Spring Testing Quiz - MCQ - Multiple Choice Questions

The Spring framework, being a comprehensive solution for enterprise-grade applications, provides excellent support for testing its components. Whether you're just starting out with Spring or you've been developing with it for a while and want to gauge your knowledge about its testing capabilities, this MCQ guide on Spring Testing is perfect for you. Let's delve into the quiz!

Note that each question is followed by the correct answer and an explanation to help reinforce your knowledge.

1. Which of the following best describes Unit Testing?

a) Testing individual units or components of software

b) Testing the interaction between different software modules

c) Testing the software as a whole system

d) Testing the software in a production environment

Answer:

a) Testing individual units or components of software

Explanation:

Unit Testing focuses on testing individual units or components in isolation to ensure they work as expected.

2. During which type of testing do you test the interactions between different parts of a system?

a) Unit Testing

b) Performance Testing

c) Integration Testing

d) Regression Testing

Answer:

c) Integration Testing

Explanation:

Integration Testing is centered around testing the interactions and interfaces between different parts or units of a system

3. Which type of test typically uses mocks and stubs?

a) Acceptance Testing

b) Integration Testing

c) Unit Testing

d) System Testing

Answer:

c) Unit Testing

Explanation:

Unit Testing often uses mocks and stubs to simulate external dependencies and isolate the component under test.

4. What is the purpose of the @SpringBootTest annotation in a Spring Boot application?

a) To perform unit testing.

b) To bootstrap the entire container for integration testing.

c) To configure Spring Security.

d) To develop web applications.

Answer:

b) To bootstrap the entire container for integration testing.

Explanation:

The @SpringBootTest annotation is used to bootstrap the entire container which is helpful in integration testing where no mocking is involved.

5. Which class helps in mocking and testing Spring MVC controllers without starting an HTTP server?

a) MvcMocker

b) MvcTester

c) MockMvc

d) MvcServerMock

Answer:

c) MockMvc

Explanation:

MockMvc provides a powerful way to test MVC controllers without the need for an actual web server.

6. When you want to roll back a transaction after a test, which annotation can you use?

a) @Rollback

b) @Commit

c) @TransactTest

d) @NoCommit

Answer:

a) @Rollback

Explanation:

The @Rollback annotation ensures that the transaction for a test method is rolled back after the test completes.

7. For which purpose is the @TestPropertySource annotation used in Spring Testing?

a) To provide test-specific properties

b) To define test methods

c) To load test beans

d) To specify test profiles

Answer:

a) To provide test-specific properties

Explanation:

@TestPropertySource is used to specify locations of properties files that are specific to testing.

8. In Spring Testing, which annotation is used to set up a mock Servlet environment?

a) @WebMvcTest

b) @WebEnvironment

c) @MockServlet

d) @SpringWebTest

Answer:

a) @WebMvcTest

Explanation:

@WebMvcTest is used for testing the controller layer and sets up a mock Servlet environment.

9. To execute a test method repeatedly, you would use:

a) @Repeat

b) @AgainAndAgain

c) @MultipleTimes

d) @Rerun

Answer:

a) @Repeat

Explanation:

The @Repeat annotation allows you to specify how many times a test method should be executed.

10. What is the primary use of TestRestTemplate in Spring Testing?

a) Mocking MVC controllers

b) Sending HTTP requests in tests

c) Configuring test databases

d) Setting up test properties

Answer:

b) Sending HTTP requests in tests

Explanation:

TestRestTemplate is a utility designed for integration testing and is used for sending HTTP requests within test scenarios.

11. Which Spring Testing annotation focuses on testing JPA components?

a) @JpaTest

b) @RepositoryTest

c) @DatabaseTest

d) @EntityTest

Answer:

a) @JpaTest

Explanation:

@JpaTest is used specifically for testing JPA components.

12. For mocking external services in tests, Spring recommends:

a) Mockito

b) JUnit

c) TestBeans

d) SpringMock

Answer:

a) Mockito

Explanation:

Mockito is a popular mocking framework and is recommended by Spring for mocking external services in tests.

13. To provide a mock version of a bean in a test context, which annotation should be used?

a) @MockBean

b) @TestBean

c) @BeanMock

d) @SpringMock

Answer:

a) @MockBean

Explanation:

The @MockBean annotation is used to provide a mock version of a bean in the test application context.

14. How can you run a Spring test without a running server?

a) Using MockMvc

b) Using ServerRunner

c) Booting up a minimal context

d) Using @NoServer

Answer:

a) Using MockMvc

Explanation:

MockMvc allows for server-side testing of Spring MVC applications without a running server.

15. What is the primary dependency for testing in Spring Boot?

a) spring-boot-starter-web

b) spring-boot-starter-data-jpa

c) spring-boot-starter-test

d) spring-framework-core

Answer:

c) spring-boot-starter-test

Explanation:

The spring-boot-starter-test dependency includes the majority of elements required for testing in Spring Boot.

16. What is the primary use of the @WebMvcTest annotation in Spring Boot?

a) Test the entire application context

b) Test only the MVC components of the application

c) Load the embedded web server

d) Test database layers

Answer:

b) Test only the MVC components of the application

Explanation:

The @WebMvcTest annotation in Spring Boot is used for testing the MVC components of the web layer, excluding other components like services and repositories.

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