public function FetchTest::testQueryFetchCol in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/KernelTests/Core/Database/FetchTest.php \Drupal\KernelTests\Core\Database\FetchTest::testQueryFetchCol()

Confirms that we can fetch an entire column of a result set at once.

File

core/tests/Drupal/KernelTests/Core/Database/FetchTest.php, line 170

Class

FetchTest

Tests the Database system's various fetch capabilities.

Namespace

Drupal\KernelTests\Core\Database

Code

public function testQueryFetchCol() {
  $result = $this->connection
    ->query('SELECT [name] FROM {test} WHERE [age] > :age', [
    ':age' => 25,
  ]);
  $column = $result
    ->fetchCol();
  $this
    ->assertCount(3, $column, 'fetchCol() returns the right number of records.');
  $result = $this->connection
    ->query('SELECT [name] FROM {test} WHERE [age] > :age', [
    ':age' => 25,
  ]);
  $i = 0;
  foreach ($result as $record) {
    $this
      ->assertSame($column[$i++], $record->name, 'Column matches direct access.');
  }
}