public void test_the_distance_from_one_loc_to_another()
{
Location loc1 = new Location(5, 6);
Location loc2 = new Location(5, 6);
Location loc3 = new Location(5, 5);
Location loc4 = new Location(20, -5);
Specify.That(loc1.distance_from(loc2)).ShouldEqual(0);
float x_dist = 5 - 5;
float y_dist = 6 - 5;
Specify.That(loc1.distance_from(loc3)).ShouldEqual((float)Math.Sqrt(Math.Pow(x_dist, 2) + Math.Pow(y_dist, 2)));
x_dist = 5 - 5;
y_dist = 5 - 6;
Specify.That(loc3.distance_from(loc1)).ShouldEqual((float)Math.Sqrt(Math.Pow(x_dist, 2) + Math.Pow(y_dist, 2)));
x_dist = 5 - 20;
y_dist = 6 - -5;
Specify.That(loc1.distance_from(loc4)).ShouldEqual((float)Math.Sqrt(Math.Pow(x_dist, 2) + Math.Pow(y_dist, 2)));
}