checkAdds(values);

        // need to make this better
        assertTrue(cacheFile.length() < (long) (1.4 * 1.4 * len));

        cache.close();
    }

    @Test
    public void persistsRemovalOfEntries() {
        createCache();
        checkAddsAndRemoves(1, 2, 3, 4, 5);
        verifyAndCloseCache();
    }

    @Test
    public void persistsRemovalOfEntriesInReverse() {
        createCache();