public IEnumerator DragRemoveSelectionFromStackNode()
{
// Creates a stack and add node1, node2, node3
StackNode stack = CreateStackNode(k_DefaultX, k_DefaultY);
stack.AddElement(m_Node1);
stack.AddElement(m_Node2);
stack.AddElement(m_Node3);
// Allow two frames to compute the layout of the stack and nodes
yield return(null);
yield return(null);
// Select node1 and node2
m_Node1.Select(graphView, false);
m_Node2.Select(graphView, true);
Vector2 start = m_Node1.worldBound.center;
Vector2 outsideStackNode = stack.LocalToWorld(k_OutsidePosition);
// Drag node1 and node2 away from the stack
helpers.DragTo(start, outsideStackNode);
Assert.AreEqual(1, stack.childCount);
Assert.IsTrue(stack.Contains(m_Node3));
}
public void StackNodeDoesNoContainRemovedElements()
{
// Create a stack
StackNode stack = CreateStackNode(k_DefaultX, k_DefaultY);
stack.AddElement(m_Node1);
stack.AddElement(m_Node2);
// Verify that a node is properly removed from its containing stack
stack.RemoveElement(m_Node1);
Assert.AreEqual(1, stack.childCount);
Assert.IsFalse(stack.Contains(m_Node1));
Assert.IsNull(m_Node1.parent);
stack.RemoveElement(m_Node2);
Assert.AreEqual(0, stack.childCount);
Assert.IsFalse(stack.Contains(m_Node2));
Assert.IsNull(m_Node2.parent);
}
