Kotlin Test Library

Lesson in the Kotlin Roadmap · Stage 38: Documentation

Last updated 14 September 2026

What is Kotlin Test Library?

kotlin.test is a library in Kotlin that provides a set of tools and functions for writing and running unit tests. It allows developers to verify that their code behaves as expected by defining test cases and assertions. These assertions check if the actual output of a function or code block matches the expected output, helping to ensure the correctness and reliability of Kotlin applications.

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Free resources to learn Kotlin Test Library

Official docskotlin.test
Official docsTest code using JUnit in JVM – tutorial

Kotlin Test Library: common questions

Can I learn Kotlin Test Library in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Kotlin Test Library in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Kotlin Test Library tutorial for beginners?

It is lesson 106 of 153 in the free Kotlin roadmap, in stage 38, Documentation. If you are new to Kotlin, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.