public void CanSetOrderOfTwoJoinedElements()
{
int cuttingElementId = 208422;
int cutElementId = 208572;
int unjoinedElementId = 208259;
List <int> unchangedOrder = new List <int>()
{
cuttingElementId, cutElementId
};
string invalidSwitchJoinOrderMessages = Revit.Properties.Resources.InvalidSwitchJoinOrder;
// Joined elements
var cuttingFraming = ElementSelector.ByElementId(cuttingElementId, true);
var cutFraming = ElementSelector.ByElementId(cutElementId, true);
// Not Joined element
var unjoinedElement = ElementSelector.ByElementId(unjoinedElementId, true);
// Elements already in the wanted join order
IEnumerable <Element> orderedElements = Element.SetGeometryJoinOrder(cuttingFraming, cutFraming);
List <int> orderedElementIds = orderedElements.Select(elem => elem.Id).ToList();
CollectionAssert.AreEqual(unchangedOrder, orderedElementIds);
// Elements not in wanted join order
IEnumerable <Element> switchedElements = Element.SetGeometryJoinOrder(cutFraming, cuttingFraming);
List <int> changedElementIds = switchedElements.Select(elem => elem.Id).ToList();
unchangedOrder.Reverse();
CollectionAssert.AreEqual(unchangedOrder, changedElementIds);
// Element not joined
var ex = Assert.Throws <InvalidOperationException>(() => Element.SetGeometryJoinOrder(cutFraming, unjoinedElement));
Assert.AreEqual(ex.Message, invalidSwitchJoinOrderMessages);
}
