Chef InSpec is an open-source testing framework for infrastructure with a human- and machine-readable language for specifying compliance, security and policy requirements.
Molecule is designed to aid in the development and testing of Ansible roles.
With Serverspec, you can write RSpec tests for checking your containers, images or servers are built and configured correctly.
Test Kitchen is an integration tool for developing and testing infrastructure code and software on isolated target platforms.
RSpec tests for your AWS resources.
TaskCat is a python framework for validation of Cloudformation templates over multiple regions and avalability zones
Terratest is a Go library that makes it easier to write automated tests for your infrastructure code.