CaseSensitivityTest.php

<?php

declare (strict_types=1);
namespace Drupal\KernelTests\Core\Database;

use PHPUnit\Framework\Attributes\Group;
use PHPUnit\Framework\Attributes\RunTestsInSeparateProcesses;

/**
 * Tests handling case sensitive collation.
 */
class CaseSensitivityTest extends DatabaseTestBase {
  
  /**
   * Tests BINARY collation in MySQL.
   */
  public function testCaseSensitiveInsert() : void {
    $num_records_before = $this->connection
      ->query('SELECT COUNT(*) FROM {test}')
      ->fetchField();
    $this->connection
      ->insert('test')
      ->fields([
      // A record already exists with name 'John'.
'name' => 'john',
      'age' => 2,
      'job' => 'Baby',
    ])
      ->execute();
    $num_records_after = $this->connection
      ->query('SELECT COUNT(*) FROM {test}')
      ->fetchField();
    $this->assertSame($num_records_before + 1, (int) $num_records_after, 'Record inserts correctly.');
    $saved_age = $this->connection
      ->query('SELECT [age] FROM {test} WHERE [name] = :name', [
      ':name' => 'john',
    ])
      ->fetchField();
    $this->assertSame('2', $saved_age, 'Can retrieve after inserting.');
  }

}