Spring Boot Unit Testing with JUnit, Mockito and MockMvc

UPDATED TO COVER SPRING BOOT 3

Spring Boot 3 is the most popular framework for building enterprise Java applications. Spring Boot 3 includes testing support to develop unit tests and integration tests using JUnit, Mockito and MockMvc. By developing tests, you can create applications with better code design, fewer bugs, and higher reliability. This course shows you how to take full advantage of Spring Boot's testing support.

You will also use modern development tools such as IntelliJ (free version) and Maven. All of the projects are based on Maven, so you are free to use any IDE tool that you want.

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In this course, you will get:

- All source code is available for download

- Responsive Instructors: All questions answered within 24 hours

- PDFs of all lectures are available for download

- Professional video and audio recordings (check the free previews)

- High quality closed-captions / subtitles available for English and 14 other languages (new!)

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Over 3,000+ Reviews!

- (the most reviews for any Spring Boot Unit Testing course on Udemy, nearly DOUBLE the nearest competitor)

Students love this course! 5-star reviews

Chad Darby and Eric Roby are great at delivering the materials and giving good real-world examples of concepts. they make the course a very enjoyable class, This course is very thorough and detailed. Thank you - Ninos

Great course, the material is explained in such a clear way. I enjoy it a lot. Highly recommendable. - Ardak Sydyknazar

Chad Darby's courses are the best on Udemy. Thanks him I've got my first work and got promotion on the second one. Good job, my friend! (c) :) - Andrii Hryhoriev

this is my 4th Course with Mr. Darby, and his courses are so special. Organized, clear concepts, amazing material. and the most important his Knowledge of the Topic and he really deliver the information's for us. just amazing. - Ra'ed Abu Sa'da

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In this course, you will learn how to:

JUnit

• Develop JUnit Tests

• Set up projects to use JUnit

• Apply JUnit assertions: Equals/Not Equals and Null/NotNull

• Apply JUnit assertions: Same/Not Same and True/False

• Leverage JUnit lifecycle annotations

• Define custom display names for JUnit tests

• Check for exceptions and timeouts

• Define execution order in JUnit tests

• Perform code coverage analysis for JUnit tests

• Apply conditionals with JUnit tests

Test Driven Development (TDD)

• Apply Test Driven Development for build tests and application code

• Create a failing test first

• Update your code to make the tests pass

• Take your tests from RED to GREEN

• Apply TDD to a coding project

• Leverage parameterized tests with TDD

Spring Boot Unit Testing Support

• Explore annotations for Spring Boot Unit Testing support

• Apply the @SpringBootTest annotation

• Read Spring Boot application properties and inject values using the @TestPropertySource annotation

• Perform assertEquals and assertNotEquals

• Leverage Spring Boot singleton beans and prototype beans

Mocking with Mockito

• Identify the need for mocking during test development

• Leverage Mockito in JUnit tests

• Applying the @MockitoBean annotation for injection (new in Spring Boot 3.4)

• Throwing exceptions with Mocks

Spring Reflection Utils

• Identify use cases for applying reflection in your JUnit tests

• Apply ReflectionTestUtils to access non-public fields and methods

• Integrate Spring Reflection Utils in your JUnit tests

Database Integration Testing

• Identify the need for database integration testing during test development

• Add database setup and clean code using @BeforeEach and @AfterEach

• Leverage an embedded database to ease with testing setup and maintenance.

• External SQL statements using @Sql annotation

Testing Spring Boot MVC Web Apps with MockMvc

• Apply Spring Boot using testing for a Spring MVC CRUD web app

• Identify use cases for testing Spring MVC @Controller

• Configure the JUnit test case using @AutoConfigureMockMvc

• Inject the MockMvc dependency for testing Spring MVC Controllers

• Send HTTP Requests to Spring MVC Controllers and assert the results

• Assert the view name returned by the Spring MVC Controller

• Assert model attributes for the desired values

Testing Spring Boot REST APIs with MockMvc

• Apply Spring Boot using testing for a Spring REST CRUD API

• Inject the MockMvc dependency for testing Spring MVC @RestController

• Send HTTP Requests to Spring MVC @RestController and assert the results

• Leverage Jackson Object Mapper to send JSON data to REST API endpoint

• Expect successful response and desired content type

• Apply JsonPath to verify contents of JSON response

Compared to other Spring Boot Unit Testing courses

This course is up to date and covers recent versions of Spring Boot 3. We make use of modern development tools such as IntelliJ (free version) and Maven.

We are very responsive instructors and we are available to answer your questions and help you work through any problems.

Finally, all source code is provided with the course along with setup instructions.

Student Reviews Prove This Course's Worth

Those who have reviewed the course have pointed out that the instruction is clear and easy to follow, as well as thorough and highly informative. 

Many students had also taken other Spring Boot Unit Testing courses in the past, only to find that this Spring Boot Unit Testing course was their favorite. They enjoyed the structure of the content and the high quality audio/video.

Sample of Student Reviews - 5 stars!

Chad Darby and Eric Roby are great at delivering the materials and giving good real-world examples of concepts. they make the course a very enjoyable class, This course is very thorough and detailed. Thank you - Ninos

Great course, the material is explained in such a clear way. I enjoy it a lot. Highly recommendable. - Ardak Sydyknazar

Chad Darby's courses are the best on Udemy. Thanks him I've got my first work and got promotion on the second one. Good job, my friend! (c) :) - Andrii Hryhoriev

this is my 4th Course with Mr. Darby, and his courses are so special. Organized, clear concepts, amazing material. and the most important his Knowledge of the Topic and he really deliver the information's for us. just amazing. - Ra'ed Abu Sa'da

Quality Material

You will receive a quality course, with solid technical material and excellent audio and video production. I am a best-selling instructor on Udemy. Here's a list of my top courses.

• Full Stack: React and Spring Boot

• Full Stack: Angular and Spring Boot E-Commerce Website

• Spring and Hibernate for Beginners

• Hibernate: Advanced Development Techniques

• Deploy Spring Boot 3 Apps Online to Amazon Cloud (AWS)

• JSP and Servlets for Beginners

• JavaServer Faces (JSF) for Beginners

These courses have received rave 5 star reviews and over 800,000 students have taken the courses. Also, these courses are the most popular courses in their respective categories.

I also have an active YouTube channel where I post regular videos. In the past year, I’ve created over 1200 video tutorials (public and private). My YouTube channel has over 7 million views and 43k subscribers. So I understand what works and what doesn’t work for creating video tutorials.

No Risk – Udemy Refund 

Finally, there is no risk. You can preview 25% of the course for free. Once you purchase the course, if for some reason  you are not happy with the course, Udemy offers a 30-day refund (based on Udemy's Refund Policy).

So you have nothing to lose, sign up for this course and learn how to apply Spring Boot Unit Testing

Target Audience

Java Developers with Spring Boot experience