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Current File : /home/vacivi36/vittasync.vacivitta.com.br/vittasync/node/test/parallel/test-trace-events-all.js

'use strict';
const common = require('../common');
const assert = require('assert');
const cp = require('child_process');
const fs = require('fs');

const CODE =
  'setTimeout(() => { for (let i = 0; i < 100000; i++) { "test" + i } }, 1)';

const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
const FILE_NAME = tmpdir.resolve('node_trace.1.log');

const proc = cp.spawn(process.execPath,
                      [ '--trace-events-enabled', '-e', CODE ],
                      { cwd: tmpdir.path });

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);
    // 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.startsWith('V8.'))
        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,node.async_hooks')
        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,node.async_hooks')
        return false;
      if (trace.name !== 'Timeout')
        return false;
      return true;
    }));
  }));
}));

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