'use strict'


var toString = require('./');
var t = require('tape')
var b2ab = require('buffer-to-arraybuffer')
var isBrowser = require('is-browser')
var str2ab = require('string-to-arraybuffer')

t('basics', t => {
    t.equal(
        toString(new Uint8Array([ 72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33 ])),
        'Hello World!'
    )
    t.end()
})

t('utf8 buffer to base64', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('Ձאab', 'utf8')), 'base64'),
    '1YHXkGFi'
  )
  t.end()
})

t('utf8 buffer to hex', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('Ձאab', 'utf8')), 'hex'),
    'd581d7906162'
  )
  t.end()
})

t('utf8 to utf8', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('öäüõÖÄÜÕ', 'utf8')), 'utf8'),
    'öäüõÖÄÜÕ'
  )
  t.end()
})

t('utf16le to utf16', function (t) {
  t.equal(
    toString(b2ab(Buffer.from(toString(b2ab(Buffer.from('abcd', 'utf8')), 'utf16le'), 'utf16le')), 'utf8'),
    'abcd'
  )
  t.end()
})

t('utf16le to hex', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('abcd', 'utf16le')), 'hex'),
    '6100620063006400'
  )
  t.end()
})

t('ascii buffer to base64', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('123456!@#$%^', 'ascii')), 'base64'),
    'MTIzNDU2IUAjJCVe'
  )
  t.end()
})

t('ascii buffer to hex', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('123456!@#$%^', 'ascii')), 'hex'),
    '31323334353621402324255e'
  )
  t.end()
})

t('base64 buffer to utf8', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('1YHXkGFi', 'base64')), 'utf8'),
    'Ձאab'
  )
  t.end()
})

t('hex buffer to utf8', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('d581d7906162', 'hex')), 'utf8'),
    'Ձאab'
  )
  t.end()
})

t('base64 buffer to ascii', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('MTIzNDU2IUAjJCVe', 'base64')), 'ascii'),
    '123456!@#$%^'
  )
  t.end()
})

t('hex buffer to ascii', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('31323334353621402324255e', 'hex')), 'ascii'),
    '123456!@#$%^'
  )
  t.end()
})

t('base64 buffer to binary', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('MTIzNDU2IUAjJCVe', 'base64')), 'binary'),
    '123456!@#$%^'
  )
  t.end()
})

t('hex buffer to binary', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('31323334353621402324255e', 'hex')), 'binary'),
    '123456!@#$%^'
  )
  t.end()
})

t('utf8 to binary', function (t) {
  /* jshint -W100 */
  t.equal(
    toString(b2ab(Buffer.from('öäüõÖÄÜÕ', 'utf8')), 'binary'),
    'öäüõÖÄÜÕ'
  )
  /* jshint +W100 */
  t.end()
})

t('utf8 replacement chars (1 byte sequence)', function (t) {
  t.equal(
    toString(b2ab(Buffer.from([ 0x80 ]))  ),
    '\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0x7F ]))  ),
    '\u007F'
  )
  t.end()
})

t('utf8 replacement chars (2 byte sequences)', function (t) {
  t.equal(
    toString(b2ab(Buffer.from([ 0xC7 ]))  ),
    '\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xC7, 0xB1 ]))  ),
    '\u01F1'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xC0, 0xB1 ]))  ),
    '\uFFFD\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xC1, 0xB1 ]))  ),
    '\uFFFD\uFFFD'
  )
  t.end()
})

//FIXME: browser-only case in some reason
isBrowser && t('utf8 replacement chars (3 byte sequences)', function (t) {
  t.equal(
    toString(b2ab(Buffer.from([ 0xE0 ]))  ),
    '\uFFFD'
  )
  t.equal(
    toString(Buffer.from([ 0xE0, 0xAC ])  ),
    // new Buffer([ 0xE0, 0xAC ]).toString(),
    '\uFFFD\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xE0, 0xAC, 0xB9 ]))  ),
    '\u0B39'
  )
  t.end()
})

isBrowser && t('utf8 replacement chars (4 byte sequences)', function (t) {
  t.equal(
    toString(b2ab(Buffer.from([ 0xF4 ]))  ),
    '\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xF4, 0x8F ]))  ),
    '\uFFFD\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xF4, 0x8F, 0x80 ]))  ),
    '\uFFFD\uFFFD\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xF4, 0x8F, 0x80, 0x84 ]))  ),
    '\uDBFC\uDC04'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xFF ]))  ),
    '\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xFF, 0x8F, 0x80, 0x84 ]))  ),
    '\uFFFD\uFFFD\uFFFD\uFFFD'
  )
  t.end()
})

t.skip('bad utf part', t => {
    t.equal(
        toString(new Uint8Array([236, 134, 219])),
        '���'
    )

    t.end()
})

t.skip('utf8 replacement chars on 256 random bytes', function (t) {
  t.equal(
    toString(b2ab(Buffer.from([ 152, 130, 206, 23, 243, 238, 197, 44, 27, 86, 208, 36, 163, 184, 164, 21, 94, 242, 178, 46, 25, 26, 253, 178, 72, 147, 207, 112, 236, 68, 179, 190, 29, 83, 239, 147, 125, 55, 143, 19, 157, 68, 157, 58, 212, 224, 150, 39, 128, 24, 94, 225, 120, 121, 75, 192, 112, 19, 184, 142, 203, 36, 43, 85, 26, 147, 227, 139, 242, 186, 57, 78, 11, 102, 136, 117, 180, 210, 241, 92, 3, 215, 54, 167, 249, 1, 44, 225, 146, 86, 2, 42, 68, 21, 47, 238, 204, 153, 216, 252, 183, 66, 222, 255, 15, 202, 16, 51, 134, 1, 17, 19, 209, 76, 238, 38, 76, 19, 7, 103, 249, 5, 107, 137, 64, 62, 170, 57, 16, 85, 179, 193, 97, 86, 166, 196, 36, 148, 138, 193, 210, 69, 187, 38, 242, 97, 195, 219, 252, 244, 38, 1, 197, 18, 31, 246, 53, 47, 134, 52, 105, 72, 43, 239, 128, 203, 73, 93, 199, 75, 222, 220, 166, 34, 63, 236, 11, 212, 76, 243, 171, 110, 78, 39, 205, 204, 6, 177, 233, 212, 243, 0, 33, 41, 122, 118, 92, 252, 0, 157, 108, 120, 70, 137, 100, 223, 243, 171, 232, 66, 126, 111, 142, 33, 3, 39, 117, 27, 107, 54, 1, 217, 227, 132, 13, 166, 3, 73, 53, 127, 225, 236, 134, 219, 98, 214, 125, 148, 24, 64, 142, 111, 231, 194, 42, 150, 185, 10, 182, 163, 244, 19, 4, 59, 135, 16 ]))  ),
    '\uFFFD\uFFFD\uFFFD\u0017\uFFFD\uFFFD\uFFFD\u002C\u001B\u0056\uFFFD\u0024\uFFFD\uFFFD\uFFFD\u0015\u005E\uFFFD\uFFFD\u002E\u0019\u001A\uFFFD\uFFFD\u0048\uFFFD\uFFFD\u0070\uFFFD\u0044\uFFFD\uFFFD\u001D\u0053\uFFFD\uFFFD\u007D\u0037\uFFFD\u0013\uFFFD\u0044\uFFFD\u003A\uFFFD\uFFFD\uFFFD\u0027\uFFFD\u0018\u005E\uFFFD\u0078\u0079\u004B\uFFFD\u0070\u0013\uFFFD\uFFFD\uFFFD\u0024\u002B\u0055\u001A\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\u0039\u004E\u000B\u0066\uFFFD\u0075\uFFFD\uFFFD\uFFFD\u005C\u0003\uFFFD\u0036\uFFFD\uFFFD\u0001\u002C\uFFFD\uFFFD\u0056\u0002\u002A\u0044\u0015\u002F\uFFFD\u0319\uFFFD\uFFFD\uFFFD\u0042\uFFFD\uFFFD\u000F\uFFFD\u0010\u0033\uFFFD\u0001\u0011\u0013\uFFFD\u004C\uFFFD\u0026\u004C\u0013\u0007\u0067\uFFFD\u0005\u006B\uFFFD\u0040\u003E\uFFFD\u0039\u0010\u0055\uFFFD\uFFFD\u0061\u0056\uFFFD\uFFFD\u0024\uFFFD\uFFFD\uFFFD\uFFFD\u0045\uFFFD\u0026\uFFFD\u0061\uFFFD\uFFFD\uFFFD\uFFFD\u0026\u0001\uFFFD\u0012\u001F\uFFFD\u0035\u002F\uFFFD\u0034\u0069\u0048\u002B\uFFFD\uFFFD\uFFFD\u0049\u005D\uFFFD\u004B\uFFFD\u0726\u0022\u003F\uFFFD\u000B\uFFFD\u004C\uFFFD\uFFFD\u006E\u004E\u0027\uFFFD\uFFFD\u0006\uFFFD\uFFFD\uFFFD\uFFFD\u0000\u0021\u0029\u007A\u0076\u005C\uFFFD\u0000\uFFFD\u006C\u0078\u0046\uFFFD\u0064\uFFFD\uFFFD\uFFFD\uFFFD\u0042\u007E\u006F\uFFFD\u0021\u0003\u0027\u0075\u001B\u006B\u0036\u0001\uFFFD\uFFFD\uFFFD\u000D\uFFFD\u0003\u0049\u0035\u007F\uFFFD\uFFFD\uFFFD\uFFFD\u0062\uFFFD\u007D\uFFFD\u0018\u0040\uFFFD\u006F\uFFFD\uFFFD\u002A\uFFFD\uFFFD\u000A\uFFFD\uFFFD\uFFFD\u0013\u0004\u003B\uFFFD\u0010'
  )
  t.end()
})

isBrowser && t('utf8 replacement chars for anything in the surrogate pair range', function (t) {
  t.equal(
    toString(b2ab(Buffer.from([ 0xED, 0x9F, 0xBF ]))  ),
    '\uD7FF'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xED, 0xA0, 0x80 ]))  ),
    '\uFFFD\uFFFD\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xED, 0xBE, 0x8B ]))  ),
    '\uFFFD\uFFFD\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xED, 0xBF, 0xBF ]))  ),
    '\uFFFD\uFFFD\uFFFD'
  )
  t.equal(
    toString(b2ab(Buffer.from([ 0xEE, 0x80, 0x80 ]))  ),
    '\uE000'
  )
  t.end()
})

t('utf8 don\'t replace the replacement char', function (t) {
  t.equal(
    toString(b2ab(Buffer.from('\uFFFD'))  ),
    '\uFFFD'
  )
  t.end()
})