30-days Money-Back Guarantee
Covrig George-Manuel
Learn to write high quality code
Updated on Sep, 2026
Programming, Programming Languages, Java
Duration - 7.5 hours
Training 5 or more people ?
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"Testing Java Apps with JUnit, Mockito, Wiremock, and Postman" is a course designed for Java developers who want to improve their skills in creating robust, high-quality software. It covers the use of JUnit, a popular Java framework for unit testing, along with the Mockito and Wiremock libraries for creating mock objects and simulating HTTP interactions. Additionally, the course covers the use of Postman for testing and debugging RESTful APIs. Throughout the course, you will learn how to write test cases that are easy to maintain, understand and execute. The course will also cover the best practices and common pitfalls to avoid when testing Java applications. By the end of the course, you will have the knowledge and skills needed to confidently create, execute, and maintain automated tests for your Java applications.
You will learn about :
JUNIT concepts - we first write the code for our app, then we identify what is missing to be proud of our code and at the end of this chapter we implement some tests that will cover all our functionality.
how to use POSTMAN to write automated tests and also build your own mock server. POSTMAN is used, most of the time, just for making requests to our app, but in reality it has a lot of functionality that can make your life easier
Mockito - we will talk about stubs/spies/mocks. We first write some tests that will use stub/mock/spy for the simple Java app and after that, we learn what changes in our approach. You will need this information to know exactly when to use what.
Wiremock - you will learn how to an app that uses a rest API client
These are must-know knowledge if you want to advance your career and write better code.
Check out the detailed breakdown of what’s inside the course
Passionate about software engineering in general with proven experience in top companies. Worked with as many programming languages and technologies as I could during my job and outside of my job. This curiosity brought me to the conclusion that even if people think that programming languages are so different, they are not, and it's your "engineering" mind that you should build.
I am a strong believer in the fact that anyone can learn anything if they have enough motivation.
Tried to bring my best in my courses, explaining concepts as better and short as possible, with meaningful diagrams.
If you choose to take my course, I would love to have your constructive reviews (what should I improve/what topics you would like to see more from) and hopefully some positive ones too.
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