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73 lines
2.3 KiB
JavaScript
73 lines
2.3 KiB
JavaScript
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// 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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'use strict';
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const common = require('../common');
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const Countdown = require('../common/countdown');
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const assert = require('assert');
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const { AsyncLocalStorage } = require('async_hooks');
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const http = require('http');
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const cls = new AsyncLocalStorage();
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const NUM_CLIENTS = 10;
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// Run multiple clients that receive data from a server
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// in multiple chunks, in a single non-closure function.
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// Use the AsyncLocalStorage (ALS) APIs to maintain the context
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// and data download. Make sure that individual clients
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// receive their respective data, with no conflicts.
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// Set up a server that sends large buffers of data, filled
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// with cardinal numbers, increasing per request
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let index = 0;
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const server = http.createServer((q, r) => {
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// Send a large chunk as response, otherwise the data
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// may be sent in a single chunk, and the callback in the
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// client may be called only once, defeating the purpose of test
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r.end((index++ % 10).toString().repeat(1024 * 1024));
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});
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const countdown = new Countdown(NUM_CLIENTS, () => {
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server.close();
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});
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server.listen(0, common.mustCall(() => {
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for (let i = 0; i < NUM_CLIENTS; i++) {
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cls.run(new Map(), common.mustCall(() => {
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const options = { port: server.address().port };
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const req = http.get(options, common.mustCall((res) => {
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const store = cls.getStore();
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store.set('data', '');
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// Make ondata and onend non-closure
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// functions and fully dependent on ALS
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res.setEncoding('utf8');
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res.on('data', ondata);
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res.on('end', common.mustCall(onend));
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}));
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req.end();
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}));
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}
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}));
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// Accumulate the current data chunk with the store data
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function ondata(d) {
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const store = cls.getStore();
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assert.notStrictEqual(store, undefined);
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let chunk = store.get('data');
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chunk += d;
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store.set('data', chunk);
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}
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// Retrieve the store data, and test for homogeneity
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function onend() {
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const store = cls.getStore();
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assert.notStrictEqual(store, undefined);
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const data = store.get('data');
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assert.strictEqual(data, data[0].repeat(data.length));
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countdown.dec();
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}
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