public function SelectTest::testUnionCount 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::testUnionCount()
2. 10 core/tests/Drupal/KernelTests/Core/Database/SelectTest.php \Drupal\KernelTests\Core\Database\SelectTest::testUnionCount()

Tests that we can get a count query for a UNION Select query.

File

core/tests/Drupal/KernelTests/Core/Database/SelectTest.php, line 354

Class

SelectTest

Tests the Select query builder.

Namespace

Drupal\KernelTests\Core\Database

Code

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

  // Ensure the counts match.
  $this
    ->assertSame(count($names), $count, "The count query's result matched the number of rows in the UNION query.");
}