//
// Tests that we can dump collection metadata via getShardVersion()
//

var st = new ShardingTest({ shards : 2, mongos : 1 });
st.stopBalancer();

var mongos = st.s0;
var coll = mongos.getCollection( "foo.bar" );
var admin = mongos.getDB( "admin" );
var shards = mongos.getCollection( "config.shards" ).find().toArray();
var shardAdmin = st.shard0.getDB( "admin" );

assert( admin.runCommand({ enableSharding : coll.getDB() + "" }).ok );
printjson( admin.runCommand({ movePrimary : coll.getDB() + "", to : shards[0]._id }) );
assert( admin.runCommand({ shardCollection : coll + "", key : { _id : 1 } }).ok );

assert( shardAdmin.runCommand({ getShardVersion : coll + "" }).ok );
printjson( shardAdmin.runCommand({ getShardVersion : coll + "", fullMetadata : true }) );

// Make sure we have chunks info
var result = 
    shardAdmin.runCommand({ getShardVersion : coll + "", fullMetadata : true });
var metadata = result.metadata;

assert.eq( metadata.chunks.length, 1 );
assert.eq( metadata.pending.length, 0 );
assert( metadata.chunks[0][0]._id + "" == MinKey + "" );
assert( metadata.chunks[0][1]._id + "" == MaxKey + "" );
assert( metadata.shardVersion + "" == result.global + "" );

// Make sure a collection with no metadata still returns the metadata field
assert( shardAdmin.runCommand({ getShardVersion : coll + "xyz", fullMetadata : true })
        .metadata != undefined );

// Make sure we get multiple chunks after a split
assert( admin.runCommand({ split : coll + "", middle : { _id : 0 } }).ok );

assert( shardAdmin.runCommand({ getShardVersion : coll + "" }).ok );
printjson( shardAdmin.runCommand({ getShardVersion : coll + "", fullMetadata : true }) );

// Make sure we have chunks info
result = shardAdmin.runCommand({ getShardVersion : coll + "", fullMetadata : true });
metadata = result.metadata;

assert.eq( metadata.chunks.length, 2 );
assert.eq( metadata.pending.length, 0 );
assert( metadata.chunks[0][0]._id + "" == MinKey + "" );
assert( metadata.chunks[0][1]._id == 0 );
assert( metadata.chunks[1][0]._id == 0 );
assert( metadata.chunks[1][1]._id + "" == MaxKey + "" );
assert( metadata.shardVersion + "" == result.global + "" );

st.stop();