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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-trace-events-worker-metadata.js |
'use strict';
const common = require('../common');
const assert = require('assert');
const cp = require('child_process');
const fs = require('fs');
const { isMainThread } = require('worker_threads');
if (isMainThread) {
const CODE = 'const { Worker } = require(\'worker_threads\'); ' +
`new Worker('${__filename.replace(/\\/g, '/')}')`;
const FILE_NAME = 'node_trace.1.log';
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
process.chdir(tmpdir.path);
const proc = cp.spawn(process.execPath,
[ '--trace-event-categories', 'node',
'-e', CODE ]);
proc.once('exit', common.mustCall(() => {
assert(fs.existsSync(FILE_NAME));
fs.readFile(FILE_NAME, common.mustCall((err, data) => {
const traces = JSON.parse(data.toString()).traceEvents;
assert(traces.length > 0);
assert(traces.some((trace) =>
trace.cat === '__metadata' && trace.name === 'thread_name' &&
trace.args.name === 'WorkerThread 1'));
}));
}));
} else {
// Do nothing here.
}
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