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Test-Driven Development (TDD) and JUnit Essentials | TDD, JUnit 5, Refactoring, Mocking, Best Practices (TT3503)

4.6 out of 5 rating

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3 Days

18 CPD hours

About this course

This programming course is for students with hands-on Java development experience. Attending titles may include Software Developers and Programmers, Agile Practitioners, Quality Assurance Professionals, Software Testers, Product Owners, Project Managers, IT Managers or Software Engineers.


Working in a hands-on learning environment, guided by our expert team, you'll explore: - The role of Unit Testing in software development and testing - How to write effective Unit Testing - The properties of effective unit tests - The benefits of the test-first and Test-Driven Development - Techniques and practices to aid in the successful adoption of Test-Driven Development - JUnit and the JUnit Test Runner interface. - How to use JUnit to drive the implementation of Java code. - The role of debugging when done in conjunction with tests. -The fundamentals of the TDD using Java, as well as its importance, uses, strengths and weaknesses. - Understand how JUnit affects your perspective on development and increases your focus on a task. - Good JUnit coding style. - How to Create well-structured JUnit programs. - How to Compile and execute programs using JUnit and DBUnit - How to extend testing with mock objects using Mockito. - Refactoring techniques available to make code as reusable/robust as possible. - Various testing techniques.


Test Driven Development (TDD) and Unit Testing Essentials is a three-day, comprehensive hands-on test-driven development / JUnit / TDD training course geared for developers who need to get up and running with essential Test-driven development programming skills using JUnit and various open-source testing frameworks. Throughout the course you'll learn, explore and gain practical experience working with best practices for writing great programs in Java, using test-driven development techniques. This course quickly introduces you to the core features and benefits of JUnit. You'll leave this course armed with the skills required to leverage solid test driven development and unit testing techniques, using the latest industry techniques and best practices. Throughout the course, you'll work on a project with labs specifically oriented towards using TDD to implement a complex and multi-faceted web application that uses a database in its final form.

Session: Introducing Test-driven Development Lesson: Test-Driven Development Rationale for TDD The process of TDD Advantages to TDD Side-effects of TDD Tools to support TDD Tutorial: Setup IntelliJ for Using Maven OR Using Eclipse Tutorial Session: Unit Testing using JUnit Lesson: Unit Testing Fundamentals Purpose of Unit Testing Good Unit Tests Test Stages Unit Testing Vs Integration Testing Understanding Unit Testing Frameworks Lesson: Jumpstart: JUnit 5.x Understand and work with the features of JUnit Write unit tests using @Test annotation Test Result Verification (Assertions) Manage fixtures using @BeforeEach, @AfterEach, @BeforeAll and @AfterAll annotations Maven setup using Surefire plugin Lab: Demo JUnit Lab: Build JUnit Case Study Lab: Jumpstart JUnit Lesson: Annotations Use @DisplayName to specify a custom name for the test Check for exceptions thrown by test Use @Disabled to prevent a test class or method from running Use timeouts to fail test that take longer than required Test Execution Order Lab: Working with @Test Annotation Lesson: Hamcrest Learn the notation of assertThat Know the objective of Hamcrest library Use Hamcrest's logical and object matchers Use Hamcrest's number and collection matchers Lab: Working with Hamcrest Lesson: Parameterized Tests The @ParameterizedTest annotation A parameterized test to test code under several conditions Define different sources for test data (@ValueSource, @CsvSource, @CsvFileSource,@EnumSource, @MethodSource, @ArgumentSource) Lab: Working with Parameterized Tests Lesson: Advanced Features JUnit 4 vs JUnit 5 Nested Unit Tests Repeated Tests JUnit Extensions ExecutionConditions Lambda Support Grouped Assertions Lab: Working with Advanced Features Lesson: JUnit Best Practices "Good" Tests Bad Smell White-Box Unit Testing Black-Box Unit Testing Automation and Coverage Session: Mocking Lesson: Mocking of Components Why We use Test Dummies Mock Objects Working with Mock Objects Using Mocks with the User Interface Mock Object Strategies Lesson: Mock Objects and Mockito Mockito Description and Features Mockito Object Lifecycle JUnit 5 and Mockito Dependency Injection Stubs Using ArgumentMatchers Verifying Behavior in Mockito Partial Mock Objects The Spy annotation Lab: Mock Object and Mockito Lesson: PowerMock PowerMock Description and Features Using PowerMockito @PrepareForTest Mocking a final class or final method Mocking a Static Method Session: Advanced Topics Lesson: State-based vs. Interaction-based Testing State-based Testing Interaction-based Testing Mock Objects Support Each Approach Three Areas to Check in a Test Lab: Interaction-based Testing Lesson: Improving Code Quality Through Refactoring Refactoring Overview Refactoring and Testing Refactoring to Design Patterns Lab: Refactoring Lab: Best Practices - Refactoring Tests Lesson: Database Testing: DbUnit Setting up DbUnit Defining a Dataset File in XML, CSV or Excel Writing a DbUnit Test Class Assert the results Use the FailureHandler and ValueComparer Using Date and Time in test sets Export a data set Lab: Introduction to DbUnit Lab: DbUnit Assertions Lab (OPTIONAL): Selenium and DbUnit
Additional course details:

Nexus Humans Test-Driven Development (TDD) and JUnit Essentials | TDD, JUnit 5, Refactoring, Mocking, Best Practices (TT3503) training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward.

This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts.

Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success.

While we feel this is the best course for the ITS Data Analytics course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you.

Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Training Insurance Included!

When you organise training, we understand that there is a risk that some people may fall ill, become unavailable. To mitigate the risk we include training insurance for each delegate enrolled on our public schedule, they are welcome to sit on the same Public class within 6 months at no charge, if the case arises.

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Global Schedule

GTR = Guarenteed to Run

11 Dec 24 Enquire Book
15:00 - 23:00Live Online1
15 May 24 Enquire Book
15:00 - 23:00Live Online1

17 Jul 24 Enquire Book
15:00 - 23:00Live Online1
18 Sep 24 Enquire Book
15:00 - 23:00Live Online1
30 Oct 24 Enquire Book
14:00 - 22:00Live Online1

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