example.js

var randomName = require('random-name')
var Iterator   = require('async-iterator')
var shasum     = require('shasum')
var test       = require('tape')
var assert     = require('assert')
var fs         = require('fs')

try {
  fs.unlinkSync('/tmp/whatever-test.json.sst')
} catch (_) {}

var l = 200, array = [], names = {}
while(l --) {
  var n = randomName(), d = new Date() + '_' + Math.random() + '-' + shasum(n)
  names[n] = d
  array.push({key: n, value: d })
}

array.sort(function (a, b) {
  return a.key < b.key ? -1 : a.key > b.key ? 1 : 0 
})

var it = Iterator(function (i, cb) {
  cb(null, array[i])
})

var SST = require('./')

SST.createSST('/tmp/whatever-test.json.sst', it, function (err, sst) {
  console.log('READY', err, sst)

  test('forward', function (t) {
    var it = sst.iterator()
    t.plan(200)
    var i = 0

    ;(function next () {
      it.next(function (err, item) {
        if(item == null)
          return t.end()

        t.deepEqual(item, array[i++])
        next()
      })
    })();

  })

  test('reverse', function (t) {
    var it = sst.iterator({reverse: true})
    t.plan(200)

    var i = array.length

    ;(function next () {
      it.next(function (err, item) {
        if(item == null)
          return t.end()
        --i

        t.deepEqual(item, array[i])
        assert.deepEqual(item, array[i])
        next()
      })
    })();

  })

})