TypeResolver typeResolver = new ClassTypeResolver(new HashSet<String>(),classLoader );
typeResolver.addImport("org.drools.workbench.models.testscenarios.backend.MatryoshkaDoll");
MatryoshkaDoll matryoshkaDoll = new MatryoshkaDoll();
FactAssignmentField factAssignmentField = createFactAssignmentField();
addFactAssignmentFieldIntoFactAssignmentField(factAssignmentField, 5);
FactAssignmentFieldPopulator factAssignmentFieldPopulator = new FactAssignmentFieldPopulator(matryoshkaDoll, factAssignmentField, typeResolver, classLoader);
factAssignmentFieldPopulator.populate(new HashMap<String, Object>());