### Question:
OtherActivityPresentation extends PresentationModel<OtherActivity> { public String getDescription() { return getBean().getLabel(); } OtherActivityPresentation(final OtherActivity oa); String getName(); String getDescription();  }### Answer:
@Test public void testChangePropagates() { d_dm.setValue("foo"); assertEquals(d_oa.getDescription(), d_dm.getValue()); }