Testing Spring Boot: Beginner to Guru from Udemy

In modern software development having proper automated test coverage is considered a best practice. In this course you will learn how to test Java and Spring Boot applications using highly popular open source tools.

You will see in the first section of this course, the software testing ecosystem is very diverse. JUnit and Mockito are two of the leading testing libraries for Java. JUnit provides the test execution context, while Mockito give you power mocking capabilities. Together these libraries can be used to write unit tests, integration tests, and functional tests. You will also learn why having proper test coverage is critical to supporting other popular agile practices such as Continuous Integration and Continuous Deployment (aka CI/CD).

Agile teams all over the world consider Test Driven Development (TDD) a critical technique for producing quality software. This course begins by using JUnit 5 to demonstrate how to use TDD to create a simple Java application, then again using TDD to evolve the application to a higher level of quality and functionality.

Next, the course takes you into a deep dive of the features and functionality of JUnit 5. You will learn how to write JUnit 5 unit tests for a Java web application.

The primary focus of this course is on the JUnit 5 release. There are some very notable differences between JUnit 4 and JUnit 5. This course contains a dedicated section showing you how to migrate your JUnit 4 tests to JUnit 5.

As your testing needs become more complex, you will need to mock dependent objects.

Not sure what a mock is? It's effectively a test double. An object created for unit testing.

Mockito is the most popular mocking library used by Java developers.

If you are writing Spring Framework applications, you're likely to be injecting dependent objects into your classes. You will learn how to use the robust mocking capabilities of Mockito to mock dependent objects in your unit tests.

The first 11 sections of the course focus heavily on unit testing with JUnit 5 and Mockito. This is to help you establish a strong unit testing foundation before we start testing Spring Boot applications.

You will have no doubts when it comes to testing Java classes using JUnit 5 and Mockito.

The Spring Framework itself has some very robust testing capabilities.

We start learning to test the Spring Framework by adding the Spring Framework Testing context to our tests.

This allows us to leverage the Spring Framework's Dependency Injection capabilities right in our tests.

Properly testing Spring MVC controllers can always be a little tricky. You need to test all the things you are expecting the Spring Framework to handle for you around calls to your controllers.

This is where Spring MVC Test steps in. You will see how you can use Spring MVC Test with JUnit 5 and Mockito to properly test your Spring MVC Controllers.

The course continues showing you how to use Spring Boot test splices to bring up a minimal Spring Boot configuration for the testing of a Spring MVC RESTful controller.

Another powerful Spring project is Spring This is a project which allows you to generate API documentation from your Spring Mock MVC tests.

Inside this course you will learn:

JUnit 5
AssertJ
Hamcrest Matchers
Mockito 2
Test Driven Development (TDD)
Behavior Driven Development (BDD) with Mockito
Migrating to JUnit 5 from JUnit 4
Running JUnit 5 tests from Maven
Running JUnit 5 tests from Gradle
Use CircleCI with Maven for Continuous Integration Testing
Spring MVC Test
JsonPath
Wiremock
Spring Get hands on experience using the Java IDE preferred by Spring Framework professionals.
Course Extra - Access to a Private Slack Community
You're not just enrolling in a course > You are joining a community learning about testing Spring.
With your enrollment to the course, you can access an exclusive Slack community. Get help from the instructor and other Spring Framework Gurus from around the world - in real time. This community is only available to students enrolled in this course.
This is a very active Slack community with over 1,000 Spring Framework Gurus.
This is the largest online community of people learning Spring in the world.
With your enrollment, you can join this community of awesome gurus.
Source Code Access
All course source code is available in GitHub. When you enroll, refer to the lesson resources for links to GitHub.
Closed Captioning / Subtitles
Closed captioning in English is available for all course videos.
PDF Downloads
All keynote presentations are available for you to download as PDFs.
Lifetime Access
When you purchase this course, you will receive lifetime access. You can login anytime from anywhere to access the course content.
No Risk - Money Back Guarantee
You can buy this course with no risk. If you are unhappy with the course, for any reason, you can get a complete refund. The course has a 30 day Money Back Guarantee.Enroll today and start learning about the latest tools and best practices for testing your Spring Boot applications.

What's inside

Learning objectives

Learn important concepts behind test driven development
Understand different types of testing - unit, integration, functional
Master the junit 5 testing api
Easily integrate mockito with junit 5 tests

Migrate junit 4 tests to junit 5
Test spring framework applications with junit 5 and mockito
Write unit tests with spring mvc test
Learn to use testing features of spring boot

Learn important concepts behind test driven development
Understand different types of testing - unit, integration, functional
Master the junit 5 testing api
Easily integrate mockito with junit 5 tests
Migrate junit 4 tests to junit 5
Test spring framework applications with junit 5 and mockito
Write unit tests with spring mvc test
Learn to use testing features of spring boot

Syllabus

Introduction

Meet your instructor John Thompson, founder of Spring Framework Guru, Speaker at Spring One, former Spring Source consultant

Welcome to the Testing Spring Boot course!

Introduction to testing software.

See a very simple JUnit 5 unit test.

Overview of common testing frameworks for Java and Spring Boot. Includes: JUnit 4, JUnit 5, TestNG, Spock, Mockito, Selenium, and GEB.

Learn why having proper test coverage via JUnit tests is needed to realize the benefits of CI/CD for your Spring Boot applications.

Section overview for learning Test Driven Development using JUnit 5.

Learn about the original author of JUnit, Kent Beck, and his passion for Test Driven Development.

In this lesson, we review the development requirements for completing the TDD section of the course using JUnit 5.

Overview of the Getting Started with JUnit 5 section of the course.

Overview of JUnit 5.

How to add the required dependencies for JUnit 5 to your Maven POM.

Simple "Hello World" example in JUnit 5.

See how to initialize properties using the JUnit @Before annotation.

Introduction to this section of the course, which is an introduction to JUnit 5.

In this lesson we review the code of a project we will use to write tests using JUnit 5.

Introduction to the section of the course on advanced features of JUnit 5.

Learn how you can tag and filter JUnit tests.

Learn how to use JUnit nested tests.

JUnit 5 brings the capability to use Java interfaces for your unit tests

You can use Java default methods with your JUnit 5 tests.

See how to repeat JUnit tests multiple times.

JUnit 5 has the ability to inject dependencies into your tests.

Student assignment covering JUnit dependency injection.

Review of student assignment covering JUnit dependency injection.

Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Outlines the importance of TDD for software development teams

Covers essential Java testing tools like JUnit, AssertJ, and Mockito

Provides hands-on demonstrations using IntelliJ IDEA, the preferred IDE for Java developers

Focuses on migrating JUnit 4 tests to JUnit 5 for improved testing capabilities

Offers real-world examples and exercises for a practical understanding of testing Java classes and Spring Boot applications

Emphasizes testing all layers of an application, from unit to integration to RESTful services

Reviews summary

Practical testing for spring boot developers

According to learners, this course provides a solid and practical foundation for testing Java and Spring Boot applications. Many highlight the comprehensive coverage of core tools like JUnit 5 and Mockito, finding the explanations clear and the hands-on coding examples particularly useful. Students appreciate the inclusion of topics like TDD and integration with build tools like Maven and Gradle, as well as CI/CD concepts. The instructor's expertise and the supportive Slack community are frequently mentioned as major positive aspects. Some note that while marketed as 'Beginner to Guru', a prior understanding of Java and Spring Boot is beneficial to keep up with the pace and depth of the material.

Regular updates mentioned by instructor.

"It's great that the instructor keeps the course updated with the latest library versions."

"Noticed recent updates have addressed some earlier issues or outdated content."

"Instructor is responsive to feedback and improves the course over time."

"Appreciate the commitment to keeping the material current."

Covers TDD, CI/CD integration.

"Learning how to incorporate TDD into my development process was invaluable."

"The sections on integrating tests with Maven/Gradle and CI were very practical."

"Loved that it covered TDD from Kent Beck's perspective."

"Understanding how testing fits into a CI/CD pipeline is crucial, and this course explains it."

Instructor is knowledgeable and clear.

"John knows his stuff and explains complex topics in a clear way."

"The instructor's background in Spring is evident throughout the course."

"He has a great teaching style and keeps you engaged."

"I trust the information presented because the instructor is clearly an expert."

Exclusive access to Slack community.

"The Slack community is incredibly active and helpful, getting questions answered quickly."

"Being able to ask the instructor and other students questions in real-time via Slack was a huge plus."

"The community aspect makes learning much less isolating."

"Joining the Slack group was one of the best parts of the course experience."

Helps build a robust testing skillset.

"This course gave me the confidence to start implementing TDD and better testing practices at work."

"I feel much more competent in testing my Spring Boot applications now."

"Provides a great base for anyone serious about writing maintainable Spring code."

"Significantly improved my testing skills from beginner to proficient."

Focus on coding examples and exercises.

"The hands-on coding approach really solidified my understanding of the concepts."

"Practical examples were spot-on and easily applicable to my own projects."

"Assignments helped reinforce the material covered in the lectures."

"Lots of code examples provided, which is exactly what I needed to learn."

Deep dives into JUnit 5 and Mockito.

"The coverage of JUnit 5 and Mockito is very thorough and practical."

"I learned so much about writing proper unit tests using the latest JUnit 5 features."

"Mockito was explained well, making mocking dependencies in my tests much easier."

"Detailed look at JUnit 5 and Mockito, which are essential tools for testing Spring applications."

Can be fast-paced; requires prior knowledge.

"As a beginner, the pace felt a bit fast at times. Needed to pause and rewatch sections."

"Assumes a certain level of familiarity with Spring Boot which isn't explicitly stated as a prerequisite but seems necessary."

"If you don't know Java and Spring Boot well, you might struggle initially."

"Marketed for beginners but the depth and speed might be better suited for intermediate developers."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Testing Spring Boot: Beginner to Guru with these activities:

Review and Organize Course Materials

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Lay a solid foundation for your learning by familiarizing yourself with the course materials, organizing them for efficient access and revision.

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Download or print the course materials.
Review the syllabus, schedule, and course outline.
Organize the materials into a logical structure.

Head First Java

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Reinforce your Java fundamentals with Head First Java, a comprehensive and engaging book that will solidify your understanding of core concepts.

View Head First Java: A Brain-Friendly Guide on Amazon

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Review the basics of Java syntax and data structures
Practice writing and debugging Java code

Gather Resources on JUnit 5 and Java Testing

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Enhance your knowledge base by compiling a collection of resources, including tutorials, articles, and documentation, on JUnit 5 and Java testing.

Browse courses on JUnit 5

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Search online for relevant resources.
Bookmark or save the resources for future reference.
Categorize the resources for easy organization.

11 other activities

Expand to see all activities and additional details

Show all 14 activities

Learn Java unit testing basics

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Explore the basics of unit testing in Java, including principles, frameworks, and tools, to strengthen your testing foundation.

Browse courses on Unit Testing

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Review the principles of unit testing
Explore the JUnit testing framework
Practice writing test cases for simple Java classes

Join a JUnit 5 Study Group

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Gain insights and support by connecting with peers in a JUnit 5 study group, fostering a collaborative learning environment.

Browse courses on JUnit 5

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Find or create a JUnit 5 study group.
Regularly attend meetings or online discussions.
Share knowledge, ask questions, and provide feedback.

Review Spring Boot testing capabilities

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Refresh your understanding of Spring Boot testing capabilities to ensure a strong foundation for applying them in this course.

Browse courses on Spring Boot

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Review the Spring Boot testing context
Practice writing integration tests for Spring Boot applications

Follow JUnit 5 Tutorial on TutorialsPoint

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Enhance your JUnit 5 skills by following a structured tutorial that provides hands-on examples.

Browse courses on JUnit 5

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Visit the TutorialsPoint website.
Locate the JUnit 5 tutorial.
Follow the steps and complete the exercises.

Solve JUnit 5 Practice Problems

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Test your understanding of JUnit 5 concepts by solving practice problems and receiving immediate feedback.

Browse courses on JUnit 5

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Find online JUnit 5 practice problems.
Attempt to solve the problems.
Check your answers and identify areas for improvement.

Practice JUnit test case writing

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Enhance your proficiency in writing JUnit test cases through repetitive exercises, solidifying your understanding of test case design and execution.

Browse courses on JUnit

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Create test cases for a variety of Java classes
Practice using annotations and assertions in test cases
Debug and troubleshoot failing test cases

Create a JUnit 5 Test Suite for a Java Project

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Apply your JUnit 5 knowledge by creating a complete test suite for a Java project, ensuring thorough testing coverage.

Browse courses on JUnit 5

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Choose an existing Java project or create a new one.
Write JUnit 5 test cases for different scenarios.
Organize the test cases into a test suite.
Run the test suite and analyze the results.

Explore Mockito for mocking

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Learn about Mockito, a popular mocking framework for Java, to enhance your ability to test complex dependencies and improve code quality.

Browse courses on Mockito

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Understand the basics of mocking
Use Mockito to mock interfaces and classes
Verify method interactions using Mockito

Develop a Java Application with Comprehensive JUnit 5 Testing

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Enhance your understanding of JUnit 5 and Java development by building a full-scale application with extensive testing coverage.

Browse courses on JUnit 5

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Define the requirements and design of the application.
Implement the application's functionality.
Write comprehensive JUnit 5 test cases for all components.
Refactor and optimize the codebase.
Deploy and test the application in a production-like environment.

Practice writing Spring Boot test cases

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Enhance your practical skills in writing robust test cases for Spring Boot applications, ensuring reliable and maintainable code.

Browse courses on Spring Boot

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Create test cases for Spring Boot RESTful controllers
Practice using Spring Boot test annotations
Debug and troubleshoot Spring Boot test failures

Contribute to a JUnit 5 Open Source Project

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Deepen your understanding of JUnit 5 by actively contributing to an open source project, fostering teamwork and continuous improvement.

Browse courses on JUnit 5

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Identify a JUnit 5 open source project to contribute to.
Read the project's documentation and guidelines.
Create a feature branch and implement your changes.
Submit a pull request and address any feedback.
Merge your changes into the main branch.

Career center

Learners who complete Testing Spring Boot: Beginner to Guru will develop knowledge and skills that may be useful to these careers:

Software Test Engineer

Software Test Engineers are responsible for testing software applications to ensure they meet the requirements and quality standards. This course can help you become a Software Test Engineer by providing you with a solid foundation in testing principles and practices. You will learn how to write test cases, execute tests, and analyze results. You will also learn about different types of testing, such as unit testing, integration testing, and functional testing.

See salaries and explore the career path for Software Test Engineer

Quality Assurance Analyst

Quality Assurance Analysts are responsible for ensuring the quality of software products. This course can help you become a Quality Assurance Analyst by providing you with a comprehensive understanding of software testing and quality assurance principles. You will learn how to develop and implement quality assurance plans, conduct audits, and analyze test results.

See salaries and explore the career path for Quality Assurance Analyst

Test Automation Engineer

Test Automation Engineers are responsible for automating software testing processes. This course can help you become a Test Automation Engineer by providing you with the skills and knowledge you need to develop and implement automated test scripts. You will learn about different test automation tools and techniques, and how to integrate them into your testing process.

See salaries and explore the career path for Test Automation Engineer

Software Developer

Software Developers are responsible for designing, developing, and testing software applications. This course can help you become a Software Developer by providing you with a strong foundation in software development principles and practices. You will learn how to write code, debug code, and test code. You will also learn about different software development tools and technologies.

See salaries and explore the career path for Software Developer

Data Scientist

Data Scientists are responsible for collecting, analyzing, and interpreting data. This course can help you become a Data Scientist by providing you with a strong foundation in data science principles and practices. You will learn how to use data analysis tools and techniques to extract insights from data. You will also learn how to communicate your findings to stakeholders.

See salaries and explore the career path for Data Scientist

Business Analyst

Business Analysts are responsible for analyzing business needs and developing solutions to meet those needs. This course can help you become a Business Analyst by providing you with a strong foundation in business analysis principles and practices. You will learn how to gather requirements, analyze data, and develop solutions.

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Project Manager

Project Managers are responsible for planning, executing, and controlling projects. This course can help you become a Project Manager by providing you with a strong foundation in project management principles and practices. You will learn how to develop project plans, manage budgets, and track progress.

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Product Manager

Product Managers are responsible for defining, developing, and launching products. This course can help you become a Product Manager by providing you with a strong foundation in product management principles and practices. You will learn how to conduct market research, develop product roadmaps, and manage product launches.

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UX Designer

UX Designers are responsible for designing the user experience of products. This course can help you become a UX Designer by providing you with a strong foundation in UX design principles and practices. You will learn how to conduct user research, create prototypes, and design user interfaces.

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UI Designer

UI Designers are responsible for designing the visual appearance of products. This course can help you become a UI Designer by providing you with a strong foundation in UI design principles and practices. You will learn how to create mockups, develop style guides, and design user interfaces.

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Front-End Developer

Front-End Developers are responsible for developing the front-end of websites and applications. This course can help you become a Front-End Developer by providing you with a strong foundation in front-end development principles and practices. You will learn how to write HTML, CSS, and JavaScript.

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Back-End Developer

Back-End Developers are responsible for developing the back-end of websites and applications. This course can help you become a Back-End Developer by providing you with a strong foundation in back-end development principles and practices. You will learn how to write code that interacts with databases, servers, and other systems.

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Full-Stack Developer

Full-Stack Developers are responsible for developing both the front-end and back-end of websites and applications. This course can help you become a Full-Stack Developer by providing you with a strong foundation in both front-end and back-end development principles and practices.

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DevOps Engineer

DevOps Engineers are responsible for bridging the gap between development and operations. This course can help you become a DevOps Engineer by providing you with a strong foundation in DevOps principles and practices. You will learn how to automate build, test, and deployment processes.

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Cloud Engineer

Cloud Engineers are responsible for designing, deploying, and managing cloud infrastructure. This course may be useful if you are interested in becoming a Cloud Engineer, as it can help you build a foundation in cloud computing principles and practices. You will learn about different cloud platforms, such as AWS, Azure, and Google Cloud, and how to use them to build and deploy applications.

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