https://neatguycoding.com/tags/kotlin/Recent content in Kotlin on Neat Guy CodingHugo -- gohugo.ioen© 2026 NeatGuyCodingWed, 06 May 2026 00:00:00 +0000https://neatguycoding.com/posts/supercharge-spring-boot-tests-with-kotlin-dsl-power-by-urs-peter-spring-io-202/Wed, 06 May 2026 00:00:00 +0000https://neatguycoding.com/posts/supercharge-spring-boot-tests-with-kotlin-dsl-power-by-urs-peter-spring-io-202/Spring Boot and Kotlin interoperate maturely on the JVM; teams often introduce Kotlin first in <code>src/test</code>, applying extension functions, default parameters, type-safe DSLs, and assertion styles such as Kotest in integration tests and <code>MockMvc</code> scenarios to cut boilerplate and tighten failure messages. Meanwhile, Java builders, overloaded static helpers, and Project Reactor’s <code>StepVerifier</code> each carry their own cognitive cost; the article organizes common motivations by dependency layer, alignable public APIs, and semantic boundaries to watch (e.g. JVM type erasure, whether reactive verification truly completes subscription).