node/test/parallel/test-trace-event.js
Rich Trott aa6fac68da test: adjust indentation for stricter linting
ESLint 4.x has stricter linting than previous versions. We are currently
using the legacy indentation rules in the test directory. This commit
changes the indentation of files to comply with the stricter 4.x linting
and enable stricter linting in the test directory.

PR-URL: https://github.com/nodejs/node/pull/14431
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
2017-07-27 09:24:20 -07:00

42 lines
1.2 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const cp = require('child_process');
const fs = require('fs');
const CODE = 'for (var i = 0; i < 100000; i++) { "test" + i }';
const FILE_NAME = 'node_trace.1.log';
common.refreshTmpDir();
process.chdir(common.tmpDir);
const proc_no_categories = cp.spawn(
process.execPath,
[ '--trace-events-enabled', '--trace-event-categories', '""', '-e', CODE ]
);
proc_no_categories.once('exit', common.mustCall(() => {
assert(!common.fileExists(FILE_NAME));
const proc = cp.spawn(process.execPath,
[ '--trace-events-enabled', '-e', CODE ]);
proc.once('exit', common.mustCall(() => {
assert(common.fileExists(FILE_NAME));
fs.readFile(FILE_NAME, common.mustCall((err, data) => {
const traces = JSON.parse(data.toString()).traceEvents;
assert(traces.length > 0);
// Values that should be present on all runs to approximate correctness.
assert(traces.some((trace) => {
if (trace.pid !== proc.pid)
return false;
if (trace.cat !== 'v8')
return false;
if (trace.name !== 'V8.ScriptCompiler')
return false;
return true;
}));
}));
}));
}));