From 3fd13805e8b302333c32892ab89c6de5f9df250f Mon Sep 17 00:00:00 2001
From: Mark Tolmacs <mark@lazycat.hu>
Date: Thu, 3 Apr 2025 16:32:36 +0200
Subject: [PATCH] Add alt-drag bound arrow test

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>
---
 packages/element/tests/duplicate.test.tsx | 32 ++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/packages/element/tests/duplicate.test.tsx b/packages/element/tests/duplicate.test.tsx
index d3b5cee96..7492bcc58 100644
--- a/packages/element/tests/duplicate.test.tsx
+++ b/packages/element/tests/duplicate.test.tsx
@@ -14,7 +14,7 @@ import { actionDuplicateSelection } from "@excalidraw/excalidraw/actions";
 
 import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 
-import { Keyboard, Pointer } from "@excalidraw/excalidraw/tests/helpers/ui";
+import { UI, Keyboard, Pointer } from "@excalidraw/excalidraw/tests/helpers/ui";
 
 import {
   act,
@@ -699,4 +699,34 @@ describe("duplication z-order", () => {
       { id: text.id, containerId: arrow.id, selected: true },
     ]);
   });
+
+  it("reverse-duplicating bindable element with bound arrow should keep the arrow on the duplicate", () => {
+    const rect = UI.createElement("rectangle", {
+      x: 0,
+      y: 0,
+      width: 100,
+      height: 100,
+    });
+
+    const arrow = UI.createElement("arrow", {
+      x: -100,
+      y: 50,
+      width: 95,
+      height: 0,
+    });
+
+    expect(arrow.endBinding?.elementId).toBe(rect.id);
+
+    Keyboard.withModifierKeys({ alt: true }, () => {
+      mouse.down(5, 5);
+      mouse.up(15, 15);
+    });
+
+    expect(window.h.elements).toHaveLength(3);
+
+    const newRect = window.h.elements[0];
+
+    expect(arrow.endBinding?.elementId).toBe(newRect.id);
+    expect(newRect.boundElements?.[0]?.id).toBe(arrow.id);
+  });
 });