12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182
// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 16.13.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// 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 common = require('../common');const assert = require('assert');
// If everything aligns so that you do a read(n) of exactly the// remaining buffer, then make sure that 'end' still emits.
const READSIZE = 100;const PUSHSIZE = 20;const PUSHCOUNT = 1000;const HWM = 50;
const Readable = require('stream').Readable;const r = new Readable({  highWaterMark: HWM});const rs = r._readableState;
r._read = push;
r.on('readable', function() {  console.error('>> readable');  let ret;  do {    console.error(`  > read(${READSIZE})`);    ret = r.read(READSIZE);    console.error(`  < ${ret && ret.length} (${rs.length} remain)`);  } while (ret && ret.length === READSIZE);
  console.error('<< after read()',                ret && ret.length,                rs.needReadable,                rs.length);});
r.on('end', common.mustCall(function() {  assert.strictEqual(pushes, PUSHCOUNT + 1);}));
let pushes = 0;function push() {  if (pushes > PUSHCOUNT)    return;
  if (pushes++ === PUSHCOUNT) {    console.error('   push(EOF)');    return r.push(null);  }
  console.error(`   push #${pushes}`);  if (r.push(Buffer.allocUnsafe(PUSHSIZE)))    setTimeout(push, 1);}