Abstract: Aspects of the subject matter described herein relate to test-ready virtual environments. In aspects, a lab environment may be configured that includes multiple virtual machines. The virtual machines may be configured with deployment agents that can be used to install and configure programs on the virtual machines. The virtual machines may also be configured with test agents that can engage in testing activities with respect to the virtual machines. Lab agents may be installed in the virtual machines that manage and monitor the health of the deployment and test agents. Components are described that control configuring the virtual machines of the lab environment into a known state that is ready for development or testing. Various applications of the above are also described.