test data

Add 3 new classes in different packages for selection teststests:

1. Class1 with 3 methods & inclusions
2. Class2 with 3 methods & motions
3. Class 3 with helper methods

Start by locating the selection tests and existing test-data classes or package conventions. Determine the required packages and how test fixtures are discovered, then add Class1, Class2, and Class3 with the methods and inclusions or motions listed in the issue. Done means the selection tests can use all three classes successfully.

Written by the indexing model from the issue text.