Author: Daniele Alessandri (suppakilla@gmail.com)
 /**
  * @group disconnected
  */
 public function testIsDiscarded()
 {
     $state = new MultiExecState();
     $this->assertFalse($state->isDiscarded());
     $state->set(MultiExecState::DISCARDED);
     $this->assertTrue($state->isDiscarded());
 }