Resource description framework (rdf) is a standard model for data interchange on the web.

test::rdf provides tools for testing code which deals with rdf. it can test rdf for validity, check if two rdf graphs are the same, or subgraphs of each other, if a uri is or is not in a dataset, if it has certain subjects, predicates, objects or literals. it can also test to see if a full pattern is present or absent.