// Test to make sure that tag ranges get split
(function() {

    var s = new ShardingTest(
        {name: "tag_auto_split", shards: 2, mongos: 1, other: {enableBalancer: true}});

    db = s.getDB("test");

    s.adminCommand({enablesharding: "test"});
    s.ensurePrimaryShard('test', 'shard0001');
    s.adminCommand({shardcollection: "test.foo", key: {_id: 1}});

    assert.eq(1, s.config.chunks.count());

    sh.addShardTag("shard0000", "a");

    sh.addTagRange("test.foo", {_id: 5}, {_id: 10}, "a");
    sh.addTagRange("test.foo", {_id: 10}, {_id: 15}, "b");

    assert.soon(function() {
        return s.config.chunks.count() == 3;
    }, "things didn't get split", 1000 * 60 * 10, 1000);

    s.printShardingStatus();

    s.stop();

    // test without full shard key on tags
    s = new ShardingTest(
        {name: "tag_auto_split2", shards: 2, mongos: 1, other: {enableBalancer: true}});

    db = s.getDB("test");

    s.adminCommand({enablesharding: "test"});
    s.ensurePrimaryShard('test', 'shard0001');
    s.adminCommand({shardcollection: "test.foo", key: {_id: 1, a: 1}});

    assert.eq(1, s.config.chunks.count());

    sh.addShardTag("shard0000", "a");

    sh.addTagRange("test.foo", {_id: 5}, {_id: 10}, "a");
    sh.addTagRange("test.foo", {_id: 10}, {_id: 15}, "b");

    assert.soon(function() {
        return s.config.chunks.count() == 3;
    }, "things didn't get split", 1000 * 60 * 10, 1000);

    s.config.chunks.find().forEach(function(chunk) {
        var numFields = 0;
        for (var x in chunk.min) {
            numFields++;
            assert(x == "_id" || x == "a", tojson(chunk));
        }
        assert.eq(2, numFields, tojson(chunk));
    });

    // check chunk mins correspond exactly to tag range boundaries, extended to match shard key
    assert.eq(
        1, s.config.chunks.find({min: {_id: 5, a: MinKey}}).count(), "bad chunk range boundary");
    assert.eq(
        1, s.config.chunks.find({min: {_id: 10, a: MinKey}}).count(), "bad chunk range boundary");

    s.stop();

})();