// Tests splitting a chunk twice
(function() {

    var s = new ShardingTest({name: "shard_keycount", shards: 2, mongos: 1, other: {chunkSize: 1}});

    dbName = "test";
    collName = "foo";
    ns = dbName + "." + collName;

    db = s.getDB(dbName);

    for (var i = 0; i < 10; i++) {
        db.foo.insert({_id: i});
    }

    // Enable sharding on DB
    s.adminCommand({enablesharding: dbName});
    s.ensurePrimaryShard(dbName, 'shard0001');

    // Enable sharding on collection
    s.adminCommand({shardcollection: ns, key: {_id: 1}});

    // Split into two chunks
    s.adminCommand({split: ns, find: {_id: 3}});

    coll = db.getCollection(collName);

    // Split chunk again
    s.adminCommand({split: ns, find: {_id: 3}});

    coll.update({_id: 3}, {_id: 3});

    // Split chunk again
    s.adminCommand({split: ns, find: {_id: 3}});

    coll.update({_id: 3}, {_id: 3});

    // Split chunk again
    // FAILS since the key count is based on the full index, not the chunk itself
    // i.e. Split point calc'd is 5 key offset (10 documents), but only four docs
    // in chunk with bounds _id : 0 => 5
    s.adminCommand({split: ns, find: {_id: 3}});

    s.stop();

});