node/test/parallel/test-trace-events-file-pattern.js
Rich Trott 41ae423718 test: remove common.fileExists()
common.fileExists() can be replaced with fs.existsSync().

PR-URL: https://github.com/nodejs/node/pull/22151
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Weijia Wang <starkwang@126.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
2018-08-08 09:17:44 -07:00

34 lines
976 B
JavaScript

'use strict';
const common = require('../common');
const tmpdir = require('../common/tmpdir');
const assert = require('assert');
const cp = require('child_process');
const fs = require('fs');
if (!common.isMainThread)
common.skip('process.chdir is not available in Workers');
tmpdir.refresh();
process.chdir(tmpdir.path);
const CODE =
'setTimeout(() => { for (var i = 0; i < 100000; i++) { "test" + i } }, 1)';
const proc = cp.spawn(process.execPath, [
'--trace-events-enabled',
'--trace-event-file-pattern',
// eslint-disable-next-line no-template-curly-in-string
'${pid}-${rotation}-${pid}-${rotation}.tracing.log',
'-e', CODE
]);
proc.once('exit', common.mustCall(() => {
const expectedFilename = `${proc.pid}-1-${proc.pid}-1.tracing.log`;
assert(fs.existsSync(expectedFilename));
fs.readFile(expectedFilename, common.mustCall((err, data) => {
const traces = JSON.parse(data.toString()).traceEvents;
assert(traces.length > 0);
}));
}));