Test Driven Development (TDD) Training in Copenhagen, Denmark

Test-Driven Development (TDD) training teaches participants how to adopt a test-first approach to software development, where tests are written before the actual code. The course covers the core principles of TDD, including writing failing tests, implementing code to pass the tests, and refactoring for cleaner design. Participants learn how to use testing frameworks, such as JUnit, NUnit, or pytest, to write unit tests that drive the development process. Hands-on exercises focus on writing effective test cases, maintaining a fast feedback loop, and ensuring code quality through continuous testing. By the end of the training, attendees are equipped to apply TDD practices in their own development workflow, resulting in more reliable and maintainable software.

Introduction to TDD and the Red-Green-Refactor Cycle

• Introduction to Test-Driven Development (TDD)

• What is TDD and why is it important?

• The benefits of TDD: improved software design, cleaner code, fewer bugs, faster development.

• TDD in the context of Agile software development.

• TDD vs. traditional testing approaches.

• The Red-Green-Refactor Cycle

• Introduction to the Red-Green-Refactor cycle:

• Red: Write a failing test.

• Green: Write just enough code to pass the test.

• Refactor: Improve the code without changing its behavior.

• Hands-On Exercise

• Writing the First Test

• How to write effective and meaningful unit tests.

• Choosing which behavior to test and how to create effective assertions.

• Hands-On Exercise

• Writing Code to Pass Tests

• Writing the minimal code to make the test pass.

• Importance of simplicity and focusing on the immediate goal.

• Hands-On Exercise

• Refactoring the Code

• What is refactoring and why is it essential in TDD?

• Refactoring principles: improving the design without altering behavior.

• Hands-On Exercise

• Summary and Q&A

• Recap of key concepts learned on Day 1.

• Open Q&A session to address any doubts or questions.

Advanced TDD Practices and Application

• Test-First Development

• What is test-first development, and how does it differ from traditional development approaches?

• Writing tests before code: the “test-first” approach and its advantages.

• Hands-On Exercise

• Working with Mocking and Stubbing in TDD

• What is mocking and stubbing in the context of unit testing?

• How to use mock objects to isolate dependencies.

• Hands-On Exercise

• TDD for Complex Systems

• Scaling TDD for complex systems with multiple dependencies.

• Using TDD with legacy codebases and refactoring for testability.

• Handling edge cases and writing tests for complex logic.

• Hands-On Exercise

• Refactoring Legacy Code with TDD

• How to integrate TDD into existing systems with legacy code.

• Using TDD to incrementally improve code quality and refactor legacy code.

• Hands-On Exercise

• Best Practices for TDD

• Writing maintainable and readable tests.

• TDD in agile environments: collaboration with team members and stakeholders.

• How to deal with the challenges and limitations of TDD.

• Hands-On Exercise

• Integrating TDD into Your Development Workflow

• Best practices for integrating TDD into continuous integration/continuous deployment (CI/CD) pipelines.

• Automated testing and running unit tests as part of the build process.

• How to manage test dependencies, speed, and coverage.

• Final Project: Building a Feature with TDD

• Applying everything learned in the course to build a feature using TDD.

• Working through the Red-Green-Refactor cycle and writing tests for each piece of functionality.

• Reviewing and refining tests and code with the group.

• Course Summary and Q&A

• Recap of key concepts learned throughout the course.

• Final Q&A session to address any remaining questions or challenges in implementing TDD.