public IEnumerator DragAddSelectionToStackNode()
{
// Create a stack
StackNode stack = CreateStackNode(k_DefaultX, k_DefaultY);
// Allow two frames to compute the layout of the stack and nodes
yield return(null);
yield return(null);
// Select node1
m_Node1.Select(graphView, false);
Vector2 start = m_Node1.worldBound.center;
Vector2 centerOfStack = stack.LocalToWorld(stack.GetRect().center); // Center of the stack
// Drag node1 onto the stack
helpers.DragTo(start, centerOfStack);
// Verify that node1 has been added to stack
Assert.AreEqual(1, stack.childCount);
Assert.AreEqual(stack, m_Node1.parent);
// Allow one frame to compute the layout of the stack
yield return(null);
// Select node2
m_Node2.Select(graphView, false);
start = m_Node2.worldBound.center;
Vector2 centerOfNode1 = m_Node1.worldBound.center; // Center of Node1
// Drag node2 onto the stack at the position of node1
helpers.DragTo(start, centerOfNode1);
// Verify that node2 has been added to the stack at the previous index of node1
Assert.AreEqual(2, stack.childCount);
Assert.AreEqual(stack, m_Node2.parent);
Assert.AreEqual(0, stack.IndexOf(m_Node2));
}
[UnityTest] // Case 1015984
public IEnumerator DragRemoveAndThenAddSelectionBackToStackNode()
{
// Creates a stack and add node1
StackNode stack = CreateStackNode(k_DefaultX, k_DefaultY);
stack.AddElement(m_Node1);
// Allow two frames to compute the layout of the stack and nodes
yield return(null);
yield return(null);
// Select node1
m_Node1.Select(graphView, false);
Vector2 start = m_Node1.worldBound.center;
Vector2 outsideStackNode = stack.LocalToWorld(k_OutsidePosition);
// Drag node1 away from the stack
helpers.DragTo(start, outsideStackNode);
Assert.AreEqual(0, stack.childCount);
// Allow one frame to compute the layout of the stack and node1
yield return(null);
start = m_Node1.worldBound.center;
Vector2 centerOfStack = stack.LocalToWorld(stack.GetRect().center); // Center of the stack
// Drag node1 onto the stack
helpers.DragTo(start, centerOfStack);
// Verify that node1 has been added back to the stack
Assert.AreEqual(1, stack.childCount);
Assert.AreEqual(stack, m_Node1.parent);
}
