@Test
public void removeMemberFromGroup() throws CatalogException {
catalogManager.getStudyManager().createGroup(String.valueOf(studyFqn), groupMember, studyAdminUser1 + "," + studyAdminUser2,
ownerSessionId);
updateGroup(studyFqn, groupMember, null, studyAdminUser1, null, ownerSessionId);
assertFalse(getGroupMap().get(groupMember).getUserIds().contains(studyAdminUser1));
updateGroup(studyFqn, groupMember, null, studyAdminUser2, null, ownerSessionId);
assertFalse(getGroupMap().get(groupMember).getUserIds().contains(studyAdminUser2));
catalogManager.getStudyManager().deleteGroup(studyFqn, groupMember, ownerSessionId);
assertNull(getGroupMap().get(groupMember));
}