PHP: Peridot and Propel

Wanted to share a little configuration I just finished making for some Peridot and Leo -based tests which work with Propel models.

A bunch of these tests write data to the database using the Propel models, and I need a clean slate DB before each test. I also need a clean slate HTTP session. Here’s some code ( from peridot.php ) that uses transactions to achieve that:

class MyScope extends Scope {
  function __construct( $emitter ) {
    $emitter->on( 'peridot.execute', function() {
      $this->conn = Propel::getConnection();
    } );

    $emitter->on( 'test.start', function() {
      self::destroySession();
      // have to rollback and begin here.
      // it was unreliable when I rolled back on test.end
      $this->conn->rollback();
      $this->conn->beginTransaction();
    } );
  }
  private static function destroySession() {
    session_start();
    $_SESSION =[];

    // If it's desired to kill the session, also delete the session cookie.
    // Note: This will destroy the session, and not just the session data!
    if (ini_get("session.use_cookies")) {
      $params = session_get_cookie_params();
      setcookie(session_name(), '', time() - 42000,
        $params["path"], $params["domain"],
        $params["secure"], $params["httponly"]
      );
    }

    session_destroy();
  }
}

return function($emitter) {
  $gmsScope = new GmsScope( $emitter );

  //add this scope into every suite
  $emitter->on('suite.start', function($test) use ($gmsScope) {
    $test->getScope()->peridotAddChildScope($gmsScope);
  });
};
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