ProtwordsFile.ProtwordsUpdater updater = protwordsFile.new ProtwordsUpdater(item);

        // Try to write a different item with same ID
        ProtwordsItem differentItem = new ProtwordsItem(1, "differentValue");

        try {
            updater.write(differentItem);
            fail("Should throw DictionaryException");
        } catch (DictionaryException e) {

    coalesced.put(Range.atLeast(1), 1);
    coalesced.putCoalescing(Range.atMost(1), 1);
    TreeRangeMap<Integer, Integer> differentValues = TreeRangeMap.create();
    differentValues.put(Range.closedOpen(1, 2), 2);
    differentValues.put(Range.closedOpen(3, 4), 2);
    TreeRangeMap<Double, Integer> differentTypes = TreeRangeMap.create();
    differentTypes.put(Range.closedOpen(1.0, 2.0), 2);