer to expose metrics endpoints, enabling data-driven performance monitoring and observability.

Question 5

A developer wants to isolate only the JPA layer during testing. Which slice test annotation does Spring Boot provide for this?

Accepted Answer

@DataJpaTest

Answer

@DataJpaTest configures only JPA-related beans and an in-memory database, providing a focused, evidence-based slice test for the persistence layer.

Spring Framework Practice Test