Silk Test Workbench provides built-in support for testing Apache Flex applications using Internet Explorer and the Standalone Flash Player, and Adobe AIR applications built with Apache Flex 4 or later.
Silk Test Workbench also supports multiple application domains in Apache Flex 3.x and 4.x applications, which enables you to test sub-applications. Silk Test Workbench recognizes each sub-application in the locator hierarchy tree as an application tree with the relevant application domain context. At the root level in the locator attribute table, Apache Flex 4.x sub-applications use the SparkApplication class. Apache Flex 3.x sub-applications use the FlexApplication class.
For a complete list of the record and playback controls available for Apache Flex testing, see the Flex Class Reference.