function DatabaseSelectPagerDefaultTestCase::testElementNumbers

Confirm that every pager gets a valid non-overlapping element ID.

File

core/modules/simpletest/tests/database_test.test, line 2413

Database tests.

Class

DatabaseSelectPagerDefaultTestCase

Code

function testElementNumbers() {
  $_GET['page'] = '3, 2, 1, 0';

  $query = db_select('test', 't')->extend('PagerDefault');
  $query->element(2)
    ->fields('t', array('name'))
    ->orderBy('age')
    ->limit(1);
  $this->assertEqual(2, $query->getElement());
  $name = $query->execute()->fetchField();
  $this->assertEqual($name, 'Paul', 'Pager query #1 with a specified element ID returned the correct results.');

  // Setting an element smaller than the previous one
  // should not overwrite the pager $maxElement with a smaller value.
  $query = db_select('test', 't')->extend('PagerDefault');
  $query->element(1)
    ->fields('t', array('name'))
    ->orderBy('age')
    ->limit(1);
  $this->assertEqual(1, $query->getElement());
  $name = $query->execute()->fetchField();
  $this->assertEqual($name, 'George', 'Pager query #2 with a specified element ID returned the correct results.');

  $query = db_select('test', 't')->extend('PagerDefault');
  $query->fields('t', array('name'))
    ->orderBy('age')
    ->limit(1);
  $this->assertEqual(3, $query->getElement());
  $name = $query->execute()->fetchField();
  $this->assertEqual($name, 'John', 'Pager query #3 with a generated element ID returned the correct results.');

  unset($_GET['page']);
}