@Test
public void shouldUpdateGroupIfExists() throws Exception {
String[] newUsers = {"1", "2", "3"};
String groupName = "All_Users";
Group group = new Group();
String[] existingUsers = {"4", "5"};
group.setUsers(existingUsers);
group.setName(groupName);
doReturn(group).when(mockAllGroups).getGroupByName(groupName);
spyCommcareGateway.createOrUpdateGroup(groupName, newUsers);
ArgumentCaptor<Group> groupCaptor = ArgumentCaptor.forClass(Group.class);
verify(mockAllGroups).update(groupCaptor.capture());
assertThat(groupCaptor.getValue().getUsers(), is(ArrayUtils.addAll(existingUsers, newUsers)));
assertThat(groupCaptor.getValue().getName(), is(groupName));
}
