materio-base-d7/modules/search/tests/search_node_tags.module

<?php

/**
 * @file
 * Dummy module implementing a node search hooks for search module testing.
 */


/**
 *  Implements hook_query_alter().
 */
function search_node_tags_query_alter(QueryAlterableInterface $query) {
  if ($query->hasTag('search_node')) {
    variable_set('search_node_tags_test_query_tag', TRUE);
  }
}

/**
 *  Implements hook_query_TAG_alter().
 */
function search_node_tags_query_search_node_alter(QueryAlterableInterface $query) {
  variable_set('search_node_tags_test_query_tag_hook', TRUE);
}