Test update with only expression values.

File

drupal-7.x/modules/simpletest/tests/database_test.test, line 1003

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');
}