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// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// Flags: --expose-internals'use strict';require('../common');const assert = require('assert');const BufferList = require('internal/streams/buffer_list');
// Test empty buffer list.const emptyList = new BufferList();
emptyList.shift();assert.deepStrictEqual(emptyList, new BufferList());
assert.strictEqual(emptyList.join(','), '');
assert.deepStrictEqual(emptyList.concat(0), Buffer.alloc(0));
const buf = Buffer.from('foo');
function testIterator(list, count) {  // test iterator  let len = 0;  // eslint-disable-next-line no-unused-vars  for (const x of list) {    len++;  }  assert.strictEqual(len, count);}
// Test buffer list with one element.const list = new BufferList();testIterator(list, 0);
list.push(buf);testIterator(list, 1);for (const x of list) {  assert.strictEqual(x, buf);}
const copy = list.concat(3);testIterator(copy, 3);
assert.notStrictEqual(copy, buf);assert.deepStrictEqual(copy, buf);
assert.strictEqual(list.join(','), 'foo');
const shifted = list.shift();testIterator(list, 0);assert.strictEqual(shifted, buf);assert.deepStrictEqual(list, new BufferList());
{  const list = new BufferList();  list.push('foo');  list.push('bar');  list.push('foo');  list.push('bar');  assert.strictEqual(list.consume(6, true), 'foobar');  assert.strictEqual(list.consume(6, true), 'foobar');}
{  const list = new BufferList();  list.push('foo');  list.push('bar');  assert.strictEqual(list.consume(5, true), 'fooba');}
{  const list = new BufferList();  list.push(buf);  list.push(buf);  list.push(buf);  list.push(buf);  assert.strictEqual(list.consume(6).toString(), 'foofoo');  assert.strictEqual(list.consume(6).toString(), 'foofoo');}
{  const list = new BufferList();  list.push(buf);  list.push(buf);  assert.strictEqual(list.consume(5).toString(), 'foofo');}