try {
assigned = new TabletLocationState(root, server, null, null, null, false);
} catch (BadLocationStateException e) {
fail("Unexpected error " + e);
}
tstore.unassign(Collections.singletonList(assigned));
count = 0;
for (TabletLocationState location : tstore) {
assertEquals(location.extent, root);
assertNull(location.future);
assertNull(location.current);