public void CalculateLocationDistances_GivenLocations_ExpectDistancesAdded()
{
ConcurrentBag <LocationImpl> locations = new ConcurrentBag <LocationImpl>()
{
location1, location2, location3, location4
};
locationService.CalculateLocationDistances(locations);
LocationImpl result = locations.First(loc => loc.Coordinates.Latitude.Equals(5.0));
Assert.Equal(location3.Guid, result.DistanceToOthers.ElementAt(0).Value);
Assert.Equal(location4.Guid, result.DistanceToOthers.ElementAt(1).Value);
Assert.Equal(location2.Guid, result.DistanceToOthers.ElementAt(2).Value);
}