Loading...

Back-end Engineering

Foundations of TDD in Kotlin with JUnit: The Principles

This course introduces Test-Driven Development (TDD) for Kotlin projects, covering the Red-Green-Refactor workflow, TDD mindset, and setup with JUnit. Learn best practices like SOLID principles and dependency injection, and explore TDD's impact on code quality and speed compared to traditional approaches.

JUnit

Kotlin

See path

6 lessons

27 practices

4 hours

Programming, Algorithms, and Data Structures

Course details

Introduction to TDD with Kotlin and JUnit

Preview

Writing a Failing Test for TDD in Kotlin

Implement the Minimal Sum Function

Refactoring for Improved Readability and Maintainability in TDD

Next Course: Red-Green-Refactor: Practicing TDD with Kotlin & JUnit

Meet Cosmo:

The smartest AI guide in the universe

Our built-in AI guide and tutor, Cosmo, prompts you with challenges that are built just for you and unblocks you when you get stuck.

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.