t = db.ts1;
t.drop();

N = 20;

for (i = 0; i < N; i++) {
    t.insert({_id: i, x: new Timestamp()});
    sleep(100);
}

function get(i) {
    return t.findOne({_id: i}).x;
}

function cmp(a, b) {
    if (a.t < b.t)
        return -1;
    if (a.t > b.t)
        return 1;

    return a.i - b.i;
}

for (i = 0; i < N - 1; i++) {
    a = get(i);
    b = get(i + 1);
    // print( tojson(a) + "\t" + tojson(b) + "\t" + cmp(a,b) );
    assert.gt(0, cmp(a, b), "cmp " + i);
}

assert.eq(N, t.find({x: {$type: 17}}).itcount(), "B1");
assert.eq(0, t.find({x: {$type: 3}}).itcount(), "B2");

t.insert({_id: 100, x: new Timestamp(123456, 50)});
x = t.findOne({_id: 100}).x;
assert.eq(123456, x.t, "C1");
assert.eq(50, x.i, "C2");