@Test
public void testCoverBoundingBoxWithHashLengthOneAroundBoston() {

    Coverage coverage = coverBoundingBox(SCHENECTADY_LAT, SCHENECTADY_LON,
            HARTFORD_LAT, HARTFORD_LON, 1);
    assertEquals(Sets.newHashSet("d"), coverage.getHashes());
    assertEquals(1, coverage.getHashLength());
    System.out.println(coverage.getRatio());
    assertEquals(1694.6984366342194, coverage.getRatio(), PRECISION);
}