function TestSetupTrait::changeDatabasePrefix

Changes the database connection to the prefixed one.

File

core/lib/Drupal/Core/Test/TestSetupTrait.php, line 162

Class

TestSetupTrait

Provides a trait for shared test setup functionality.

Namespace

Code

protected function changeDatabasePrefix() {
  if (empty($this->databasePrefix)) {
    $this->prepareDatabasePrefix();
  }
  // If the test is run with argument dburl then use it.
  $db_url = getenv('SIMPLETEST_DB');
  if (!empty($db_url)) {
    // Ensure no existing database gets in the way. If a default database
    // exists already it must be removed.
    Database::removeConnection('default');
    $database = Database::convertDbUrlToConnectionInfo($db_url, $this->root ?? DRUPAL_ROOT, TRUE);
    Database::addConnectionInfo('default', 'default', $database);
  }
  // Clone the current connection and replace the current prefix.
  $connection_info = Database::getConnectionInfo('default');
  if (is_null($connection_info)) {
    throw new \InvalidArgumentException('There is no database connection so no tests can be run. You must provide a SIMPLETEST_DB environment variable to run PHPUnit based functional tests outside of run-tests.sh.');
  }
  else {
    Database::renameConnection('default', 'simpletest_original_default');
    foreach ($connection_info as $target => $value) {
      // Replace the full table prefix definition to ensure that no table
      // prefixes of the test runner leak into the test.
      $connection_info[$target]['prefix'] = $value['prefix'] . $this->databasePrefix;
    }
    Database::addConnectionInfo('default', 'default', $connection_info['default']);
  }
}