public void ResolveShortestTrip_ShouldReturnExpectedDistanceBasedOnTheRoute(string from, string to, int expectedDistance)
{
// Act
var trip = TripService.FindShortest(Railway, Railway.GetTownByName(from), Railway.GetTownByName(to));
// Assert
Assert.Equal(expectedDistance, trip.TotalDistance);
}
public void Search_ShouldReturnExpectedMaxTrips_WithDistanceLessThanMaxDistance(string from, string to, int maxDistance, int expectedTrips)
{
// Act
var trips = TripService.Search(Railway.GetTownByName(from), Railway.GetTownByName(to), trip => trip.TotalDistance >= maxDistance);
// Assert
Assert.Equal(expectedTrips, trips.Count());
}
public void Search_ShouldReturnExpectedMaxTrips_WithExactStops(string from, string to, int stops, int expectedTrips)
{
// Act
var trips = TripService
.Search(Railway.GetTownByName(from), Railway.GetTownByName(to), trip => trip.Stops > stops, trip => trip.Stops == stops);
// Assert
Assert.Equal(expectedTrips, trips.Count());
}
public void ResolveDistance_WhenRouteDoesNotExists_ShouldThrowInvalidRouteException()
{
// Arrange
var path = new Path();
path.AddStop(Railway.GetTownByName("A"));
path.AddStop(Railway.GetTownByName("E"));
path.AddStop(Railway.GetTownByName("D"));
// Act and assert
Assert.Throws <InvalidRouteException>(() => TripService.ResolveDistance(path));
}
public void ResolveDistance_ShouldReturnDistanceBetweenABC(int expectedDistance, params string[] towns)
{
// Arrange
var path = new Path();
foreach (var town in towns)
{
path.AddStop(Railway.GetTownByName(town));
}
// Act
var actualDistance = TripService.ResolveDistance(path);
// Assert
Assert.Equal(expectedDistance, actualDistance);
}
public void ResolveShortestTrip_WhenRouteDoesNotExist_ShouldThrowInvalidRouteException()
{
// Act and Assert
Assert.Throws <InvalidRouteException>(() => TripService.FindShortest(Railway,
Railway.GetTownByName("C"), Railway.GetTownByName("A")));
}
public void Search_WhenStopConditionIsNull_ShouldThrowArgumentNullException()
{
// Act and Assert
Assert.Throws <ArgumentNullException>(() =>
TripService.Search(Railway.GetTownByName("A"), Railway.GetTownByName("B"), null));
}
