Use drupal internal global variables instead of ini_get for cookies defualt

When running tests, make sure there is no configuration but the mysql connection and the hash salt in your settings.php.

All cookie related ini settings are initialized during a normal bootstrap from within drupal_settings_initialize() and drupal_environment_initialize().

Especially note the following snipped from drupal_settings_initialize():

  // Per RFC 2109, cookie domains must contain at least one dot other than the
  // first. For hosts such as 'localhost' or IP Addresses we don't set a cookie domain.
  if (count(explode('.', $cookie_domain)) > 2 && !is_numeric(str_replace('.', '', $cookie_domain))) {
    ini_set('session.cookie_domain', $cookie_domain);
  }

So the respective ini-setting is changed, but only only if $cookie_domain is valid. For that reason I think that using ini_get('session.cookie_domain') is safer than using the value directly.

What exactly is the problem you observed? How did you configure your site?

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