text: var insert = require('./insert')
  
  insert('group', [{
    t: 242424,
    online: 1
  }, {
    t: 4244,
    online: 0
  }], function (db, t, done) {
    db.a.group({
      key: {},
      cond: { t: { $gte: 86400 } },
      initial: { count: 0, online: 0 },
      reduce: function (doc, out) {
        out.count++
        out.online += doc.online
      },
      finalize: function (out) {
        out.avgOnline = out.online / out.count
      }
    }, function (err, curOnline) {
      t.error(err)
      t.equal(curOnline[0].count, 1)
      t.equal(curOnline[0].online, 1)
      done()
    })
  })
  