From 610e5328686aac560a3298e1c35ee758a7c10f00 Mon Sep 17 00:00:00 2001
From: Kevin Jahns <kevin.jahns@pm.me>
Date: Sat, 27 Nov 2021 11:37:11 +0100
Subject: [PATCH] add test case for nested Y.Text as embeds.

---
 tests/undo-redo.tests.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/undo-redo.tests.js b/tests/undo-redo.tests.js
index 249a3505..991225ca 100644
--- a/tests/undo-redo.tests.js
+++ b/tests/undo-redo.tests.js
@@ -248,6 +248,26 @@ export const testTypeScope = tc => {
   t.assert(text1.toString() === '')
 }
 
+/**
+ * @param {t.TestCase} tc
+ */
+export const testUndoInEmbed = tc => {
+  const { text0 } = init(tc, { users: 3 })
+  const undoManager = new Y.UndoManager(text0)
+  const nestedText = new Y.Text('initial text')
+  undoManager.stopCapturing()
+  text0.insertEmbed(0, nestedText, { bold: true })
+  t.assert(nestedText.toString() === 'initial text')
+  undoManager.stopCapturing()
+  nestedText.delete(0, nestedText.length)
+  nestedText.insert(0, 'other text')
+  t.assert(nestedText.toString() === 'other text')
+  undoManager.undo()
+  t.assert(nestedText.toString() === 'initial text')
+  undoManager.undo()
+  t.assert(text0.length === 0)
+}
+
 /**
  * @param {t.TestCase} tc
  */