/**
  * @covers \Heystack\Core\State\Backends\Session::setSession
  * @covers \Heystack\Core\State\Backends\Session::getKeys
  * @covers \Heystack\Core\State\Backends\Session::removeAll
  * @covers \Heystack\Core\State\Backends\Session::removeByKey
  */
 public function testRemoveAll()
 {
     $session = new Session();
     $session->setSession(new \Session(['test' => 'hello']));
     $session->removeAll();
     $this->assertNull($session->getByKey('test'));
 }