0.6.0 highlight: headless UI testing It's now possible to use any Decouple component in a headless mode where an instrumented design system allowing the pause the application and events. This mode is entirely multiplatform, in that you can test your application even on platforms your application doesn't support (e.g. test your JS application on the JVM to use the better tooling). You can learn more about it in the documentation. Here's how you can use it to test the state of a simple counter: