nodejs/deps/node-inspect/test/cli/profile.test.js

'use strict';
const { test } = require('tap');

const startCLI = require('./start-cli');

function delay(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

test('profiles', (t) => {
  const cli = startCLI(['examples/empty.js']);

  function onFatal(error) {
    cli.quit();
    throw error;
  }

  return cli.waitForInitialBreak()
    .then(() => cli.waitForPrompt())
    .then(() => cli.command('exec console.profile()'))
    .then(() => {
      t.match(cli.output, 'undefined');
    })
    .then(() => cli.command('exec console.profileEnd()'))
    .then(() => delay(250))
    .then(() => {
      t.match(cli.output, 'undefined');
      t.match(cli.output, 'Captured new CPU profile.');
    })
    .then(() => cli.quit())
    .then(null, onFatal);
});