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Master Spring Boot with Junit5: From basics to Advanced

Name: Master Spring Boot with Junit5: From basics to Advanced
Rating: 4.5 (7 reviews)

Spring Boot Testing: Tools, Techniques, and Best Practices

Created bySourabh Shrivastava

Last updated 8/2024

English

What you'll learn

Helps you to write Unit test in a web application using Spring boot
Helps you to write Integration test in a web application using Spring boot
Helps in learning testing framework in Spring Boot
Will help you learning more about Junit, Mockito, Controller Layer, Data layer testing

Course content

12 sections • 62 lectures • 3h 56m total length

Course Introduction0:48
Learn the essentials of testing in Spring Boot with JUnit 5, from unit to integration tests, and build a strong testing foundation across controller and service layers.
Web development with Junit 5 and Spring Boot2:20
Different kind of Testing in Spring Boot5:54
Testing in Spring boot

Junit 5 and its features2:42
Explore JUnit five, the modern Java testing framework, featuring the platform, Jupiter, and vintage modules, backward compatibility, extensions, parameterized tests, conditional tests, and dynamic testing.
Life cycle in Junit 54:53
Exceptions and Negative testing in Junit 51:13
Learn how to implement exception handling and negative testing in JUnit 5 by using assertThrows to verify thrown exceptions and inspect their messages.
Assertions in Junit 54:12
Explore the JUnit Jupiter assertions API, mastering equals, null checks, true/false, and exception validation, plus array assertions, assert all, and line match.
Mockito Introduction2:29
Mocking with Mockito2:31
Stubbing with Mockito4:53
Explore stubbing with Mockito to define mock behavior using when and thenReturn, argument matchers, and doThrow or doNothing while handling spies and partial mocks.
Question to learn about Junit 5 and Mockito

Course Project Introduction1:41
Creating the application4:21
Create a Spring Boot application using start.spring.io with Gradle, Java 17, and dependencies Spring Web, Spring Data JPA, and H2.
Data Layer and Entity Design4:01
Service Layer8:32
Controller Layer11:58
Create a Spring Boot REST controller for books with get by title, get all, add, update, and delete endpoints, backed by a book service and Swagger API docs.

Introduction to unit testing3:45
Understanding Service Layer Testing in Spring boot1:43
Code setup for service layer test11:53
Develop and run unit tests for the book service layer using JUnit and Mockito, implementing setup with mocks, stubbing find by title, and asserting title and id.
Testing for method returns a List of Object3:20
Write a unit test for the getAllBooks method that returns a list of Book objects, stub findAll, and assert not null, list size, and title.
Void method testing with add method4:57
Develop and verify void methods in Spring Boot tests by using Mockito verify to confirm add book method calls the bookstore.save method, and explore do answer with argument inspection.
Void method testing with delete method4:30
Negative testing for exception in method5:08
Unit testing with Rest Template in Service Layer5:54
Assignment Problem0:31
[Solution] test case 13:52
[Solution] test case 22:57
Questions for unit testing in service layer

Introduction to RESTful Api Testing1:54
Understanding HTTP endpoints6:59
Review the Controller Layer in the app2:02
Explore the book controller in a spring boot app, using RestController and a book service to expose get, post, put, and delete mappings for single and all books, with tests.
GET Api Testing6:32
More about Get Api Testing6:44
Debug a http endpoint test3:25
Learn how to debug a http endpoint test using a print method that reveals request and response details, diagnose a 404 vs 200 mismatch, and fix the endpoint path.
Get API Testing with a List of Object2:28
POST Api Testing3:12
PUT Api Testing2:27
DELETE Api Testing2:06

Introduction to Integration testing1:25
Database Integration test flow0:44
Learn the database integration test flow from book controller to book service to S2 DB by implementing add book and get book by title tests.
Add Book Integration test with H2 DB5:54
Get Book Integration test with H2 DB6:21
External Server Integration test flow0:26
Setup for External Server Integration test4:00
Set up an external server integration test to fetch books, inject the library server URL from application properties (localhost:7070), and run Spring Boot test with MockMvc and active int profiles.
Get All Book Integration test with WireMock Server8:23

Requirements

Java, Spring Boot
Gradle, Maven

Description

Welcome to the ultimate course on "Mastering Spring Boot testing and JUnit 5!"

Whether you're a beginner or an experienced Java developer, this course will take you on a journey from the fundamentals of unit testing to advanced testing techniques in Spring Boot.

With this course you will become a proficient Spring Boot developer with the skills to create robust, reliable, and high-quality applications. Testing is a fundamental pillar of software development, and in this comprehensive course, you will dive deep into the world of testing within the Spring Boot framework.

From the basics to advanced techniques, this course equips you with the knowledge and hands-on experience to take your Spring Boot testing skills to the next level.

What You Will Learn :-

Mastering JUnit 5: Gain a solid understanding of JUnit 5, the industry-standard testing framework for Java. Explore its core concepts, annotations, and advanced features to write effective and efficient tests.

Unit Testing: Learn how to write unit tests to validate the functionality of individual components within your Spring Boot application. Test your services, repositories, and more with real-world examples.

Integration Testing: Understand how to test the interactions between different components and services. Utilize Spring Boot's testing annotations to create a robust testing environment.

Testing RESTful APIs: Master the art of testing RESTful APIs and controllers. Validate request and response payloads, and ensure the reliability of your endpoints.

Advanced Testing Techniques: Explore advanced testing techniques, including parameterized tests, mockito, and testing for exceptional scenarios.

Best Practices: Adopt testing best practices and guidelines to maintain a testable and maintainable codebase.

Why Take This Course:

Real-World Skills: Learn the skills that employers value in today's competitive job market.

Hands-On Practice: Apply what you learn through hands-on coding exercises and real-world projects.

Instructor Expertise: Your instructor is an experienced Spring Boot developer with a passion for teaching.

Lifetime Access: Enroll once and have lifetime access to course materials and updates.

Certificate of Completion: Earn a certificate upon successful course completion.

By the end of this course, you will have the skills and confidence to write comprehensive unit and integration tests for your Spring Boot applications using JUnit 5. Whether you're building RESTful APIs, microservices, or full-stack applications, you'll be equipped with the knowledge to ensure your code is robust, reliable, and bug-free.

Enroll now and embark on your journey to becoming a Spring Boot testing expert! Master the art of testing and elevate your Java development career to new heights.

Who this course is for:

Java developers want to learn Testing in Spring Boot
Web Developers working on Spring Boot Projects
Developers want to understand application of Junit 5

Master Spring Boot with Junit5: From basics to Advanced

What you'll learn

Explore related topics

Course content

Getting Started3 lectures • 9min

Junit 5 and Mockito Framework7 lectures • 23min

Setup for the Project4 lectures • 10min

Course Project5 lectures • 31min

Debugging in Spring test2 lectures • 11min

Service Layer Testing11 lectures • 49min

Controller Layer Testing10 lectures • 38min

Negative testing in Controller Layer5 lectures • 12min

Data Layer Testing5 lectures • 22min

Integration Testing7 lectures • 27min

Requirements

Description

Who this course is for: