public void ObradiReviziju_LosiParametri(string putanjaDoVC, string nazivIzabranogFajla, int izbor, string putanjaDoOriginalnogFajla)
 {
     Assert.Throws <ArgumentException>(() => { ambassadorService.ObradiReviziju("", "", 0, ""); });
     Assert.Throws <ArgumentException>(() => { ambassadorService.ObradiReviziju(@"C:\Users\Maja\Downloads\Test", "bla.txt", -3, @"C:\Users\Maja\Downloads\Test\bla.txt"); });
     Assert.Throws <ArgumentNullException>(() => { ambassadorService.ObradiReviziju(null, null, 2, null); });
     Assert.Throws <ArgumentNullException>(() => { ambassadorService.ObradiReviziju(@"C:\Users\Maja\Downloads\Test", "bla.txt", 1, null); });
 }