public function testOf()
 {
     $prm = Primitive::clazz('name');
     try {
         $prm->of('InExIsNaNtClass');
         $this->fail();
     } catch (WrongArgumentException $e) {
         // pass
     }
     $this->assertFalse($prm->of('Enumeration')->importValue('IdentifiableObject'));
     $this->assertTrue($prm->of('Identifiable')->importValue('IdentifiableObject'));
     $this->assertTrue($prm->of('IdentifiableObject')->importValue('IdentifiableObject'));
 }