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nodejs/test/parallel/test-trace-events-v8.js
Rich Trott bf6ce47259 test: move tmpdir to submodule of common
Move tmpdir functionality to its own module (common/tmpdir).

PR-URL: https://github.com/nodejs/node/pull/17856
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
2018-01-31 22:11:07 -08:00

60 lines
1.7 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const cp = require('child_process');
const fs = require('fs');
const CODE =
'setTimeout(() => { for (var i = 0; i < 100000; i++) { "test" + i } }, 1)';
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-events-enabled',
'--trace-event-categories', 'v8',
'-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);
// V8 trace events should be generated.
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;
}));
// C++ async_hooks trace events should be generated.
assert(!traces.some((trace) => {
if (trace.pid !== proc.pid)
return false;
if (trace.cat !== 'node.async_hooks')
return false;
if (trace.name !== 'TIMERWRAP')
return false;
return true;
}));
// JavaScript async_hooks trace events should be generated.
assert(!traces.some((trace) => {
if (trace.pid !== proc.pid)
return false;
if (trace.cat !== 'node.async_hooks')
return false;
if (trace.name !== 'Timeout')
return false;
return true;
}));
}));
}));