@Test
public void testCoverBoundingBoxWithHashLength3AroundBoston() {

    Set<String> hashes = coverBoundingBox(SCHENECTADY_LAT, SCHENECTADY_LON,
            HARTFORD_LAT, HARTFORD_LON, 3).getHashes();
    assertEquals(Sets.newHashSet("dr7", "dre", "drk", "drs"), hashes);
}