public void NumberGenerator_ExplicitCallOfAttachASecondTime_ShouldThrowInvalidOperationException()
{
//Arrange
RandomNumberGenerator numberGenerator = new RandomNumberGenerator();
BaseObserver baseObserver = new BaseObserver(numberGenerator, 5);
//Act
numberGenerator.Attach(baseObserver);
numberGenerator.Attach(baseObserver);
//Assert
Assert.Fail("InvalidOperationException was expected!");
}
static void Main()
{
// Zufallszahlengenerator erstellen
RandomNumberGenerator numberGenerator = new RandomNumberGenerator(250);
// Beobachter erstellen
BaseObserver baseObserver = new BaseObserver(numberGenerator, 10);
StatisticsObserver statisticsObserver = new StatisticsObserver(numberGenerator, 20);
RangeObserver rangeObserver = new RangeObserver(numberGenerator, 5, 200, 300);
//QuickTippObserver quickTippObserver = new QuickTippObserver(numberGenerator);
// Nummerngenerierung starten
// Resultat ausgeben
numberGenerator.Attach(statisticsObserver);
numberGenerator.Attach(rangeObserver);
numberGenerator.StartNumberGeneration();
}
public void NumberGenerator_AttachWithNullAsObserver_ShouldThrowArgumentNullException()
{
//Arrange
RandomNumberGenerator numberGenerator = new RandomNumberGenerator();
//Act
numberGenerator.Attach(null);
//Assert
Assert.Fail("ArgumentNullException was expected!");
}
public void NumberGenerator_CallDetach_ShouldWork()
{
//Arrange
RandomNumberGenerator numberGenerator = new RandomNumberGenerator();
BaseObserver baseObserver = new BaseObserver(numberGenerator, 5);
numberGenerator.Attach(baseObserver);
//Act
try
{
numberGenerator.Detach(baseObserver);
}
catch (Exception ex)
{
//Assert
Assert.Fail("Expected no exception, but got: " + ex.Message);
}
}
