Articles

Lifting Kotlin testing: Comparing JUnit, Kotlin-test, Kotest, Prepared and TestBalloon

June 17, 2025 – Ivan “CLOVIS” Canet

Ivan compares several aspects of current Kotlin test frameworks in great detail and concludes:

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With the recent birth of TestBalloon, we can see that there is still a lot of innovating in the space of test frameworks. Even after JUnit's dominance in the JVM ecosystem, we can still make tests easier to write and maintain. Kotlin makes possible patterns that we couldn't dream of in the Java world.