public function testCanNotExecuteUnregisteredAction()
{
$this->request = $this->prepareHttpRequest('action/unregistered', 'POST', [], false, true);
$this->createService();
$result = $this->actions->execute('unregistered', 'referrer');
$this->assertInstanceOf(ErrorResponse::class, $result);
$this->assertEquals(ELGG_HTTP_NOT_IMPLEMENTED, $result->getStatusCode());
$this->assertEquals(elgg_echo('actionundefined', ['unregistered']), $result->getContent());
$this->assertEquals('referrer', $result->getForwardURL());
}