//Constructor
public AverageObserver(ListBox lb, WeatherSubject subject)
: base(lb, subject)
{
// Initialise variables
runningTemp = 0;
runningHumidity = 0;
runningPressure = 0;
avgCount = 0;
}
public Form1()
{
InitializeComponent();
// Inititalise them
sub = new WeatherSubject();
cO = new CurrentObserver(lbCurrent, sub);
aO = new AverageObserver(lbAverage, sub);
fO = new ForecastObserver(lbForecast, sub);
}
public Form1()
{
InitializeComponent();
//Instantiate sub+obs
ws = new WeatherSubject();
tObs = new TemperatureObserver(lbTemp, ws);
aObs = new AverageObserver(lbAverages, ws);
fObs = new ForeCastObserver(lbForecast, ws);
}
//Constructor
public WeatherObserver(ListBox lb, WeatherSubject subject)
{
// Inititalise variables
currentTemp = 0;
currentHumidity = 0;
currentPressure = 0;
this.lb = lb;
this.subject = subject;
// Adds Observer to the Observer list
subject.AddObservers(this);
}
//Ctor
public WeatherObserver(ListBox lb, WeatherSubject ws)
{
//Inititialise attributes
cTemp = 0;
cHumid = 0;
cPressure = 0;
//Bind form control to local variable (I still can't explain these lines very well)
this.lb = lb;
this.ws = ws;
//Add this brand-spanking new obs to the obs list
ws.AddObserver(this);
}
public void AvgObs_UpdateValues_ReturnsExpected()
{
//Create needed objects
ListBox lb = new ListBox();
WeatherSubject ws = new WeatherSubject();
AverageObserver aObs = new AverageObserver(lb, ws);
//Update tobs with some values
aObs.Update(23,1,1);
double expected = 23.00;
double actual = aObs.CCompTemp;
Assert.AreEqual(expected, actual);
}
public void ForecastObs_UpdateValues_ReturnsExpected()
{
//Create needed objects
ListBox lb = new ListBox();
WeatherSubject ws = new WeatherSubject();
ForeCastObserver fcObs = new ForeCastObserver(lb,ws);
//Update tobs with some values
fcObs.Update(1, 1, 1);
//Just test on temperature, for full code coverage id need:
//~3 tests to cover each branch of temperature-related strings
//*3 for the amount of forecast options (temp,humid,baro)
string expected = "Nippy";
string actual = fcObs.Temp;
Assert.AreEqual(expected, actual);
}
public void ObserverList_AddObserver_ReturnsExpected()
{
//Create needed objects
ListBox lb = new ListBox();
WeatherSubject ws = new WeatherSubject();
List<IWeatherObserver> obList = new List<IWeatherObserver>();
//Make 2 observers, do not manually add these
//Their ctor adds them to the passed subject
ForeCastObserver fcObs1 = new ForeCastObserver(lb, ws);
ForeCastObserver fcObs2 = new ForeCastObserver(lb, ws);
//Expected size of list
int expected = 2;
int actual = ws.ObsList.Count;
//Check observer was added to observer list properly
Assert.AreEqual(expected, actual);
}
public void ObserverList_RemoveObserver_ReturnsExpected()
{
//Create needed objects
ListBox lb = new ListBox();
WeatherSubject ws = new WeatherSubject();
List<IWeatherObserver> obList = new List<IWeatherObserver>();
//Make 2 observers, do not manually add these
//Their ctor adds them to the passed subject
ForeCastObserver fcObs1 = new ForeCastObserver(lb, ws);
ForeCastObserver fcObs2 = new ForeCastObserver(lb, ws);
//Remove one from the list, decoupling the observer
//this makes it essentially inactive
ws.RemoveObserver(fcObs2);
//Expected size of list
int expected = 1;
int actual = ws.ObsList.Count;
//Check observer was added to observer list properly
Assert.AreEqual(expected, actual);
}
public CurrentObserver(WeatherSubject weatherSubject)
: base(weatherSubject)
{
}
public ForecastObserver(WeatherSubject weatherSubject)
: base(weatherSubject)
{
}
public AveragesObserver(WeatherSubject weatherSubject)
: base(weatherSubject)
{
measureList = new List <Measurements>();
}
public AveragesObserver(WeatherSubject weatherSubject)
: base(weatherSubject)
{
measureList = new List<Measurements>();
}
//Constructor
public CurrentObserver(ListBox lb, WeatherSubject subject)
: base(lb, subject)
{
}
public ForecastObserver(WeatherSubject weatherSubject)
: base(weatherSubject)
{
}
public CurrentObserver(WeatherSubject weatherSubject)
: base(weatherSubject)
{
}
//Constructor
public ForecastObserver(ListBox lb, WeatherSubject subject)
: base(lb, subject)
{
weatherStr = "";
}
