public void GetLastKnownLocationReturnsCorrectPosition()
{
int timeToTimeOut = 10000;
LocationRecorded firstPosition = new LocationRecorded()
{
Recorded = DateTimeOffset.UtcNow.AddMilliseconds(-timeToTimeOut)
};
LocationRecorded secondPosition = new LocationRecorded()
{
Recorded = DateTimeOffset.UtcNow
};
LocationRecorded positionReturned = null;
Mock <ILocationListener> listener = new Mock <ILocationListener>();
TestSchedulers scheduler = new TestSchedulers();
LocationService service =
new LocationService(listener.Object, NullExceptionService, scheduler);
listener
.Setup(x => x.PositionChanged())
.Returns(new[] { firstPosition, secondPosition }.ToObservable());
service
.GetLastKnownDeviceLocation(timeToTimeOut - 1, timeToTimeOut)
.Subscribe(pos => positionReturned = pos);
// Advance far beyond the necessary time
scheduler
.TaskPool
.AdvanceBy(timeToTimeOut);
Assert.Equal(secondPosition, positionReturned);
}
public void PositionDataSetAfterGivenTime()
{
LocationRecorded positionExpected = new LocationRecorded();
LocationRecorded positionReturned = null;
int timeToTimeOut = 10000;
Mock <ILocationListener> listener = new Mock <ILocationListener>();
TestSchedulers scheduler = new TestSchedulers();
LocationService service =
new LocationService(listener.Object, NullExceptionService, scheduler);
// return data after half of timeout
listener
.Setup(x => x.PositionChanged())
.Returns(
Observable.Timer(TimeSpan.FromMilliseconds(timeToTimeOut / 2), scheduler.TaskPool)
.Select(_ => positionExpected)
);
service
.GetDeviceLocation(timeToTimeOut)
.Subscribe(pos => positionReturned = pos);
// Advance far beyond the necessary time
scheduler
.TaskPool
.AdvanceBy(TimeSpan.FromMilliseconds(timeToTimeOut * 2).Ticks);
Assert.Equal(positionExpected, positionReturned);
}
void DisplayPosition(LocationRecorded position)
{
LocationChanged = $"{position.Recorded} {position.Longitude}, {position.Latitude}";
}
