function DatabaseSelectTestCase::testSimpleSelectExpression

7.x database_test.test DatabaseSelectTestCase::testSimpleSelectExpression()

Test SELECT statements with expressions.

File

drupal/modules/simpletest/tests/database_test.test, line 1424

Class

DatabaseSelectTestCase
Test the SELECT builder.

Code

function testSimpleSelectExpression() {
  $query = db_select('test');
  $name_field = $query->addField('test', 'name');
  $age_field = $query->addExpression("age*2", 'double_age');
  $query->condition('age', 27);
  $result = $query->execute();

  // Check that the aliases are being created the way we want.
  $this->assertEqual($name_field, 'name', 'Name field alias is correct.');
  $this->assertEqual($age_field, 'double_age', 'Age field alias is correct.');

  // Ensure that we got the right record.
  $record = $result->fetch();
  $this->assertEqual($record->$name_field, 'George', 'Fetched name is correct.');
  $this->assertEqual($record->$age_field, 27 * 2, 'Fetched age expression is correct.');
}