Quality Control & Assurance Flashcards

Which annotation in Spring Boot Test is used to auto-configure a TestRestTemplate for full integration tests?

Answer: @SpringBootTest with webEnvironment = RANDOM_PORT

When @SpringBootTest uses RANDOM_PORT or DEFINED_PORT, Spring Boot auto-configures a TestRestTemplate bean for HTTP client testing.

In Spring's testing support, what does ApplicationContext caching mean?

Answer: The ApplicationContext is reused across tests with the same configuration, reducing startup time

Spring's TestContext Framework caches the ApplicationContext so tests sharing the same configuration reuse the same context, speeding up test suites.

What is the effect of @DirtiesContext on the Spring test ApplicationContext?

Answer: Clears the context cache so a fresh context is created for subsequent tests

@DirtiesContext forces Spring to close and recreate the ApplicationContext after the annotated test, useful when a test modifies shared state.

Which Spring Boot testing slice would you use to test a REST client that calls an external API, with the HTTP layer mocked?

Answer: @RestClientTest

@RestClientTest configures a MockRestServiceServer to intercept and verify HTTP calls made by RestTemplate or RestClient beans.

In Spring MVC tests, what does .andExpect(status().isOk()) verify?

Answer: The HTTP response status code is 200

status().isOk() is a ResultMatcher that asserts the HTTP response status is 200 OK.

What is the purpose of WireMock when used in Spring Boot integration tests?

Answer: Stubs and verifies HTTP interactions with external services

WireMock runs a real HTTP server that stubs responses and verifies request interactions, enabling tests of HTTP client code against realistic endpoints.

Which Mockito method call pattern is used to stub a method on a @MockBean to return a specific value?

Answer: when(bean.method()).thenReturn(value)

Mockito's when().thenReturn() pattern stubs a method call on a mock to return a predefined value when invoked.