From bf338d8040011b63caab08d7a901058a13335b25 Mon Sep 17 00:00:00 2001
From: Kevin Jahns <kevin.jahns@protonmail.com>
Date: Thu, 2 Mar 2023 19:08:01 +0100
Subject: [PATCH] fix attribute update issue - fixes #503

---
 src/types/YText.js    |   10 +-
 tests/y-text.tests.js | 1235 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1242 insertions(+), 3 deletions(-)

diff --git a/src/types/YText.js b/src/types/YText.js
index d1cdf781..83b02aa6 100644
--- a/src/types/YText.js
+++ b/src/types/YText.js
@@ -367,15 +367,16 @@ const cleanupFormattingGap = (transaction, start, curr, startAttributes, currAtt
   const endAttributes = map.copy(currAttributes)
   while (end && (!end.countable || end.deleted)) {
     if (!end.deleted && end.content.constructor === ContentFormat) {
+      // @todo should set endAttributes[end.key] = end and then compare identities instead of values
       updateCurrentAttributes(endAttributes, /** @type {ContentFormat} */ (end.content))
     }
     end = end.right
   }
   let cleanups = 0
-  let reachedEndOfCurr = false
+  let reachedCurr = false
   while (start !== end) {
     if (curr === start) {
-      reachedEndOfCurr = true
+      reachedCurr = true
     }
     if (!start.deleted) {
       const content = start.content
@@ -387,7 +388,7 @@ const cleanupFormattingGap = (transaction, start, curr, startAttributes, currAtt
             // Either this format is overwritten or it is not necessary because the attribute already existed.
             start.delete(transaction)
             cleanups++
-            if (!reachedEndOfCurr && (currAttributes.get(key) || null) === value && (startAttributes.get(key) || null) !== value) {
+            if (!reachedCurr && (currAttributes.get(key) || null) === value && startAttrValue !== value) {
               if (startAttrValue === null) {
                 currAttributes.delete(key)
               } else {
@@ -395,6 +396,9 @@ const cleanupFormattingGap = (transaction, start, curr, startAttributes, currAtt
               }
             }
           }
+          if (!reachedCurr && !start.deleted) {
+            updateCurrentAttributes(currAttributes, /** @type {ContentFormat} */ (content))
+          }
           break
         }
       }
diff --git a/tests/y-text.tests.js b/tests/y-text.tests.js
index 48622673..cd44142f 100644
--- a/tests/y-text.tests.js
+++ b/tests/y-text.tests.js
@@ -412,6 +412,1241 @@ export const testDeltaBug = _tc => {
   t.compare(result, expectedResult)
 }
 
+/**
+ * https://github.com/yjs/yjs/issues/503
+ * @param {t.TestCase} _tc
+ */
+export const testDeltaBug2 = _tc => {
+  const initialContent = [
+    { insert: "Thomas' section" },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-61ae80ac-a469-4eae-bac9-3b6a2c380118' }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-d265d93f-1cc7-40ee-bb58-8270fca2619f' }
+    },
+    { insert: '123' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-592a7bee-76a3-4e28-9c25-7a84344f8813',
+        list: { list: 'toggled', 'toggle-id': 'list-66xfft' }
+      }
+    },
+    { insert: '456' },
+    {
+      insert: '\n',
+      attributes: {
+        indent: 1,
+        'block-id': 'block-3ee2bd70-b97f-45b2-9115-f1e8910235b1',
+        list: { list: 'toggled', 'toggle-id': 'list-6vh0t0' }
+      }
+    },
+    { insert: '789' },
+    {
+      insert: '\n',
+      attributes: {
+        indent: 1,
+        'block-id': 'block-78150cf3-9bb5-4dea-a6f5-0ce1d2a98b9c',
+        list: { list: 'toggled', 'toggle-id': 'list-7jr0l2' }
+      }
+    },
+    { insert: '901' },
+    {
+      insert: '\n',
+      attributes: {
+        indent: 1,
+        'block-id': 'block-13c6416f-f522-41d5-9fd4-ce4eb1cde5ba',
+        list: { list: 'toggled', 'toggle-id': 'list-7uk8qu' }
+      }
+    },
+    {
+      insert: {
+        slash_command: {
+          id: 'doc_94zq-2436',
+          sessionId: 'nkwc70p2j',
+          replace: '/'
+        }
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-8a1d2bb6-23c2-4bcf-af3c-3919ffea1697' }
+    },
+    { insert: '\n\n', attributes: { 'table-col': { width: '150' } } },
+    {
+      insert: '\n',
+      attributes: { 'table-col': { width: '150' } }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-84ec3ea4-da6a-4e03-b430-0e5f432936a9',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-blmd4s',
+          cell: 'cell-m0u5za'
+        },
+        row: 'row-blmd4s',
+        cell: 'cell-m0u5za',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-83144ca8-aace-401e-8aa5-c05928a8ccf0',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-blmd4s',
+          cell: 'cell-1v8s8t'
+        },
+        row: 'row-blmd4s',
+        cell: 'cell-1v8s8t',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-9a493387-d27f-4b58-b2f7-731dfafda32a',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-blmd4s',
+          cell: 'cell-126947'
+        },
+        row: 'row-blmd4s',
+        cell: 'cell-126947',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-3484f86e-ae42-440f-8de6-857f0d8011ea',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-hmmljo',
+          cell: 'cell-wvutl9'
+        },
+        row: 'row-hmmljo',
+        cell: 'cell-wvutl9',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-d4e0b741-9dea-47a5-85e1-4ded0efbc89d',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-hmmljo',
+          cell: 'cell-nkablr'
+        },
+        row: 'row-hmmljo',
+        cell: 'cell-nkablr',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-352f0d5a-d1b9-422f-b136-4bacefd00b1a',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-hmmljo',
+          cell: 'cell-n8xtd0'
+        },
+        row: 'row-hmmljo',
+        cell: 'cell-n8xtd0',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-95823e57-f29c-44cf-a69d-2b4494b7144b',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-ev4xwq',
+          cell: 'cell-ua9bvu'
+        },
+        row: 'row-ev4xwq',
+        cell: 'cell-ua9bvu',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-cde5c027-15d3-4780-9e76-1e1a9d97a8e8',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-ev4xwq',
+          cell: 'cell-7bwuvk'
+        },
+        row: 'row-ev4xwq',
+        cell: 'cell-7bwuvk',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-11a23ed4-b04d-4e45-8065-8120889cd4a4',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-ev4xwq',
+          cell: 'cell-aouka5'
+        },
+        row: 'row-ev4xwq',
+        cell: 'cell-aouka5',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-15b4483c-da98-4ded-91d3-c3d6ebc82582' }
+    },
+    { insert: { divider: true } },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-68552c8e-b57b-4f4a-9f36-6cc1ef6b3461' }
+    },
+    { insert: 'jklasjdf' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-c8b2df7d-8ec5-4dd4-81f1-8d8efc40b1b4',
+        list: { list: 'toggled', 'toggle-id': 'list-9ss39s' }
+      }
+    },
+    { insert: 'asdf' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-4f252ceb-14da-49ae-8cbd-69a701d18e2a',
+        list: { list: 'toggled', 'toggle-id': 'list-uvo013' }
+      }
+    },
+    { insert: 'adg' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-ccb9b72e-b94d-45a0-aae4-9b0a1961c533',
+        list: { list: 'toggled', 'toggle-id': 'list-k53iwe' }
+      }
+    },
+    { insert: 'asdfasdfasdf' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-ccb9b72e-b94d-45a0-aae4-9b0a1961c533',
+        list: { list: 'none' },
+        indent: 1
+      }
+    },
+    { insert: 'asdf' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-f406f76d-f338-4261-abe7-5c9131f7f1ad',
+        list: { list: 'toggled', 'toggle-id': 'list-en86ur' }
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-be18141c-9b6b-434e-8fd0-2c214437d560' }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-36922db3-4af5-48a1-9ea4-0788b3b5d7cf' }
+    },
+    { insert: { table_content: true } },
+    { insert: ' ' },
+    {
+      insert: {
+        slash_command: {
+          id: 'doc_94zq-2436',
+          sessionId: 'hiyrt6fny',
+          replace: '/'
+        }
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-9d6566a1-be55-4e20-999a-b990bc15e143' }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-4b545085-114d-4d07-844c-789710ec3aab',
+        layout:
+        '12d887e1-d1a2-4814-a1a3-0c904e950b46_1185cd29-ef1b-45d5-8fda-51a70b704e64',
+        'layout-width': '0.25'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+
+        'block-id': 'block-4d3f2321-33d1-470e-9b7c-d5a683570148',
+        layout:
+        '12d887e1-d1a2-4814-a1a3-0c904e950b46_75523ea3-c67f-4f5f-a85f-ac7c8fc0a992',
+        'layout-width': '0.5'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-4c7ae1e6-758e-470f-8d7c-ae0325e4ee8a',
+        layout:
+        '12d887e1-d1a2-4814-a1a3-0c904e950b46_54c740ef-fd7b-48c6-85aa-c14e1bfc9297',
+        'layout-width': '0.25'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-2d6ff0f4-ff00-42b7-a8e2-b816463d8fb5' }
+    },
+    { insert: { divider: true } },
+    {
+      insert: '\n',
+      attributes: { 'table-col': { width: '150' } }
+    },
+    { insert: '\n', attributes: { 'table-col': { width: '154' } } },
+    {
+      insert: '\n',
+      attributes: { 'table-col': { width: '150' } }
+    },
+
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-38545d56-224b-464c-b779-51fcec24dbbf',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-q0qfck',
+          cell: 'cell-hmapv4'
+        },
+        row: 'row-q0qfck',
+        cell: 'cell-hmapv4',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-d413a094-5f52-4fd4-a4aa-00774f6fdb44',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-q0qfck',
+          cell: 'cell-c0czb2'
+        },
+        row: 'row-q0qfck',
+        cell: 'cell-c0czb2',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-ff855cbc-8871-4e0a-9ba7-de0c1c2aa585',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-q0qfck',
+          cell: 'cell-hcpqmm'
+        },
+        row: 'row-q0qfck',
+        cell: 'cell-hcpqmm',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-4841e6ee-fef8-4473-bf04-f5ba62db17f0',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-etopyl',
+          cell: 'cell-0io73v'
+        },
+        row: 'row-etopyl',
+        cell: 'cell-0io73v',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-adeec631-d4fe-4f38-9d5e-e67ba068bd24',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-etopyl',
+          cell: 'cell-gt2waa'
+        },
+        row: 'row-etopyl',
+        cell: 'cell-gt2waa',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-d38a7308-c858-4ce0-b1f3-0f9092384961',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-etopyl',
+          cell: 'cell-os9ksy'
+        },
+        row: 'row-etopyl',
+        cell: 'cell-os9ksy',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-a9df6568-1838-40d1-9d16-3c073b6ce169',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-hbx9ri'
+        },
+        row: 'row-0jwjg3',
+        cell: 'cell-hbx9ri',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-e26a0cf2-fe62-44a5-a4ca-8678a56d62f1',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-yg5m2w'
+        },
+        row: 'row-0jwjg3',
+        cell: 'cell-yg5m2w',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    { insert: 'a' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-bfbc5ac2-7417-44b9-9aa5-8e36e4095627',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-1azhl2',
+          list: 'ordered'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-0jwjg3',
+        cell: 'cell-1azhl2'
+      }
+    },
+    { insert: 'b' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-f011c089-6389-47c0-8396-7477a29aa56f',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-1azhl2',
+          list: 'ordered'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-0jwjg3',
+        cell: 'cell-1azhl2'
+      }
+    },
+    { insert: 'c' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-4497788d-1e02-4fd5-a80a-48b61a6185cb',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-1azhl2',
+          list: 'ordered'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-0jwjg3',
+        cell: 'cell-1azhl2'
+      }
+    },
+    { insert: 'd' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-5d73a2c7-f98b-47c7-a3f5-0d8527962b02',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-1azhl2',
+          list: 'ordered'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-0jwjg3',
+        cell: 'cell-1azhl2'
+      }
+    },
+    { insert: 'e' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-bfda76ee-ffdd-45db-a22e-a6707e11cf68',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-1azhl2',
+          list: 'ordered'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-0jwjg3',
+        cell: 'cell-1azhl2'
+      }
+    },
+    { insert: 'd' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-35242e64-a69d-4cdb-bd85-2a93766bfab4',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-1azhl2',
+          list: 'ordered'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-0jwjg3',
+        cell: 'cell-1azhl2'
+      }
+    },
+    { insert: 'f' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-8baa22c8-491b-4f1b-9502-44179d5ae744',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-0jwjg3',
+          cell: 'cell-1azhl2',
+          list: 'ordered'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-0jwjg3',
+        cell: 'cell-1azhl2'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-7fa64af0-6974-4205-8cee-529f8bd46852' }
+    },
+    { insert: { divider: true } },
+    { insert: "Brandon's Section" },
+    {
+      insert: '\n',
+      attributes: {
+        header: 2,
+        'block-id': 'block-cf49462c-2370-48ff-969d-576cb32c39a1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-30ef8361-0dd6-4eee-b4eb-c9012d0e9070' }
+    },
+    {
+      insert: {
+        slash_command: {
+          id: 'doc_94zq-2436',
+          sessionId: 'x9x08o916',
+          replace: '/'
+        }
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-166ed856-cf8c-486a-9365-f499b21d91b3' }
+    },
+    { insert: { divider: true } },
+    {
+      insert: '\n',
+      attributes: {
+        row: 'row-kssn15',
+        rowspan: '1',
+        colspan: '1',
+        'block-id': 'block-e8079594-4559-4259-98bb-da5280e2a692',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-kssn15',
+          cell: 'cell-qxbksf'
+        },
+        cell: 'cell-qxbksf'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-70132663-14cc-4701-b5c5-eb99e875e2bd',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-kssn15',
+          cell: 'cell-lsohbx'
+        },
+        cell: 'cell-lsohbx',
+        row: 'row-kssn15',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-47a3899c-e3c5-4a7a-a8c4-46e0ae73a4fa',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-kssn15',
+          cell: 'cell-hner9k'
+        },
+        cell: 'cell-hner9k',
+        row: 'row-kssn15',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-0f9e650a-7841-412e-b4f2-5571b6d352c2',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-juxwc0',
+          cell: 'cell-ei4yqp'
+        },
+        cell: 'cell-ei4yqp',
+        row: 'row-juxwc0',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-53a158a9-8c82-4c82-9d4e-f5298257ca43',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-juxwc0',
+          cell: 'cell-25pf5x'
+        },
+        cell: 'cell-25pf5x',
+        row: 'row-juxwc0',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-da8ba35e-ce6e-4518-8605-c51d781eb07a',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-juxwc0',
+          cell: 'cell-m8reor'
+        },
+        cell: 'cell-m8reor',
+        row: 'row-juxwc0',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-2dce37c7-2978-4127-bed0-9549781babcb',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-ot4wy5',
+          cell: 'cell-dinh0i'
+        },
+        cell: 'cell-dinh0i',
+        row: 'row-ot4wy5',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-7b593f8c-4ea3-44b4-8ad9-4a0abffe759b',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-ot4wy5',
+          cell: 'cell-d115b2'
+        },
+        cell: 'cell-d115b2',
+        row: 'row-ot4wy5',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-272c28e6-2bde-4477-9d99-ce35b3045895',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-ot4wy5',
+          cell: 'cell-fuapvo'
+        },
+        cell: 'cell-fuapvo',
+        row: 'row-ot4wy5',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-fbf23cab-1ce9-4ede-9953-f2f8250004cf' }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-c3fbb8c9-495c-40b0-b0dd-f6e33dd64b1b' }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-3417ad09-92a3-4a43-b5db-6dbcb0f16db4' }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-b9eacdce-4ba3-4e66-8b69-3eace5656057' }
+    },
+    { insert: 'Dan Gornstein' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-d7c6ae0d-a17c-433e-85fd-5efc52b587fb',
+        header: 1
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-814521bd-0e14-4fbf-b332-799c6452a624' }
+    },
+    { insert: 'aaa' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-6aaf4dcf-dc21-45c6-b723-afb25fe0f498',
+        list: { list: 'toggled', 'toggle-id': 'list-idl93b' }
+      }
+    },
+    { insert: 'bb' },
+    {
+      insert: '\n',
+      attributes: {
+        indent: 1,
+        'block-id': 'block-3dd75392-fa50-4bfb-ba6b-3b7d6bd3f1a1',
+        list: { list: 'toggled', 'toggle-id': 'list-mrq7j2' }
+      }
+    },
+    { insert: 'ccc' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-2528578b-ecda-4f74-9fd7-8741d72dc8b3',
+        indent: 2,
+        list: { list: 'toggled', 'toggle-id': 'list-liu7dl' }
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-18bf68c3-9ef3-4874-929c-9b6bb1a00325' }
+    },
+    {
+      insert: '\n',
+      attributes: { 'table-col': { width: '150' } }
+    },
+    { insert: '\n', attributes: { 'table-col': { width: '150' } } },
+    {
+      insert: '\n',
+      attributes: { 'table-col': { width: '150' } }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-d44e74b4-b37f-48e0-b319-6327a6295a57',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-si1nah',
+          cell: 'cell-cpybie'
+        },
+        row: 'row-si1nah',
+        cell: 'cell-cpybie',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    { insert: 'aaa' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-3e545ee9-0c9a-42d7-a4d0-833edb8087f3',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-si1nah',
+          cell: 'cell-cpybie',
+          list: 'toggled',
+          'toggle-id': 'list-kjl2ik'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-si1nah',
+        cell: 'cell-cpybie'
+      }
+    },
+    { insert: 'bb' },
+    {
+      insert: '\n',
+      attributes: {
+        indent: 1,
+        'block-id': 'block-5f1225ad-370f-46ab-8f1e-18b277b5095f',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-si1nah',
+          cell: 'cell-cpybie',
+          list: 'toggled',
+          'toggle-id': 'list-eei1x5'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-si1nah',
+        cell: 'cell-cpybie'
+      }
+    },
+    { insert: 'ccc' },
+    {
+      insert: '\n',
+      attributes: {
+        indent: 2,
+        'block-id': 'block-a77fdc11-ad24-431b-9ca2-09e32db94ac2',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-si1nah',
+          cell: 'cell-cpybie',
+          list: 'toggled',
+          'toggle-id': 'list-30us3c'
+        },
+        rowspan: '1',
+        colspan: '1',
+        row: 'row-si1nah',
+        cell: 'cell-cpybie'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-d44e74b4-b37f-48e0-b319-6327a6295a57',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-si1nah',
+          cell: 'cell-cpybie'
+        },
+        row: 'row-si1nah',
+        cell: 'cell-cpybie',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-2c274c8a-757d-4892-8db8-1a7999f7ab51',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-si1nah',
+          cell: 'cell-al1z64'
+        },
+        row: 'row-si1nah',
+        cell: 'cell-al1z64',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-85931afe-1879-471c-bb4b-89e7bd517fe9',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-si1nah',
+          cell: 'cell-q186pb'
+        },
+        row: 'row-si1nah',
+        cell: 'cell-q186pb',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    { insert: 'asdfasdfasdf' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-6e0522e8-c1eb-4c07-98df-2b07c533a139',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-7x2d1o',
+          cell: 'cell-6eid2t'
+        },
+        row: 'row-7x2d1o',
+        cell: 'cell-6eid2t',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-4b3d0bd0-9175-45e9-955c-e8164f4b5376',
+        row: 'row-7x2d1o',
+        cell: 'cell-m1alad',
+        rowspan: '1',
+        colspan: '1',
+        list: {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-7x2d1o',
+          cell: 'cell-m1alad',
+          list: 'ordered'
+        }
+      }
+    },
+    { insert: 'asdfasdfasdf' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-08610089-cb05-4366-bb1e-a0787d5b11bf',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-7x2d1o',
+          cell: 'cell-dm1l2p'
+        },
+        row: 'row-7x2d1o',
+        cell: 'cell-dm1l2p',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-c22b5125-8df3-432f-bd55-5ff456e41b4e',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-o0ujua',
+          cell: 'cell-82g0ca'
+        },
+        row: 'row-o0ujua',
+        cell: 'cell-82g0ca',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-7c6320e4-acaf-4ab4-8355-c9b00408c9c1',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-o0ujua',
+          cell: 'cell-wv6ozp'
+        },
+        row: 'row-o0ujua',
+        cell: 'cell-wv6ozp',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-d1bb7bed-e69e-4807-8d20-2d28fef8d08f',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-o0ujua',
+          cell: 'cell-ldt53x'
+        },
+        row: 'row-o0ujua',
+        cell: 'cell-ldt53x',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-28f28cb8-51a2-4156-acf9-2380e1349745' }
+    },
+    { insert: { divider: true } },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-a1193252-c0c8-47fe-b9f6-32c8b01a1619' }
+    },
+    { insert: '\n', attributes: { 'table-col': { width: '150' } } },
+    {
+      insert: '\n\n',
+      attributes: { 'table-col': { width: '150' } }
+    },
+    { insert: '/This is a test.' },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-14188df0-a63f-4317-9a6d-91b96a7ac9fe',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-5ixdvv',
+          cell: 'cell-9tgyed'
+        },
+        row: 'row-5ixdvv',
+        cell: 'cell-9tgyed',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-7e5ba2af-9903-457d-adf4-2a79be81d823',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-5ixdvv',
+          cell: 'cell-xc56e9'
+        },
+        row: 'row-5ixdvv',
+        cell: 'cell-xc56e9',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-eb6cad93-caf7-4848-8adf-415255139268',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-5ixdvv',
+          cell: 'cell-xrze3u'
+        },
+        row: 'row-5ixdvv',
+        cell: 'cell-xrze3u',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-5bb547a2-6f71-4624-80c7-d0e1318c81a2',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-xbzv98',
+          cell: 'cell-lie0ng'
+        },
+        row: 'row-xbzv98',
+        cell: 'cell-lie0ng',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-b506de0d-efb6-4bd7-ba8e-2186cc57903e',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-xbzv98',
+          cell: 'cell-s9sow1'
+        },
+        row: 'row-xbzv98',
+        cell: 'cell-s9sow1',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-42d2ad20-5521-40e3-a88d-fe6906176e61',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-xbzv98',
+          cell: 'cell-nodtcj'
+        },
+        row: 'row-xbzv98',
+        cell: 'cell-nodtcj',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-7d3e4216-3f68-4dd6-bc77-4a9fad4ba008',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-5bqfil',
+          cell: 'cell-c8c0f3'
+        },
+        row: 'row-5bqfil',
+        cell: 'cell-c8c0f3',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-6671f221-551e-47fb-9b7d-9043b6b12cdc',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-5bqfil',
+          cell: 'cell-jvxxif'
+        },
+        row: 'row-5bqfil',
+        cell: 'cell-jvxxif',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: {
+        'block-id': 'block-51e3161b-0437-4fe3-ac4f-129a93a93fc3',
+        'table-cell-line': {
+          rowspan: '1',
+          colspan: '1',
+          row: 'row-5bqfil',
+          cell: 'cell-rmjpze'
+        },
+        row: 'row-5bqfil',
+        cell: 'cell-rmjpze',
+        rowspan: '1',
+        colspan: '1'
+      }
+    },
+    {
+      insert: '\n',
+      attributes: { 'block-id': 'block-21099df0-afb2-4cd3-834d-bb37800eb06a' }
+    }
+  ]
+  const ydoc = new Y.Doc()
+  const ytext = ydoc.getText('id')
+  ytext.applyDelta(initialContent)
+  const changeEvent = [
+    { retain: 90 },
+    { delete: 4 },
+    {
+      retain: 1,
+      attributes: {
+        layout: null,
+        'layout-width': null,
+        'block-id': 'block-9d6566a1-be55-4e20-999a-b990bc15e143'
+      }
+    }
+  ]
+  ytext.applyDelta(changeEvent)
+  const delta = ytext.toDelta()
+  t.compare(delta[41], {
+    insert: '\n',
+    attributes: {
+      'block-id': 'block-9d6566a1-be55-4e20-999a-b990bc15e143'
+    }
+  })
+}
+
 /**
  * In this test we are mainly interested in the cleanup behavior and whether the resulting delta makes sense.
  * It is fine if the resulting delta is not minimal. But applying the delta to a rich-text editor should result in a