public function testGetterSetter()
 {
     $sUT = new Item();
     $id = 'test';
     $type = 'im';
     $additionalProperties = false;
     $required = 'test';
     $sUT->setId($id);
     $sUT->setType($type);
     $sUT->setAdditionalProperties($additionalProperties);
     $sUT->addRequired($required);
     $this->assertEquals($id, $sUT->getId());
     $this->assertEquals($type, $sUT->getType());
     $this->assertEquals($additionalProperties, $sUT->hasAdditionalProperties());
     $this->assertEquals(array($required), $sUT->getRequired());
 }