8caa1dcee6
There are several cleanups here that are not just style nits... 1. The `common.isMainThread` was just a passthrough to the `isMainThread` export on the worker_thread module. It's use was inconsistent and just obfuscated the fact that the test file depend on the `worker_threads` built-in. By eliminating it we simplify the test harness a bit and make it clearer which tests depend on the worker_threads check. 2. The `common.isDumbTerminal` is fairly unnecesary since that just wraps a public API check. 3. Several of the `common.skipIf....` checks were inconsistently used and really don't need to be separate utility functions. A key part of the motivation here is to work towards making more of the tests more self-contained and less reliant on the common test harness where possible. PR-URL: https://github.com/nodejs/node/pull/56712 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
46 lines
1.2 KiB
JavaScript
46 lines
1.2 KiB
JavaScript
'use strict';
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const common = require('../common');
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const { isMainThread } = require('worker_threads');
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if (!isMainThread) {
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common.skip("Workers don't have process-like stdio");
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}
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// Test if Node handles redirecting one child process stdout to another
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// process stdin without crashing.
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const spawn = require('child_process').spawn;
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const writeSize = 100;
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const totalDots = 10000;
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const who = process.argv.length <= 2 ? 'parent' : process.argv[2];
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switch (who) {
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case 'parent': {
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const consumer = spawn(process.argv0, [process.argv[1], 'consumer'], {
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stdio: ['pipe', 'ignore', 'inherit'],
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});
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const producer = spawn(process.argv0, [process.argv[1], 'producer'], {
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stdio: ['pipe', consumer.stdin, 'inherit'],
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});
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process.stdin.on('data', () => {});
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producer.on('exit', process.exit);
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break;
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}
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case 'producer': {
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const buffer = Buffer.alloc(writeSize, '.');
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let written = 0;
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const write = () => {
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if (written < totalDots) {
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written += writeSize;
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process.stdout.write(buffer, write);
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}
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};
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write();
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break;
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}
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case 'consumer':
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process.stdin.on('data', () => {});
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break;
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}
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