/**
* Returns the group that is parent of the specified mockGroup or null if no parent was found.
*
* @param mockGroup the group whose parent we're looking for.
* @return the MockContactGroup instance that mockGroup belongs to or null if no parent was found.
*/
public MockContactGroup findGroupParent(MockContactGroup mockGroup) {
if (subGroups.contains(mockGroup)) return this;
Iterator<ContactGroup> subGroupsIter = subgroups();
while (subGroupsIter.hasNext()) {
MockContactGroup subgroup = (MockContactGroup) subGroupsIter.next();
MockContactGroup parent = subgroup.findGroupParent(mockGroup);
if (parent != null) return parent;
}
return null;
}
