function DatabaseUpdateComplexTestCase::testUpdateOnlyExpression in Drupal 7

Test update with only expression values.

File

modules/simpletest/tests/database_test.test, line 1009

Class

DatabaseUpdateComplexTestCase

Tests for more complex update statements.

Code

function testUpdateOnlyExpression() {
  $before_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
    ':name' => 'Ringo',
  ))
    ->fetchField();
  $num_updated = db_update('test')
    ->condition('name', 'Ringo')
    ->expression('age', 'age + :age', array(
    ':age' => 4,
  ))
    ->execute();
  $this
    ->assertIdentical($num_updated, 1, 'Updated 1 record.');
  $after_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
    ':name' => 'Ringo',
  ))
    ->fetchField();
  $this
    ->assertEqual($before_age + 4, $after_age, 'Age updated correctly');
}