mirror of
https://github.com/denoland/deno.git
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d04d5677d9
This PR updates the node_compat setup script. Now the copied version in each test file is corrected. Also `TODO.md` links to the correct files in Node.js repo.
501 lines
12 KiB
JavaScript
501 lines
12 KiB
JavaScript
// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 20.11.1
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// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { PassThrough, Transform } = require('stream');
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{
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// Verify writable side consumption
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const tx = new Transform({
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highWaterMark: 10
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});
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let transformed = 0;
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tx._transform = function(chunk, encoding, cb) {
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transformed += chunk.length;
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tx.push(chunk);
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cb();
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};
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for (let i = 1; i <= 10; i++) {
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tx.write(Buffer.allocUnsafe(i));
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}
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tx.end();
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assert.strictEqual(tx.readableLength, 10);
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assert.strictEqual(transformed, 10);
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assert.deepStrictEqual(tx.writableBuffer.map(function(c) {
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return c.chunk.length;
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}), [5, 6, 7, 8, 9, 10]);
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}
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{
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// Verify passthrough behavior
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const pt = new PassThrough();
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pt.write(Buffer.from('foog'));
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pt.write(Buffer.from('bark'));
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pt.write(Buffer.from('bazy'));
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pt.write(Buffer.from('kuel'));
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pt.end();
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assert.strictEqual(pt.read(5).toString(), 'foogb');
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assert.strictEqual(pt.read(5).toString(), 'arkba');
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assert.strictEqual(pt.read(5).toString(), 'zykue');
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assert.strictEqual(pt.read(5).toString(), 'l');
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}
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{
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// Verify object passthrough behavior
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const pt = new PassThrough({ objectMode: true });
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pt.write(1);
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pt.write(true);
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pt.write(false);
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pt.write(0);
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pt.write('foo');
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pt.write('');
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pt.write({ a: 'b' });
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pt.end();
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assert.strictEqual(pt.read(), 1);
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assert.strictEqual(pt.read(), true);
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assert.strictEqual(pt.read(), false);
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assert.strictEqual(pt.read(), 0);
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assert.strictEqual(pt.read(), 'foo');
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assert.strictEqual(pt.read(), '');
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assert.deepStrictEqual(pt.read(), { a: 'b' });
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}
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{
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// Verify passthrough constructor behavior
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const pt = PassThrough();
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assert(pt instanceof PassThrough);
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}
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{
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// Verify transform constructor behavior
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const pt = Transform();
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assert(pt instanceof Transform);
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}
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{
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// Perform a simple transform
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const pt = new Transform();
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pt._transform = function(c, e, cb) {
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const ret = Buffer.alloc(c.length, 'x');
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pt.push(ret);
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cb();
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};
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pt.write(Buffer.from('foog'));
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pt.write(Buffer.from('bark'));
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pt.write(Buffer.from('bazy'));
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pt.write(Buffer.from('kuel'));
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pt.end();
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assert.strictEqual(pt.read(5).toString(), 'xxxxx');
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assert.strictEqual(pt.read(5).toString(), 'xxxxx');
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assert.strictEqual(pt.read(5).toString(), 'xxxxx');
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assert.strictEqual(pt.read(5).toString(), 'x');
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}
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{
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// Verify simple object transform
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const pt = new Transform({ objectMode: true });
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pt._transform = function(c, e, cb) {
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pt.push(JSON.stringify(c));
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cb();
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};
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pt.write(1);
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pt.write(true);
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pt.write(false);
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pt.write(0);
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pt.write('foo');
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pt.write('');
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pt.write({ a: 'b' });
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pt.end();
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assert.strictEqual(pt.read(), '1');
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assert.strictEqual(pt.read(), 'true');
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assert.strictEqual(pt.read(), 'false');
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assert.strictEqual(pt.read(), '0');
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assert.strictEqual(pt.read(), '"foo"');
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assert.strictEqual(pt.read(), '""');
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assert.strictEqual(pt.read(), '{"a":"b"}');
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}
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{
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// Verify async passthrough
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const pt = new Transform();
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pt._transform = function(chunk, encoding, cb) {
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setTimeout(function() {
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pt.push(chunk);
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cb();
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}, 10);
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};
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pt.write(Buffer.from('foog'));
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pt.write(Buffer.from('bark'));
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pt.write(Buffer.from('bazy'));
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pt.write(Buffer.from('kuel'));
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pt.end();
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pt.on('finish', common.mustCall(function() {
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assert.strictEqual(pt.read(5).toString(), 'foogb');
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assert.strictEqual(pt.read(5).toString(), 'arkba');
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assert.strictEqual(pt.read(5).toString(), 'zykue');
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assert.strictEqual(pt.read(5).toString(), 'l');
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}));
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}
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{
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// Verify asymmetric transform (expand)
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const pt = new Transform();
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// Emit each chunk 2 times.
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pt._transform = function(chunk, encoding, cb) {
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setTimeout(function() {
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pt.push(chunk);
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setTimeout(function() {
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pt.push(chunk);
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cb();
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}, 10);
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}, 10);
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};
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pt.write(Buffer.from('foog'));
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pt.write(Buffer.from('bark'));
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pt.write(Buffer.from('bazy'));
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pt.write(Buffer.from('kuel'));
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pt.end();
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pt.on('finish', common.mustCall(function() {
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assert.strictEqual(pt.read(5).toString(), 'foogf');
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assert.strictEqual(pt.read(5).toString(), 'oogba');
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assert.strictEqual(pt.read(5).toString(), 'rkbar');
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assert.strictEqual(pt.read(5).toString(), 'kbazy');
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assert.strictEqual(pt.read(5).toString(), 'bazyk');
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assert.strictEqual(pt.read(5).toString(), 'uelku');
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assert.strictEqual(pt.read(5).toString(), 'el');
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}));
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}
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{
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// Verify asymmetric transform (compress)
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const pt = new Transform();
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// Each output is the first char of 3 consecutive chunks,
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// or whatever's left.
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pt.state = '';
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pt._transform = function(chunk, encoding, cb) {
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if (!chunk)
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chunk = '';
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const s = chunk.toString();
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setTimeout(() => {
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this.state += s.charAt(0);
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if (this.state.length === 3) {
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pt.push(Buffer.from(this.state));
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this.state = '';
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}
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cb();
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}, 10);
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};
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pt._flush = function(cb) {
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// Just output whatever we have.
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pt.push(Buffer.from(this.state));
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this.state = '';
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cb();
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};
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pt.write(Buffer.from('aaaa'));
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pt.write(Buffer.from('bbbb'));
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pt.write(Buffer.from('cccc'));
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pt.write(Buffer.from('dddd'));
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pt.write(Buffer.from('eeee'));
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pt.write(Buffer.from('aaaa'));
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pt.write(Buffer.from('bbbb'));
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pt.write(Buffer.from('cccc'));
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pt.write(Buffer.from('dddd'));
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pt.write(Buffer.from('eeee'));
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pt.write(Buffer.from('aaaa'));
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pt.write(Buffer.from('bbbb'));
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pt.write(Buffer.from('cccc'));
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pt.write(Buffer.from('dddd'));
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pt.end();
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// 'abcdeabcdeabcd'
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pt.on('finish', common.mustCall(function() {
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assert.strictEqual(pt.read(5).toString(), 'abcde');
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assert.strictEqual(pt.read(5).toString(), 'abcde');
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assert.strictEqual(pt.read(5).toString(), 'abcd');
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}));
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}
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// This tests for a stall when data is written to a full stream
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// that has empty transforms.
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{
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// Verify complex transform behavior
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let count = 0;
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let saved = null;
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const pt = new Transform({ highWaterMark: 3 });
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pt._transform = function(c, e, cb) {
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if (count++ === 1)
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saved = c;
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else {
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if (saved) {
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pt.push(saved);
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saved = null;
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}
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pt.push(c);
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}
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cb();
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};
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pt.once('readable', function() {
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process.nextTick(function() {
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pt.write(Buffer.from('d'));
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pt.write(Buffer.from('ef'), common.mustCall(function() {
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pt.end();
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}));
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assert.strictEqual(pt.read().toString(), 'abcdef');
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assert.strictEqual(pt.read(), null);
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});
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});
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pt.write(Buffer.from('abc'));
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}
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{
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// Verify passthrough event emission
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const pt = new PassThrough();
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let emits = 0;
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pt.on('readable', function() {
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emits++;
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});
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pt.write(Buffer.from('foog'));
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pt.write(Buffer.from('bark'));
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assert.strictEqual(emits, 0);
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assert.strictEqual(pt.read(5).toString(), 'foogb');
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assert.strictEqual(String(pt.read(5)), 'null');
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assert.strictEqual(emits, 0);
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pt.write(Buffer.from('bazy'));
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pt.write(Buffer.from('kuel'));
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assert.strictEqual(emits, 0);
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assert.strictEqual(pt.read(5).toString(), 'arkba');
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assert.strictEqual(pt.read(5).toString(), 'zykue');
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assert.strictEqual(pt.read(5), null);
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pt.end();
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assert.strictEqual(emits, 1);
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assert.strictEqual(pt.read(5).toString(), 'l');
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assert.strictEqual(pt.read(5), null);
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assert.strictEqual(emits, 1);
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}
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{
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// Verify passthrough event emission reordering
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const pt = new PassThrough();
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let emits = 0;
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pt.on('readable', function() {
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emits++;
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});
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pt.write(Buffer.from('foog'));
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pt.write(Buffer.from('bark'));
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assert.strictEqual(emits, 0);
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assert.strictEqual(pt.read(5).toString(), 'foogb');
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assert.strictEqual(pt.read(5), null);
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pt.once('readable', common.mustCall(function() {
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assert.strictEqual(pt.read(5).toString(), 'arkba');
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assert.strictEqual(pt.read(5), null);
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pt.once('readable', common.mustCall(function() {
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assert.strictEqual(pt.read(5).toString(), 'zykue');
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assert.strictEqual(pt.read(5), null);
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pt.once('readable', common.mustCall(function() {
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assert.strictEqual(pt.read(5).toString(), 'l');
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assert.strictEqual(pt.read(5), null);
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assert.strictEqual(emits, 3);
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}));
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pt.end();
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}));
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pt.write(Buffer.from('kuel'));
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}));
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pt.write(Buffer.from('bazy'));
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}
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{
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// Verify passthrough facade
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const pt = new PassThrough();
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const datas = [];
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pt.on('data', function(chunk) {
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datas.push(chunk.toString());
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});
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pt.on('end', common.mustCall(function() {
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assert.deepStrictEqual(datas, ['foog', 'bark', 'bazy', 'kuel']);
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}));
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pt.write(Buffer.from('foog'));
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setTimeout(function() {
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pt.write(Buffer.from('bark'));
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setTimeout(function() {
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pt.write(Buffer.from('bazy'));
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setTimeout(function() {
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pt.write(Buffer.from('kuel'));
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setTimeout(function() {
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pt.end();
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}, 10);
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}, 10);
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}, 10);
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}, 10);
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}
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{
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// Verify object transform (JSON parse)
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const jp = new Transform({ objectMode: true });
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jp._transform = function(data, encoding, cb) {
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try {
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jp.push(JSON.parse(data));
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cb();
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} catch (er) {
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cb(er);
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}
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};
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// Anything except null/undefined is fine.
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// those are "magic" in the stream API, because they signal EOF.
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const objects = [
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{ foo: 'bar' },
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100,
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'string',
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{ nested: { things: [ { foo: 'bar' }, 100, 'string' ] } },
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];
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let ended = false;
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jp.on('end', function() {
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ended = true;
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});
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objects.forEach(function(obj) {
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jp.write(JSON.stringify(obj));
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const res = jp.read();
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assert.deepStrictEqual(res, obj);
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});
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jp.end();
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// Read one more time to get the 'end' event
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jp.read();
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process.nextTick(common.mustCall(function() {
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assert.strictEqual(ended, true);
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}));
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}
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{
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// Verify object transform (JSON stringify)
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const js = new Transform({ objectMode: true });
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js._transform = function(data, encoding, cb) {
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try {
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js.push(JSON.stringify(data));
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cb();
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} catch (er) {
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cb(er);
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}
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};
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// Anything except null/undefined is fine.
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// those are "magic" in the stream API, because they signal EOF.
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const objects = [
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{ foo: 'bar' },
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100,
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'string',
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{ nested: { things: [ { foo: 'bar' }, 100, 'string' ] } },
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];
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let ended = false;
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js.on('end', function() {
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ended = true;
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});
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objects.forEach(function(obj) {
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js.write(obj);
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const res = js.read();
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assert.strictEqual(res, JSON.stringify(obj));
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});
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js.end();
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// Read one more time to get the 'end' event
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js.read();
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process.nextTick(common.mustCall(function() {
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assert.strictEqual(ended, true);
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}));
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}
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{
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const s = new Transform({
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objectMode: true,
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construct(callback) {
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this.push('header from constructor');
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callback();
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},
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transform: (row, encoding, callback) => {
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callback(null, row);
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},
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});
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const expected = [
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'header from constructor',
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'firstLine',
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'secondLine',
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];
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s.on('data', common.mustCall((data) => {
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assert.strictEqual(data.toString(), expected.shift());
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}, 3));
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s.write('firstLine');
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process.nextTick(() => s.write('secondLine'));
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}
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