assert dataOwner.peek(fqn, false) != null : "Should have data";
assert dataOwner.peek(new Fqn(BuddyManager.BUDDY_BACKUP_SUBTREE_FQN, BuddyManager.getGroupNameFromAddress(buddy.getLocalAddress())), false) != null : "Should have backup node for buddy";
assert dataOwner.peek(new Fqn(BuddyManager.BUDDY_BACKUP_SUBTREE_FQN, BuddyManager.getGroupNameFromAddress(dataOwner.getLocalAddress())), false) == null : "Should NOT have backup node for self!";
assert buddy.peek(fqn, false) == null : "Should not have data";
assert buddy.peek(new Fqn(BuddyManager.BUDDY_BACKUP_SUBTREE_FQN, BuddyManager.getGroupNameFromAddress(buddy.getLocalAddress())), false) == null : "Should NOT have backup node for self!";
assert buddy.peek(new Fqn(BuddyManager.BUDDY_BACKUP_SUBTREE_FQN, BuddyManager.getGroupNameFromAddress(dataOwner.getLocalAddress())), false) != null : "Should have backup node for buddy";
assert buddy.peek(BuddyManager.getBackupFqn(dataOwner.getLocalAddress(), fqn), false) != null : "Should have backup data";
// now do a gravitate call.
assert buddy.get(fqn, key).equals(value) : "Data should have gravitated!";