Software (such as server products) operating in a complex networked environment often run on multi-machine installations that are known as machine clusters. A server product can be tested on a server machine type. The server product can be tested by tracking the constituent machines of a machine cluster, and configuring and recording the roles that each machine in the machine cluster plays. Scenarios targeting a single server machine-type can be seamlessly mapped from the single machine scenario to a machine cluster of any number of machines, while handling actions such as executing tests and gathering log files from all machines of a machine cluster as a unit.