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Mastering JUnit & Mockito: Test Java Apps with Spring & SQL

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Learn unit testing with JUnit 5 & Mockito for Java Spring Boot projects using TDD, REST APIs, JPA, and SQL integration.
1
1/5
(91) Ratings
422 students
Created by Skills Marathon
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What you'll learn

  • Write unit tests using JUnit 5 and mock dependencies with Mockito in Java Spring Boot applications.
  • Build real-world REST API test cases, covering services, controllers, and repositories.
  • Perform integration testing with Spring Data JPA and validate SQL-based logic.
  • Apply best practices for writing clean, maintainable test code in enterprise-grade apps.
This course includes:
6 total hours on-demand video
0 articles
0 downloadable resources
50 lessons
Full lifetime access
Access on mobile and TV
Certificate of completion
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Course content

Requirements

  • Basic knowledge of Java programming
  • Familiarity with Spring Boot framework
  • Exposure to REST APIs and SQL/JPA is helpful
  • No prior experience in JUnit or Mockito required — we cover from scratch!

Description

Are you a Java developer aiming to master unit testing using JUnit and Mockito in real-world Spring Boot applications?

This hands-on course teaches you how to implement Test-Driven Development (TDD) practices for Java applications using the powerful combo of JUnit 5, Mockito, Spring Boot, JPA, and SQL. Whether you’re preparing for interviews or working on enterprise-grade projects, this course will give you the confidence to write effective and maintainable test cases.

In this course, you’ll learn to:

  • Write unit tests for service and controller layers

  • Use Mockito to mock dependencies and isolate logic

  • Perform integration testing with JPA and SQL

  • Validate REST APIs with test cases and assertions

  • Apply TDD methodology in Java backend development

This course includes detailed labs, practical examples, and real-world scenarios. You’ll build a solid foundation in Java testing frameworks and understand the core principles of test architecture that help you build scalable applications.

Whether you’re a Java beginner or an experienced backend developer, this course will boost your testing skills and help you deliver quality code confidently.

This hands-on course teaches you how to implement Test-Driven Development (TDD) practices for Java applications using the powerful combo of JUnit 5, Mockito, Spring Boot, JPA, and SQL. Whether you’re preparing for interviews or working on enterprise-grade projects, this course will give you the confidence to write effective and maintainable test cases.

Who this course is for:

  • Java developers who want to master unit testing and test-driven development
  • Backend engineers building Spring Boot microservices and APIs
  • Software testers and QA engineers interested in automation with JUnit & Mockito
  • Students preparing for Java interviews or enhancing their portfolio with strong testing skills
  • Anyone curious about professional-level testing in Java applications
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