public void When_getting_bounding_box_Then_works(double longitude, double latitude, decimal radius, double minLong, double minLat, double maxLong, double maxLat)
        {
            var coordinates = new Coordinates(longitude, latitude);

            var actual = coordinates.BoundingBox(new Kilometers(radius));

            Assert.That(actual.SouthWest, Is.EqualTo(new Coordinates(minLong, minLat)));
            Assert.That(actual.NorthEast, Is.EqualTo(new Coordinates(maxLong, maxLat)));
        }