Tasks::$tasks

protected $tasks = array(
  array(
    'function' => 'checkEngineVersion',
    'arguments' => array(),
  ),
  array(
    'arguments' => array(
      'CREATE TABLE {drupal_install_test} (id int NULL)',
      'Drupal can use CREATE TABLE database commands.',
      'Failed to <strong>CREATE</strong> a test table on your database server with the command %query. The server reports the following message: %error.<p>Are you sure the configured username has the necessary permissions to create tables in the database?</p>',
      TRUE,
    ),
  ),
  array(
    'arguments' => array(
      'INSERT INTO {drupal_install_test} (id) VALUES (1)',
      'Drupal can use INSERT database commands.',
      'Failed to <strong>INSERT</strong> a value into a test table on your database server. We tried inserting a value with the command %query and the server reported the following error: %error.',
    ),
  ),
  array(
    'arguments' => array(
      'UPDATE {drupal_install_test} SET id = 2',
      'Drupal can use UPDATE database commands.',
      'Failed to <strong>UPDATE</strong> a value in a test table on your database server. We tried updating a value with the command %query and the server reported the following error: %error.',
    ),
  ),
  array(
    'arguments' => array(
      'DELETE FROM {drupal_install_test}',
      'Drupal can use DELETE database commands.',
      'Failed to <strong>DELETE</strong> a value from a test table on your database server. We tried deleting a value with the command %query and the server reported the following error: %error.',
    ),
  ),
  array(
    'arguments' => array(
      'DROP TABLE {drupal_install_test}',
      'Drupal can use DROP TABLE database commands.',
      'Failed to <strong>DROP</strong> a test table from your database server. We tried dropping a table with the command %query and the server reported the following error %error.',
    ),
  ),
);