public void TrySubtract_Ints_ReturnsDouble()
{
int n1 = 10;
int n2 = 12;
object d;
Assert.IsTrue(ReflectionMath.TrySubtract(n2, n1, out d));
Assert.IsTrue(d is int);
Assert.AreEqual(2, (int)d);
}
public void TrySubtract_DateTime_ReturnsTimeSpan()
{
var t1 = DateTime.Now;
var t2 = t1.AddDays(2);
object d;
Assert.IsTrue(ReflectionMath.TrySubtract(t2, t1, out d));
Assert.IsTrue(d is TimeSpan);
Assert.AreEqual(2, ((TimeSpan)d).TotalDays);
}
public void TrySubtract_Doubles_ReturnsDouble()
{
double n1 = 10;
double n2 = 12;
object d;
Assert.IsTrue(ReflectionMath.TrySubtract(n2, n1, out d));
Assert.IsTrue(d is double);
Assert.AreEqual(2, (double)d);
}
public void TrySubtract_Points_ReturnsVector()
{
var p1 = new Point(10, 10);
var p2 = new Point(8, 3);
var d = p2 - p1;
object o1 = p1;
object o2 = p2;
object d2;
Assert.IsTrue(ReflectionMath.TrySubtract(o2, o1, out d2));
Assert.AreEqual(d, d2);
}
public void TrySubtract_PointFromVector_Fails()
{
object r;
Assert.IsFalse(ReflectionMath.TrySubtract(new Vector(0, 0), new Point(1, 1), out r));
}