function DatabaseSelectTestCase::testUnionAll

Test that we can UNION ALL multiple Select queries together.

File

modules/simpletest/tests/database_test.test, line 1700

Class

DatabaseSelectTestCase

Test the SELECT builder.

Code

function testUnionAll() {
  $query_1 = db_select('test', 't')
    ->fields('t', array(
    'name',
  ))
    ->condition('age', array(
    27,
    28,
  ), 'IN');
  $query_2 = db_select('test', 't')
    ->fields('t', array(
    'name',
  ))
    ->condition('age', 28);
  $query_1
    ->union($query_2, 'ALL');
  $names = $query_1
    ->execute()
    ->fetchCol();

  // Ensure we get all 3 records.
  $this
    ->assertEqual(count($names), 3, 'UNION ALL correctly preserved duplicates.');
  $this
    ->assertEqual($names[0], 'George', 'First query returned correct first name.');
  $this
    ->assertEqual($names[1], 'Ringo', 'Second query returned correct second name.');
  $this
    ->assertEqual($names[2], 'Ringo', 'Third query returned correct name.');
}