public void Can_GeoHash()
{
redis.FlushDb();
redis.GeoAdd("Sicily",
new RedisGeo(13.361389, 38.115556, "Palermo"),
new RedisGeo(15.087269, 37.502669, "Catania"));
var hashes = redis.GeoHash("Sicily", "Palermo", "Catania");
Assert.That(hashes[0], Is.EqualTo("sqc8b49rny0"));
Assert.That(hashes[1], Is.EqualTo("sqdtr74hyu0"));
hashes = redis.GeoHash("Sicily", "Palermo", "NonExistingMember", "Catania");
Assert.That(hashes[0], Is.EqualTo("sqc8b49rny0"));
Assert.That(hashes[1], Is.Null);
Assert.That(hashes[2], Is.EqualTo("sqdtr74hyu0"));
}