7 invocations of hook_update_index() in Drupal 7

SearchExactTestCase::testExactQuery in modules/search/search.test

Tests that the correct number of pager links are found for both keywords and phrases.

SearchNodeAccessTest::testPhraseSearchPunctuation in modules/search/search.test

Tests that search works with punctuation and HTML entities.

SearchNodeTagTest::testNodeSearchQueryTags in modules/search/search.test

Tests that the correct tags are available and hooks invoked.

SearchRankingTestCase::testDoubleRankings in modules/search/search.test

Verifies that if we combine two rankings, search still works.

SearchRankingTestCase::testHTMLRankings in modules/search/search.test

Test rankings of HTML tags.

SearchRankingTestCase::testRankings in modules/search/search.test

search_cron in modules/search/search.module

Implements hook_cron().