We have created a polyglot test framework named Polytrix to compare, benchmark, and independently verify a suite of open-source OpenStack SDKs that each target a different programming language. The framework validates sample code from each SDK against a shared test scenario to validate that each SDK correctly implements a given scenario. It uses Pacto for integration contract testing between the SDKs and the OpenStack services, and generates test reports that help compare and document each SDK. It is designed so interactive training materials can be generated in future versions.