public void TestEarthquakeInformationCount()
{
var earthquakeInformation = new EarthquakeInformation();
var earthquakeInstances = earthquakeInformation.EarthquakeInstances;
Assert.IsTrue(earthquakeInstances.Count() > 0);
}
public void TestEarthquakeInformationLatestSyncTime()
{
var earthquakeInformation = new EarthquakeInformation();
var latestSyncTime = earthquakeInformation.LatestSyncTime;
Assert.IsNotNull(latestSyncTime);
}
/// <summary>
/// ViewModel constructor initializes the model to obtain earthquake information.
/// This also requests the model to monitor for realtime earthquake information. The model does
/// a call back periodically when the information is obtained so that the view can update.
/// </summary>
public EarthquakeMonitorViewModel()
{
try
{
EarthquakeInformationTitle = Properties.Settings.Default.EarthquakeInformationTitle;
// Instantiate the model class.
EarthquakeInformation = new EarthquakeInformation();
if (EarthquakeInformation != null)
{
// Obtain the information about earthquakes in the last time span (e.g 1 hour).
// Initialize the observable collection which notifies the view.
EarthquakeInstances = new ObservableCollection <IEarthquakeInstance>(EarthquakeInformation.EarthquakeInstances);
// Get the time at which the earthquake information was requested.
EarthquakeInstancesSyncTime = EarthquakeInformation.LatestSyncTime;
}
else
{
EarthquakeInstances = new ObservableCollection <IEarthquakeInstance>();
}
}
catch (Exception)
{
EarthquakeInformationTitle = "Unable to obtain earthquake information.";
}
try
{
// Request model to periodically monitor for updated earthquake information.
// The method call back is passed in as the parameter.
if (Properties.Settings.Default.EarthquakeInformationContinousMonitoring)
{
EarthquakeInformation.Monitor(UpdateEarthquakeInformation);
}
}
catch (Exception)
{
EarthquakeInformationTitle = "Unable to obtain realtime earthquake information.";
}
}
