MockK is a popular mocking library specifically designed for Kotlin. It provides a DSL (Domain-Specific Language) that allows developers to easily mock behavior in their tests. Built specifically for the Kotlin language, MockK offers various features such as support for named parameters, object mocks, coroutines, and extension function mocking.

To get started with MockK, all you need is to add a dependency to the MockK library in your project. The library is compatible with Gradle, Maven, and Kotlin DSL. It also offers support for Spring and Quarkus frameworks, enabling easy mocking of beans.

With MockK, you can quickly create mocks and define their behaviors using a simple syntax. You can verify method calls, confirm that all stubbed methods are actually verified, and check for unnecessary stubbing. Additionally, MockK supports Kotlin 1.

4 and higher versions. In addition to providing a comprehensive documentation, MockK offers a wide range of examples, guides, and articles to help you master the art of mocking with Kotlin. Whether you are a beginner or an experienced developer, MockK is a powerful tool that will greatly simplify your testing process