public void NotifyOtherServicesWhenOpenFileEventOccurs()
{
// Arrange
EventListener loggingListener = new LoggingListener();
EventListener emailAlertListener = new EmailAlertListener();
var textEditor = new TextEditor();
textEditor.SubscribeEventListener("openFile", loggingListener);
textEditor.SubscribeEventListener("openFile", emailAlertListener);
// Act
textEditor.OpenFile();
// Assert
Assert.Equal("HelloWorld.txt", loggingListener.LastEventData);
Assert.Equal("HelloWorld.txt", emailAlertListener.LastEventData);
}
public void NotifyOtherServicesWhenSaveFileEventOccurs()
{
// Arrange
EventListener loggingListener = new LoggingListener();
EventListener emailAlertListener = new EmailAlertListener();
var textEditor = new TextEditor();
textEditor.SubscribeEventListener("saveFile", loggingListener);
textEditor.SubscribeEventListener("saveFile", emailAlertListener);
// (Unsubscribe e-mail alert listener)
textEditor.UnsubscribeEventListener("saveFile", emailAlertListener);
// Act
textEditor.SaveFile();
// Assert
Assert.Equal("HelloWorld.txt", loggingListener.LastEventData);
Assert.Equal(string.Empty, emailAlertListener.LastEventData);
}
