Verify that search works with a numeric locale set.
public function testSearchWithNumericLocale() {
// French decimal point is comma.
setlocale(LC_NUMERIC, 'fr_FR');
// An exception will be thrown if a float in the wrong format occurs in the
// query to the database, so an assertion is not necessary here.
db_select('search_index', 'i')
->extend('searchquery')
->searchexpression('tapir', 'node')
->execute();
}