
fast-check
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| Fact | fast-check | jqwik |
|---|---|---|
| Purpose | fast-check is a property-based testing library for JavaScript and TypeScript that generates inputs, runs assertions over many cases, and shrinks failures to smaller counterexamples. | jqwik brings property-based testing to the JVM, focusing mainly on Java and Kotlin, with Groovy also supported. |
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It suits JavaScript and TypeScript developers who want to check behavior across generated inputs, including stateful scenarios. Its runner-agnostic design can fit projects using a range of test runners.
jqwik suits JVM programmers writing property-based checks in Java, Kotlin, or Groovy. It fits projects already using JUnit 5 with Gradle or Maven.