mirror of
https://github.com/denoland/deno.git
synced 2024-12-25 00:29:09 -05:00
140 lines
3.8 KiB
JavaScript
140 lines
3.8 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 `tools/node_compat/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');
|
|
const Duplex = require('stream').Duplex;
|
|
const { ReadableStream, WritableStream } = require('stream/web');
|
|
|
|
const stream = new Duplex({ objectMode: true });
|
|
|
|
assert(Duplex() instanceof Duplex);
|
|
assert(stream._readableState.objectMode);
|
|
assert(stream._writableState.objectMode);
|
|
assert(stream.allowHalfOpen);
|
|
assert.strictEqual(stream.listenerCount('end'), 0);
|
|
|
|
let written;
|
|
let read;
|
|
|
|
stream._write = (obj, _, cb) => {
|
|
written = obj;
|
|
cb();
|
|
};
|
|
|
|
stream._read = () => {};
|
|
|
|
stream.on('data', (obj) => {
|
|
read = obj;
|
|
});
|
|
|
|
stream.push({ val: 1 });
|
|
stream.end({ val: 2 });
|
|
|
|
process.on('exit', () => {
|
|
assert.strictEqual(read.val, 1);
|
|
assert.strictEqual(written.val, 2);
|
|
});
|
|
|
|
// Duplex.fromWeb
|
|
{
|
|
const dataToRead = Buffer.from('hello');
|
|
const dataToWrite = Buffer.from('world');
|
|
|
|
const readable = new ReadableStream({
|
|
start(controller) {
|
|
controller.enqueue(dataToRead);
|
|
},
|
|
});
|
|
|
|
const writable = new WritableStream({
|
|
write: common.mustCall((chunk) => {
|
|
assert.strictEqual(chunk, dataToWrite);
|
|
})
|
|
});
|
|
|
|
const pair = { readable, writable };
|
|
const duplex = Duplex.fromWeb(pair);
|
|
|
|
duplex.write(dataToWrite);
|
|
duplex.once('data', common.mustCall((chunk) => {
|
|
assert.strictEqual(chunk, dataToRead);
|
|
}));
|
|
}
|
|
|
|
// Duplex.fromWeb - using utf8 and objectMode
|
|
{
|
|
const dataToRead = 'hello';
|
|
const dataToWrite = 'world';
|
|
|
|
const readable = new ReadableStream({
|
|
start(controller) {
|
|
controller.enqueue(dataToRead);
|
|
},
|
|
});
|
|
|
|
const writable = new WritableStream({
|
|
write: common.mustCall((chunk) => {
|
|
assert.strictEqual(chunk, dataToWrite);
|
|
})
|
|
});
|
|
|
|
const pair = {
|
|
readable,
|
|
writable
|
|
};
|
|
const duplex = Duplex.fromWeb(pair, { encoding: 'utf8', objectMode: true });
|
|
|
|
duplex.write(dataToWrite);
|
|
duplex.once('data', common.mustCall((chunk) => {
|
|
assert.strictEqual(chunk, dataToRead);
|
|
}));
|
|
}
|
|
// Duplex.toWeb
|
|
{
|
|
const dataToRead = Buffer.from('hello');
|
|
const dataToWrite = Buffer.from('world');
|
|
|
|
const duplex = Duplex({
|
|
read() {
|
|
this.push(dataToRead);
|
|
this.push(null);
|
|
},
|
|
write: common.mustCall((chunk) => {
|
|
assert.strictEqual(chunk, dataToWrite);
|
|
})
|
|
});
|
|
|
|
const { writable, readable } = Duplex.toWeb(duplex);
|
|
writable.getWriter().write(dataToWrite);
|
|
|
|
readable.getReader().read().then(common.mustCall((result) => {
|
|
assert.deepStrictEqual(Buffer.from(result.value), dataToRead);
|
|
}));
|
|
}
|