Changed from module to class
Renamed to be clearer in purpose
Moved namespaced_fragments to DiagramFragmentsToXMLFragments
Renamed to reflect change in tested class name.
Removed functionality from class
Interfaces created to test parameter_mixin and constructors that require a valid hash containing parameters.
Refactored to use TestParameterMixinMixin and TestConstructorRequiresHashMixin
XMLFragment will be the adapter which contains a node
More brainstorming.