STC is a developer oriented framework for testing and debugging running ONOS clusters. It allows modular definition and composition of test scenarios, as well as reuse of test modules. Developers can use scenarios in a semi-automated or fully automated manner. STC tracks dependencies between scenarios and allows parallel execution of steps that don't depend on each other to improve performance and to allow modeling concurrent activities like running a step on each node in a cluster. Larger scenarios can be built up from smaller scenarios allowing reuse of tests. STC is integrated into the cell framework and can be used to deploy and test on a cell.

Key Concepts and Terminology

• cell - definition of a set of resources used to run an ONOS cluster
• stc - framework for execution and verification of scenarios
• scenario - a reusable logical grouping of steps to accomplish some task
• step - a single unit of execution within a scenario. A step can be a call to bash, python, or other executable