JUnit and Mockito Crash Course (Udemy.com)
Learn how to use JUnit and Mockito and Unit Test in easy steps.
Created by: Bharath Thippireddy
Last updated September 2026
What you will learn
- Learn what Unit Testing is
- Understand the importance of Unit Testing
- Learn the JUnit Framework and API
- Learn what mocking is and why we should mock
- Write tests using JUnit and Mockito
- Learn What Test Coverage is and how to measure it
- All in simple and easy steps
- Spring Testing Quick Start
- PowerMock Quick Start
- Parameterized JUnit
How it compares
Against the other 281 rated Udemy courses in Software Testing on CourseDuck:
- Rating4.5 out of 5higher than 51% of them
- Reviews5,530#34 of 282 by number of reviews
- Length4.6 hoursshorter than 63% of them
- Last updatedSeptember 2026more recently than 99% of them
Course Description
Sample of the reviews:
Very good teacher, knows the material. Hands on exercises that are quick to write, but very useful to support the learning of the course content. I'll keep these tiny projects and I'll refer to it often when coding. I've learned a lot about JUnit testing and Mockito, but also about other tools useful in software unit testing: Ex: Spring, shortcuts in Eclipse. - Guy Audet
Very well explained, to the point, on short interval to grasp the content. Every lecture has purpose achieved. Simple examples. Really nice course. - Kaushal Trivedi
I enjoyed the course. The Course is well structured, principles were clearly explained, the sound and picture quality was good. I recommend the course to everyone who would like to begin with java unit testing. Thanks, Bharath! - Mario Banay
---
Are you a java developer who want to become an expert at Unit Testing ? Then this course is a quick practical guide for you. Learn how to write real unit tests using JUnit and Mockito. This course will simplify things with concepts and step by step implementations .
There are so many java professionals who write great code , but not unit tests. This course aims at filling that gap by covering JUnit and Mockito the two required frameworks to write good unit tests.
Learn and master the most popular unit testing technologies in this comprehensive course.
Understand the importance of writing Unit Tests
Updated to use the latest versions of JUnit and Mockito
Learn the Syntax of JUnit 4 and 5
Demystify the topics of Mocking
Write Unit tests using JUnit and Mockito
Learn what test coverage is and how to measure it
Run unit tests as a part of your Maven build
Learn how to Unit Test Spring Boot Applicaiton
All in easy steps
Mastering Unit Testing for Java Professionals:
JUnit is a open source Framework to test and assert code behavior . Mockito mocks out the dependencies and stub the expectations allowing testing a particular layer/unit in isolation.
Any java developer at any level can access the key lessons and concepts in this course and learn to write quality unit tests.
This course is perfect for every java developer who works on building high quality applications .
Contents and Overview:
In over 4 hours of lectures this course covers necessary JUnit API and its usage with Mockito.
This course covers the importance of unit testing , how to effectively use JUnit ,how mocking works and how to use Mockito to write real unit tests.
Up on completion you will be able to test Java and Spring Boot applications ,run unit tests as a part of your build and measure code coverage and improve it.
Instructor Details
- 4.5 Rating
5,530 Reviews
Bharath Thippireddy
Bharath Thippireddy is an Entrepreneur, Software Architect, Author, Actor, and Public Speaker who has trained 950,000+ students across 209 countries.
He believes that learning is a crossing — from where you are to where you are capable of being. That belief drives every course he builds.
Bharath has mentored students and professionals across India and the USA — in classrooms, corporates, and agile conferences. He voluntarily teaches interview and soft skills at Vivekananda Kendra. He is the author of Hanuman's Leap, a book that takes the ancient wisdom of the Sundara Kanda and builds it into a complete framework for life's turning points. It comes out Diwali 2026 . He is currently completing his Executive MBA at the Indian School of Business.
He loves learning — in technology and in life — and shares everything he discovers.
From 50+ courses with 950,000+ learners, you can pick a track and master:
Generative AI — OpenAI, LangChain, LangGraph, Agentic AI with n8n, Azure OpenAI, GitHub Copilot
Spring Boot — full stack projects with Angular and React
Angular and React — with Java or Node backends
Python — core Python through Django REST Framework
DevOps and Cloud — Docker, Kubernetes, AWS EC2, Elastic Beanstalk, Jenkins, GIT, and more
Java — Design Patterns, Web Services, Messaging Service
Spring — Security, Boot, Data with Hibernate, Data REST
Serverless — AWS Lambda
More courses by Bharath Thippireddy
Core Java Made Easy (Covers the latest Java 21) (2026)
4.5 (19,948 Reviews)
Provider: Udemy
Time: 28.7h
$18.99
More Software Testing courses
ZeroToHero TestNG Framework - From Basics to Advanced (2026)
4.9 (828 Reviews)
Provider: Udemy
Time: 6.2h
$59.99
Selenium WebDriver with Java- Basics to Advanced + Framework (2026)
4.9 (620 Reviews)
Provider: Udemy
Time: 35.5h
$84.99
Karate DSL: API Automation and Performance from Zero to Hero (2026)
4.8 (4,652 Reviews)
Provider: Udemy
Time: 7.2h
$10.99
API Testing in detail using Postman - Test Automation (2026)
4.8 (423 Reviews)
Provider: Udemy
Time: 7.8h
$10.99
Quick Introduction to Postman and API Testing for Beginners (2025)
4.7 (23,113 Reviews)
Provider: Udemy
Time: 3.2h
$13.99
Software Testing Masterclass (2026) - From Novice to Expert
4.7 (12,622 Reviews)
Provider: Udemy
Time: 9.9h
$149.99
Reviews
By Sandeep Kulange on 6/17/2025
I recently completed this course and I must say it was a great learning experience. I always had confusion about writing unit test cases, especially when it comes to mocking, testing void methods, and static methods. Bharath Sir explained everything in a very simple and clear way, with real-time examples. From basics to advanced topics, I learned how to write unit test cases for both standalone and web applications, with and without Maven. The hands-on sessions were very helpful and practical. The best part is the point-to-point explanation. Sir makes complex topics very easy to understand. Thank you so much Bharath Sir for creating such a useful course. I highly recommend this course to anyone who wants to master JUnit and Mockito. Go for it!
By Depinder Kaur on 1/22/2024
I think the course's content needs to be updated so that it even includes sections for teaching JUnit 5, instead of solely emphasizing on JUnit4. Also, there is a particular section (Test Maven Java Web Application) which according to me felt a bit out of the place. Being a beginner in programming, it felt a little too much information without any context. Otherwise, the instructor is clear, very engaging and knowledgeable. A beginner gets to learn a lot. I thoroughly enjoyed the entire course & would definitely recommend to anyone.
By Anonymized User on 9/14/2022
Explanations about how to use Mockito, how to enable and use Mockito 4 and 5 are nice. Tutorials about how to install required tools are really good and the explanation about FIRST principle was EXCELLENT, but Spring section is not clear enough. Teacher is explaining just a little bit portion of all tools we can use with spring, Junit and Mockito. The used Examples are based on using @SpringBootTest annotation which is used to run spring context during the test executions and the right annotations to run a unit test when Spring context is up, are annotations like @Autowired, @MockBean, @SpyBean and tools like "MockMvc". Other way, when tests doesn't need to use Spring context, we use annotations like @ExtendWith(MockitoExtension.class) which allows us to use Spring and Junit with Mockito in UNIT TESTS using annotations like @Mock, @Spy and @InjectMocks. The given examples in SPRING section are not the right way to test given scenario and in fact I think explained way are bad practices.
By Pratima Kumari on 7/24/2022
Very good teacher, knows the material. Hands on exercises that are quick to write, but very useful to support the learning of the course content. I'll keep these tiny projects and I'll refer to it often when coding. I've learned a lot about JUnit testing and Mockito, but also about other tools useful in software unit testing.
By Eric Botcher on 11/24/2020
He is using an outdated version of Mockitto. Also, this lecture should have been at the beginning of the class.
By Avnish Mishra on 11/2/2020
Till this point explanation is fine
By Tania Jebin on 11/1/2020
good. but as good as the other courses from this instructor. I had no knowledge of testing , may be that is why I could not understand completely.
By Shiva Kiran on 10/22/2020
Learn a lot... great
By Parmendra Kumar on 10/19/2020
It is excellence video for a beginners .But for a professionals ,here needs to cover more topics.
By Lorraine Figueroa on 10/9/2020
I like the step-by-step approach where I follow along with the Instructor. It is easy to pace oneself as you learn the new concepts. The presenter covers things in a logical manner and explains things in detail. The quizzes can be more challenging and maybe even require we look up a thing or two. This is a great place to start learning about unit testing, mockito and code coverage.
By Shreyashkumar H. Limbhetwala on 10/7/2020
Simply awesome
By Sanchit Tripathi on 9/27/2020
Very nicely explained.
Quality Score
No CourseDuck member has rated this course yet. Taken it? Give each part a thumbs up or down.
Overall Score : 90 / 100












