Miscellany

  // Create testing db.
  $db_name = 'simpletest_'. $this->randomName();
  // TODO: Try this, if it doesn't work, do table prefixing instead?
  db_query("CREATE DATABASE $db_name");
  db_set_active($db_name);

  // Install the given profile's modules.
  include_once './includes/install.inc';
  drupal_install_system();
  $module_list = drupal_verify_profile($profile, 'en');
  drupal_install_modules($module_list);

  // Do additional setup stuff; creating content types, etc.

  // Run SimpleTest.

  // Go back to Drupal.
  db_set_active($db_name);