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denoland-deno/tests/node_compat/test/parallel/test-stream-buffer-list.js
Asher Gomez 29085895c9
chore: move tools/node_compat to tests/node_compat/runner (#23025)
The `tools/node_compat/node` submodule has been moved to
`tests/node_compat/runner/suite` and the remaining files within
`tools/node_compat` to `tests/node_compat/runner`.

Most of the changes are of the header within `tests/node_compat/test`
files. The `setup` and `test` tasks within `tests/node_comapt` execute
successfully.

Towards #22525
CC @mmastrac
2024-04-03 09:24:55 +11:00

91 lines
2.1 KiB
JavaScript

// deno-fmt-ignore-file
// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 18.12.1
// This file is automatically generated by `tests/node_compat/runner/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');
}