public void getRandomAccessMemoryFromDatabase()
        {
            RandomAccessMemoryDataAccess dataAccess = new RandomAccessMemoryDataAccess();
            ProducerDataAccess producerDataAccess = new ProducerDataAccess();
            RandomAccessMemory ram = new RandomAccessMemory();

            ram.Description = "Dies ist ein Test";
            ram.Memory = 8000;
            ram.ClockRate = 12000;
            ram.Producer = producerDataAccess.GetLastEntity<Producer>();

            dataAccess.Save(ram);
            RandomAccessMemory dbRAM = dataAccess.GetLastEntity<RandomAccessMemory>();

            Assert.AreEqual(ram.Memory, dbRAM.Memory);
        }
        /// <summary>
        /// Ruft die Informationen aus dem Formular ab und speichert sie in die Datenbank.
        /// Führt eine Umrechnung in MB aus und wirft eine Fehlermeldung, wenn die Validierung
        /// fehlschlägt.
        /// </summary>
        private void RamSave_Click(object sender, RoutedEventArgs e)
        {
            RandomAccessMemoryDataAccess dataRandom = new RandomAccessMemoryDataAccess();
            ProducerDataAccess dataProducer = new ProducerDataAccess();
            RandomAccessMemoryValidator validator = new RandomAccessMemoryValidator();

            try
            {
                this.setEntityWithFormData(dataProducer);

                if (!validator.CheckConsistency(this.entity))
                {
                    ErrorHandler.ShowErrorMessage("Validierung fehlgeschlagen", ErrorHandler.VALIDATION_FAILED);
                }
                else
                {
                    if (this.isAvailable)
                        dataRandom.Update(this.entity);
                    else
                        dataRandom.Save(this.entity);
                    this.Close();
                }
            }
            catch (FormatException exception)
            {
                ErrorHandler.ShowErrorMessage(exception, ErrorHandler.WRONG_FORMAT);
            }
            catch (MySql.Data.MySqlClient.MySqlException exception)
            {
                ErrorHandler.ShowErrorMessage(exception, ErrorHandler.SAVE_WENT_WRONG);
            }
            catch (System.OverflowException exception)
            {
                ErrorHandler.ShowErrorMessage(exception, ErrorHandler.DATA_TOO_LONG);
            }
        }