Use the following code snippet to answer the question below.

During the $2022$ Census, the ages of the houseroccupants was required for statistics purposes. The getClientAge$()?$ method was used to determine the age. Outtine all the test cases and oracle that are needed to do a full black box unit test of getClientAge$()?$Assume maximum human lifespan is $100$ years.Outline all the test cases and oracle that are needed to do a full black box unit test of getClientAge$()?[6$ marks$]$