class ExistingDrupal8StyleDatabaseConnectionInSettingsPhpTest

class ExistingDrupal8StyleDatabaseConnectionInSettingsPhpTest extends BrowserTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $driver = Database::getConnection()->driver();
    if (!in_array($driver, [
      'mysql',
      'pgsql',
      'sqlite',
    ])) {
      $this->markTestSkipped("This test does not support the {$driver} database driver.");
    }
    $filename = $this->siteDirectory . '/settings.php';
    chmod($filename, 0777);
    $contents = file_get_contents($filename);
    $autoload = "'autoload' => 'core/modules/{$driver}/src/Driver/Database/{$driver}/',";
    $contents = str_replace($autoload, '', $contents);
    $namespace_search = "'namespace' => 'Drupal\\\\{$driver}\\\\Driver\\\\Database\\\\{$driver}',";
    $namespace_replace = "'namespace' => 'Drupal\\\\Core\\\\Database\\\\Driver\\\\{$driver}',";
    $contents = str_replace($namespace_search, $namespace_replace, $contents);
    // Add a replica connection to the database settings.
    $contents .= "\$databases['default']['replica'][] = array (\n";
    $contents .= "  'database' => 'db',\n";
    $contents .= "  'username' => 'db',\n";
    $contents .= "  'password' => 'db',\n";
    $contents .= "  'prefix' => 'test22806835',\n";
    $contents .= "  'host' => 'db',\n";
    $contents .= "  'port' => 3306,\n";
    $contents .= "  {$namespace_replace}\n";
    $contents .= "  'driver' => 'mysql',\n";
    $contents .= ");\n";
    file_put_contents($filename, $contents);
  }
  
  /**
   * Confirms that the site works with Drupal 8 style database connection array.
   */
  public function testExistingDrupal8StyleDatabaseConnectionInSettingsPhp() {
    $this->drupalLogin($this->drupalCreateUser());
    $this->assertSession()
      ->addressEquals('user/2');
    $this->assertSession()
      ->statusCodeEquals(200);
    // Make sure that we are have tested with the Drupal 8 style database
    // connection array.
    $filename = $this->siteDirectory . '/settings.php';
    $contents = file_get_contents($filename);
    $driver = Database::getConnection()->driver();
    $this->assertStringContainsString("'namespace' => 'Drupal\\\\Core\\\\Database\\\\Driver\\\\{$driver}',", $contents);
    $this->assertStringContainsString("'driver' => '{$driver}',", $contents);
    $this->assertStringNotContainsString("'autoload' => 'core/modules/{$driver}/src/Driver/Database/{$driver}/", $contents);
  }
  
  /**
   * Confirms that the replica database connection works.
   */
  public function testReplicaDrupal8StyleDatabaseConnectionInSettingsPhp() {
    $this->drupalLogin($this->drupalCreateUser());
    $replica = Database::getConnection('replica', 'default');
    $this->assertInstanceOf(Connection::class, $replica);
  }

}