public void CanExtremityTypeRecompute()
{
// Treat null as Both (the default value)
// unless no ends are being processed:
ExtremityType?nullable = null;
Assert.AreEqual(ExtremityType.Both, nullable.Recompute(true, true, true, true));
Assert.IsNull(nullable.Recompute(false, false, true, true));
// There remain 4 * 2 * 2 * 2 * 2 = 64 possibilities:
ExtremityType value = ExtremityType.Both;
Assert.AreEqual(ExtremityType.Both, value.Recompute(false, false, false, false));
Assert.AreEqual(ExtremityType.Both, value.Recompute(false, false, true, false));
Assert.AreEqual(ExtremityType.Both, value.Recompute(false, false, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(false, false, true, true));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(true, false, false, false));
Assert.AreEqual(ExtremityType.Both, value.Recompute(true, false, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(true, false, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(true, false, true, true));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(false, true, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(false, true, true, false));
Assert.AreEqual(ExtremityType.Both, value.Recompute(false, true, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(false, true, true, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(true, true, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(true, true, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(true, true, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(true, true, true, true));
value = ExtremityType.JustBegin;
Assert.AreEqual(ExtremityType.JustBegin,
value.Recompute(false, false, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(false, false, true, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(false, false, false, true));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(false, false, true, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(true, false, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(true, false, true, false));
Assert.AreEqual(ExtremityType.None, value.Recompute(true, false, false, true));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(true, false, true, true));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(false, true, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(false, true, true, false));
Assert.AreEqual(ExtremityType.Both, value.Recompute(false, true, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(false, true, true, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(true, true, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(true, true, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(true, true, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(true, true, true, true));
value = ExtremityType.JustEnd;
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(false, false, false, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(false, false, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(false, false, false, true));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(false, false, true, true));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(true, false, false, false));
Assert.AreEqual(ExtremityType.Both, value.Recompute(true, false, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(true, false, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(true, false, true, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(false, true, false, false));
Assert.AreEqual(ExtremityType.None, value.Recompute(false, true, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(false, true, false, true));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(false, true, true, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(true, true, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(true, true, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(true, true, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(true, true, true, true));
value = ExtremityType.None;
Assert.AreEqual(ExtremityType.None, value.Recompute(false, false, false, false));
Assert.AreEqual(ExtremityType.None, value.Recompute(false, false, true, false));
Assert.AreEqual(ExtremityType.None, value.Recompute(false, false, false, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(false, false, true, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(true, false, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(true, false, true, false));
Assert.AreEqual(ExtremityType.None, value.Recompute(true, false, false, true));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(true, false, true, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(false, true, false, false));
Assert.AreEqual(ExtremityType.None, value.Recompute(false, true, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(false, true, false, true));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(false, true, true, true));
Assert.AreEqual(ExtremityType.None, value.Recompute(true, true, false, false));
Assert.AreEqual(ExtremityType.JustBegin, value.Recompute(true, true, true, false));
Assert.AreEqual(ExtremityType.JustEnd, value.Recompute(true, true, false, true));
Assert.AreEqual(ExtremityType.Both, value.Recompute(true, true, true, true));
}
