public void testAddMember() {
FetchGroup fg = pm.getFetchGroup(Employee.class, "testAddMember");
for (int i = 0; i < allMembers.length; ++i) {
String member = allMembers[i];
fg.addMember(member);
Set members = fg.getMembers();
assertTrue("FetchGroup should contain " + member + " but does not.\n"
+ printFetchGroup(fg),
members.contains(member));
assertEquals("FetchGroup should contain " + i+1