ZK Application Test Suite is a collection of tools which can help users test their ZK-based application.
Currently this suite has one module:
ZATS Mimic, a unit-test library that can be used with any well-known unit test framework (e.g. JUnit and TestNG) to test your ZUL without an application server or a browser.
All source code mentioned in this book can be found in https://github.com/zkoss/zats/tree/master/zats-example.