'use strict'
  
  var test = require('tape').test
  var msgpack = require('../')
  var bl = require('bl')
  
  function build (size, obj) {
    var array = []
    var i
  
    for (i = 0; i < size; i++) {
      array.push(obj)
    }
  
    return array
  }
  
  function computeLength (array) {
    var length = 1 // the header
    var multi = 1
  
    if (array[0] && typeof array[0] === 'string') {
      multi += array[0].length
    }
  
    length += array.length * multi
  
    return length
  }
  
  test('encode/decode arrays up to 15 elements', function (t) {
    var encoder = msgpack()
    var all = []
    var i
  
    for (i = 0; i < 16; i++) {
      all.push(build(i, 42))
    }
  
    for (i = 0; i < 16; i++) {
      all.push(build(i, 'aaa'))
    }
  
    all.forEach(function (array) {
      t.test('encoding an array with ' + array.length + ' elements of ' + array[0], function (t) {
        var buf = encoder.encode(array)
        // the array is full of 1-byte integers
        t.equal(buf.length, computeLength(array), 'must have the right length')
        t.equal(buf.readUInt8(0) & 0xf0, 0x90, 'must have the proper header')
        t.equal(buf.readUInt8(0) & 0x0f, array.length, 'must include the array length')
        t.end()
      })
  
      t.test('mirror test for an array of length ' + array.length + ' with ' + array[0], function (t) {
        t.deepEqual(encoder.decode(encoder.encode(array)), array, 'must stay the same')
        t.end()
      })
    })
  
    t.end()
  })
  
  test('decoding an incomplete array', function (t) {
    var encoder = msgpack()
  
    var array = ['a', 'b', 'c']
    var size = computeLength(array)
    var buf = new Buffer(size)
    buf[0] = 0x90 | array.length + 2 // set bigger size
    var pos = 1
    for (var i = 0; i < array.length; i++) {
      var obj = encoder.encode(array[i], true)
      obj.copy(buf, pos)
      pos += obj.length
    }
    buf = bl().append(buf)
    var origLength = buf.length
    t.throws(function () {
      encoder.decode(buf)
    }, encoder.IncompleteBufferError, 'must throw IncompleteBufferError')
    t.equals(origLength, buf.length, 'must not consume any byte')
    t.end()
  })