public function SelectTest::testUnionAll in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/KernelTests/Core/Database/SelectTest.php \Drupal\KernelTests\Core\Database\SelectTest::testUnionAll()

Tests that we can UNION ALL multiple SELECT queries together.

File

core/tests/Drupal/KernelTests/Core/Database/SelectTest.php, line 330

Class

SelectTest

Tests the Select query builder.

Namespace

Drupal\KernelTests\Core\Database

Code

public function testUnionAll() {
  $query_1 = $this->connection
    ->select('test', 't')
    ->fields('t', [
    'name',
  ])
    ->condition('age', [
    27,
    28,
  ], 'IN');
  $query_2 = $this->connection
    ->select('test', 't')
    ->fields('t', [
    'name',
  ])
    ->condition('age', 28);
  $query_1
    ->union($query_2, 'ALL');
  $names = $query_1
    ->execute()
    ->fetchCol();

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