public void CanExtremityTypeSetBeginEnd()
{
Assert.IsNull(((ExtremityType?)null).SetBegin(true));
Assert.IsNull(((ExtremityType?)null).SetEnd(true));
Assert.IsNull(((ExtremityType?)null).SetBegin(false));
Assert.IsNull(((ExtremityType?)null).SetEnd(false));
ExtremityType value = ExtremityType.Both;
Assert.AreEqual(ExtremityType.JustEnd, value = value.SetBegin(false));
Assert.AreEqual(ExtremityType.JustEnd, value = value.SetEnd(true));
Assert.AreEqual(ExtremityType.Both, value = value.SetBegin(true));
Assert.AreEqual(ExtremityType.JustBegin, value = value.SetEnd(false));
Assert.AreEqual(ExtremityType.None, value.SetBegin(false));
}
/// <summary>
/// Recompute the extremity type from its current <paramref name="value"/>
/// and the given environmental flags: <paramref name="matchFrom"/> and
/// <paramref name="matchTo"/> control the Begin and End portion of the
/// extremity type, but only take effect if the corresponding
/// <paramref name="processFrom"/> or <paramref name="processTo"/> flag
/// is set.
/// </summary>
/// <returns>The computed new extremity type.</returns>
public static ExtremityType Recompute(this ExtremityType value,
bool processFrom, bool processTo,
bool matchFrom, bool matchTo)
{
if (processFrom)
{
value = value.SetBegin(matchFrom);
}
if (processTo)
{
value = value.SetEnd(matchTo);
}
return(value);
}
public static ExtremityType?SetEnd(this ExtremityType?value, bool flag)
{
return(value?.SetEnd(flag));
}
