// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// Flags: --expose-internals

'use strict'

const tap = require('tap')
const silentConsole = {
  log() {},
  error() {}
}
require('../common')
const assert = require('assert')
const fromList = require('../../lib/ours/index').Readable._fromList
const BufferList = require('../../lib/internal/streams/buffer_list')
const util = require('util')
function bufferListFromArray(arr) {
  const bl = new BufferList()
  for (let i = 0; i < arr.length; ++i) bl.push(arr[i])
  return bl
}
{
  // Verify behavior with buffers
  let list = [Buffer.from('foog'), Buffer.from('bark'), Buffer.from('bazy'), Buffer.from('kuel')]
  list = bufferListFromArray(list)
  assert.strictEqual(typeof list.head, 'object')
  assert.strictEqual(typeof list.tail, 'object')
  assert.strictEqual(list.length, 4)

  // Read more than the first element.
  let ret = fromList(6, {
    buffer: list,
    length: 16
  })
  assert.strictEqual(ret.toString(), 'foogba')

  // Read exactly the first element.
  ret = fromList(2, {
    buffer: list,
    length: 10
  })
  assert.strictEqual(ret.toString(), 'rk')

  // Read less than the first element.
  ret = fromList(2, {
    buffer: list,
    length: 8
  })
  assert.strictEqual(ret.toString(), 'ba')

  // Read more than we have.
  ret = fromList(100, {
    buffer: list,
    length: 6
  })
  assert.strictEqual(ret.toString(), 'zykuel')

  // all consumed.
  assert.deepStrictEqual(list, new BufferList())
}
{
  // Verify behavior with strings
  let list = ['foog', 'bark', 'bazy', 'kuel']
  list = bufferListFromArray(list)

  // Read more than the first element.
  let ret = fromList(6, {
    buffer: list,
    length: 16,
    decoder: true
  })
  assert.strictEqual(ret, 'foogba')

  // Read exactly the first element.
  ret = fromList(2, {
    buffer: list,
    length: 10,
    decoder: true
  })
  assert.strictEqual(ret, 'rk')

  // Read less than the first element.
  ret = fromList(2, {
    buffer: list,
    length: 8,
    decoder: true
  })
  assert.strictEqual(ret, 'ba')

  // Read more than we have.
  ret = fromList(100, {
    buffer: list,
    length: 6,
    decoder: true
  })
  assert.strictEqual(ret, 'zykuel')

  // all consumed.
  assert.deepStrictEqual(list, new BufferList())
}

/* replacement start */
process.on('beforeExit', (code) => {
  if (code === 0) {
    tap.pass('test succeeded')
  } else {
    tap.fail(`test failed - exited code ${code}`)
  }
})
/* replacement end */
