// 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.

'use strict'

const tap = require('tap')
const silentConsole = {
  log() {},
  error() {}
}
require('../common')
const assert = require('assert')

// This test verifies that passing a huge number to read(size)
// will push up the highWaterMark, and cause the stream to read
// more data continuously, but without triggering a nextTick
// warning or RangeError.

const Readable = require('../../lib/ours/index').Readable

// Throw an error if we trigger a nextTick warning.
process.throwDeprecation = true
const stream = new Readable({
  highWaterMark: 2
})
let reads = 0
let total = 5000
stream._read = function (size) {
  reads++
  size = Math.min(size, total)
  total -= size
  if (size === 0) stream.push(null)
  else stream.push(Buffer.allocUnsafe(size))
}
let depth = 0
function flow(stream, size, callback) {
  depth += 1
  const chunk = stream.read(size)
  if (!chunk) stream.once('readable', flow.bind(null, stream, size, callback))
  else callback(chunk)
  depth -= 1
  silentConsole.log(`flow(${depth}): exit`)
}
flow(stream, 5000, function () {
  silentConsole.log(`complete (${depth})`)
})
process.on('exit', function (code) {
  assert.strictEqual(reads, 2)
  // We pushed up the high water mark
  assert.strictEqual(stream.readableHighWaterMark, 8192)
  // Length is 0 right now, because we pulled it all out.
  assert.strictEqual(stream.readableLength, 0)
  assert(!code)
  assert.strictEqual(depth, 0)
  silentConsole.log('ok')
})

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