node/test/parallel/test-common-debuglog.js at 93aa055ea4259f302ed6a6bf9a3e12650dc0fca4 · SirR4T/node · GitHub

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'use strict';

require('../common');
const assert = require('assert');
const fixtures = require('../common/fixtures');
const { spawnSync } = require('child_process');

const message = 'message';

{
  process.env.NODE_DEBUG = 'test';
  const { stderr } = spawnSync(process.execPath, [
    fixtures.path('common-debuglog.js'),
    message
  ], { encoding: 'utf8' });

  assert.ok(stderr.toString().startsWith('TEST'));
  assert.ok(stderr.toString().trim().endsWith(message));
}

{
  delete process.env.NODE_DEBUG;
  const { stderr } = spawnSync(process.execPath, [
    fixtures.path('common-debuglog.js'),
    message
  ], { encoding: 'utf8' });

  assert.strictEqual(stderr.toString().trim(), '');
}

{
  process.env.NODE_DEBUG = 'fs';
  const { stderr } = spawnSync(process.execPath, [
    fixtures.path('common-debuglog.js'),
    message
  ], { encoding: 'utf8' });

  assert.strictEqual(stderr.toString().trim(), '');
}