Abstract: Apparatus and methods can be implemented to perform software testing or to perform emulated hardware testing using a cloud architecture that can utilize centralized testing technology and can enable scaling up to test for multiple tenants and scaling up to arbitrary numbers of programs tested for each tenant. A user can configure an initial test virtual machine on a cloud platform for a cloud service over a physical network such as the Internet. Components of the cloud architecture can create a set of clones of the initial test virtual machine and inject tools into each clone for testing. Testing of one or more clones of the set can be conducted in an environment isolated from the physical network and isolated from a backend of the cloud service. Additional apparatus, systems, and methods are disclosed.