c = db.jstests_js9;
c.drop();

c.save({a: 1});
c.save({a: 2});

assert.eq(2, c.find().length());
assert.eq(2, c.find().count());

assert.eq(2, db.eval(function() {
    num = 0;
    db.jstests_js9.find().forEach(function(z) {
        num++;
    });
    return num;
}));