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fix(dock): improve drop mutation safety and tree cleanup

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Misaki
2026-03-28 14:46:58 +09:00
parent c6a71e599b
commit 4aeaecfe81
3 changed files with 146 additions and 114 deletions
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42
src/Test/Ghost.UnitTest/DockingModelTest.cs
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@@ -160,18 +160,42 @@ public class DockingModelTest
}
[TestMethod]
public void TestPanel_SetInvalidSelectedItem_ResetsSelection()
public void TestInsertChild_Reorder()
{
var panel = new DockPanelNode();
var item1 = new object();
var item2 = new object();
var group = new DockGroupNode();
var child1 = new DockPanelNode();
var child2 = new DockPanelNode();
var child3 = new DockPanelNode();
panel.Items.Add(item1);
panel.SelectedItem = item1;
group.AddChild(child1);
group.AddChild(child2);
group.AddChild(child3);
panel.SelectedItem = item2; // Not in collection
// Move child1 to end
group.InsertChild(3, child1);
Assert.AreEqual(child2, group.Children[0]);
Assert.AreEqual(child3, group.Children[1]);
Assert.AreEqual(child1, group.Children[2]);
Assert.IsNull(panel.SelectedItem);
Assert.AreEqual(-1, panel.SelectedIndex);
// Move child3 to start
group.InsertChild(0, child3);
Assert.AreEqual(child3, group.Children[0]);
Assert.AreEqual(child2, group.Children[1]);
Assert.AreEqual(child1, group.Children[2]);
}
[TestMethod]
public void TestInsertChild_SameIndex_NoOp()
{
var group = new DockGroupNode();
var child1 = new DockPanelNode();
var child2 = new DockPanelNode();
group.AddChild(child1);
group.AddChild(child2);
group.InsertChild(0, child1);
Assert.AreEqual(child1, group.Children[0]);
Assert.AreEqual(child2, group.Children[1]);
}
}