public void DistanceBetweenTest()
{
// Used http://www.movable-type.co.uk/scripts/latlong.html to
// determine expected distances.
LatLong DublinOffice = new LatLong(53.3393, -6.2576841),
DavidBehan = new LatLong(52.833502, -8.522366),
MichaelAhearn = new LatLong(52.966, -6.463),
OliveAhearn = new LatLong(53, -7);
Assert.AreEqual(0, Earth.DistanceBetween(DublinOffice, DublinOffice), "DublinOffice");
Assert.AreEqual(161.4, Earth.DistanceBetween(DublinOffice, DavidBehan), "DavidBehan");
Assert.AreEqual(43.7, Earth.DistanceBetween(DublinOffice, MichaelAhearn), "MichaelAhearn");
Assert.AreEqual(62.2, Earth.DistanceBetween(DublinOffice, OliveAhearn), "OliveAhearn");
}