From fd32a3c96f5a13f4b8dcac0de3998503faba5303 Mon Sep 17 00:00:00 2001
From: Jannik Stehle <j.stehle@opencloud.eu>
Date: Fri, 9 Oct 2026 10:59:49 +0200
Subject: [PATCH 1/6] refactor(web-pkg): register markdown tokenizers on a
 Marked instance

---
 .../web-pkg/src/editor/composables/strategies/markdown.ts  | 7 ++++---
 packages/web-pkg/src/editor/extensions/frontmatter.ts      | 4 ++--
 packages/web-pkg/src/editor/extensions/markdownLists.ts    | 4 ++--
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/packages/web-pkg/src/editor/composables/strategies/markdown.ts b/packages/web-pkg/src/editor/composables/strategies/markdown.ts
index 59e26d21d4d..ad3e2753a35 100644
--- a/packages/web-pkg/src/editor/composables/strategies/markdown.ts
+++ b/packages/web-pkg/src/editor/composables/strategies/markdown.ts
@@ -36,12 +36,13 @@ export const useStrategyMarkdown = (editorState: TextEditorState): ContentTypeSt
   // process wide singleton which grows with every editor opened and keeps each
   // manager it ever saw alive. Holding our own instance bounds both to the
   // lifetime of this strategy.
+  const instance = new Marked()
+  registerFrontmatterTokenizer(instance)
+  registerMarkdownListTokenizer(instance)
   // Cast because tiptap types the option as the default export, which carries a
   // `getDefaults` helper a plain instance lacks. The manager never calls it: it
   // only touches `use`, `setOptions`, `Lexer`, `lexer` and `defaults`.
-  const marked = new Marked() as unknown as typeof markedDefault
-  registerFrontmatterTokenizer(marked)
-  registerMarkdownListTokenizer(marked)
+  const marked = instance as unknown as typeof markedDefault
 
   const editorContentType = () => {
     return 'markdown'
diff --git a/packages/web-pkg/src/editor/extensions/frontmatter.ts b/packages/web-pkg/src/editor/extensions/frontmatter.ts
index 4e9f9224eb2..52b618647a2 100644
--- a/packages/web-pkg/src/editor/extensions/frontmatter.ts
+++ b/packages/web-pkg/src/editor/extensions/frontmatter.ts
@@ -1,6 +1,6 @@
 import { commands as coreCommands, Node, mergeAttributes } from '@tiptap/core'
 import type { CommandProps, JSONContent, MarkdownToken } from '@tiptap/core'
-import type { marked } from 'marked'
+import type { Marked } from 'marked'
 import { TextSelection } from '@tiptap/pm/state'
 import { VueNodeViewRenderer } from '@tiptap/vue-3'
 import FrontmatterComponent from '../components/FrontmatterComponent.vue'
@@ -45,7 +45,7 @@ const frontmatterPattern = /^---[ \t]*\r?\n([\s\S]*?)(?:\r?\n)?---[ \t]*(?:\r?\n
  * given and never removes them, so the singleton would grow for as long as the
  * tab is open and hold on to every manager it ever saw.
  */
-export function registerFrontmatterTokenizer(instance: typeof marked): void {
+export function registerFrontmatterTokenizer(instance: Marked): void {
   instance.use({
     extensions: [
       {
diff --git a/packages/web-pkg/src/editor/extensions/markdownLists.ts b/packages/web-pkg/src/editor/extensions/markdownLists.ts
index e6d94e5dc90..e68a8b6c7bf 100644
--- a/packages/web-pkg/src/editor/extensions/markdownLists.ts
+++ b/packages/web-pkg/src/editor/extensions/markdownLists.ts
@@ -1,7 +1,7 @@
 import type { JSONContent, MarkdownToken } from '@tiptap/core'
 import { ListItem, OrderedList } from '@tiptap/extension-list'
 import { Tokenizer } from 'marked'
-import type { marked } from 'marked'
+import type { Marked } from 'marked'
 
 function isEmptySubItemUnderline(token?: MarkdownToken): boolean {
   // `- text` followed by `  -` lexes as a setext heading, not as an empty sub item
@@ -118,7 +118,7 @@ const emptyFirstItemPattern = /^( {0,3}(?:[-+*]|\d{1,9}[.)]))[ \t]+(?=\n|$)/
  *
  * Takes the instance as an argument for the same reason as `registerFrontmatterTokenizer`.
  */
-export function registerMarkdownListTokenizer(instance: typeof marked): void {
+export function registerMarkdownListTokenizer(instance: Marked): void {
   instance.use({
     tokenizer: {
       list(src) {

From c3103378cc4c8034a981a7a0c6bc2e8ebdbe692c Mon Sep 17 00:00:00 2001
From: Jannik Stehle <j.stehle@opencloud.eu>
Date: Fri, 9 Oct 2026 10:27:15 +0200
Subject: [PATCH 2/6] test(web-pkg): add fixture based markdown round trip
 tests

---
 .prettierignore                               |   3 +
 .../strategies/fixtures/markdown/basics.md    |  45 ++++++
 .../fixtures/markdown/blockquote-alert.md     |   2 +
 .../blockquote-escaped-alert-marker.md        |   3 +
 .../code-block-fence-indented-1-space.md      |   3 +
 .../code-block-fence-indented-2-spaces.md     |   4 +
 .../code-block-indented-fence-after-list.md   |   4 +
 .../markdown/list-asterisk-markers.md         |   2 +
 .../markdown/list-blockquote-in-item.md       |   2 +
 .../list-empty-first-ordered-sub-item.md      |   3 +
 .../markdown/list-empty-item-in-blockquote.md |   1 +
 .../markdown/list-empty-item-with-sub-list.md |   2 +
 .../fixtures/markdown/list-empty-item.md      |   1 +
 .../fixtures/markdown/list-empty-items.md     |   6 +
 .../markdown/list-empty-last-sub-item.md      |   3 +
 .../list-empty-sub-item-with-children.md      |   8 ++
 .../fixtures/markdown/list-empty-sub-items.md |   9 ++
 .../markdown/list-escaped-lines-in-item.md    |   3 +
 .../list-heading-below-empty-marker.md        |   3 +
 .../fixtures/markdown/list-heading-in-item.md |   2 +
 .../markdown/list-heading-in-letter-item.md   |   3 +
 .../markdown/list-heading-in-ordered-item.md  |   2 +
 .../markdown/list-image-after-text.md         |   3 +
 .../fixtures/markdown/list-image-item.md      |   6 +
 .../markdown/list-letters-empty-item.md       |   3 +
 .../fixtures/markdown/list-literal-nbsp.md    |   5 +
 .../markdown/list-lowercase-letters.md        |   2 +
 .../markdown/list-lowercase-roman-numerals.md |   2 +
 .../list-ordered-content-indented-2-spaces.md |   3 +
 .../list-ordered-continuation-line.md         |   2 +
 .../list-ordered-item-escaped-line.md         |   2 +
 .../list-ordered-right-aligned-nested.md      |  12 ++
 .../markdown/list-ordered-right-aligned.md    |  10 ++
 .../markdown/list-ordered-start-number.md     |   2 +
 .../markdown/list-text-after-code-block.md    |   4 +
 .../markdown/list-text-after-heading.md       |   2 +
 .../markdown/list-uppercase-letters.md        |   2 +
 .../markdown/list-uppercase-roman-numerals.md |   2 +
 .../paragraph-escaped-block-syntax.md         |  20 +++
 .../markdown/paragraph-indented-lines.md      |   7 +
 .../markdown/paragraph-soft-line-breaks.md    |   4 +
 .../paragraph-text-like-block-syntax.md       |   7 +
 .../markdown/table-block-syntax-in-cells.md   |   3 +
 .../task-list-code-block-in-bullet-item.md    |   6 +
 .../task-list-code-block-in-ordered-item.md   |   6 +
 ...ask-list-code-block-nested-tab-indented.md |   6 +
 ...ode-block-tab-indented-after-blank-line.md |   8 ++
 .../task-list-code-block-tab-indented.md      |   4 +
 ...block-tilde-with-tabs-after-nested-item.md |   6 +
 ...t-code-block-with-tabs-after-blank-line.md |   6 +
 ...-code-block-with-tabs-after-nested-item.md |   5 +
 ...-list-code-block-with-tabs-three-levels.md |   7 +
 .../task-list-code-block-with-tabs.md         |   5 +
 .../task-list-code-block-with-task-syntax.md  |   7 +
 ...t-indented-code-block-after-nested-item.md |   4 +
 ...list-indented-code-block-tab-and-spaces.md |   3 +
 ...task-list-indented-code-block-with-tabs.md |   3 +
 .../task-list-nested-item-tab-indented.md     |   2 +
 .../strategies/markdownFixtures.spec.ts       | 132 ++++++++++++++++++
 59 files changed, 427 insertions(+)
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/basics.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/blockquote-alert.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/blockquote-escaped-alert-marker.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-1-space.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-2-spaces.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-indented-fence-after-list.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-asterisk-markers.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-blockquote-in-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-ordered-sub-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-in-blockquote.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-with-sub-list.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-items.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-sub-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-item-with-children.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-items.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-escaped-lines-in-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-below-empty-marker.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-letter-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-ordered-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-image-after-text.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-image-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-letters-empty-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-literal-nbsp.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-lowercase-letters.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-lowercase-roman-numerals.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-content-indented-2-spaces.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-continuation-line.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned-nested.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-start-number.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-code-block.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-heading.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-uppercase-letters.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-uppercase-roman-numerals.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-escaped-block-syntax.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-indented-lines.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-soft-line-breaks.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-text-like-block-syntax.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/table-block-syntax-in-cells.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-bullet-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-ordered-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-nested-tab-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented-after-blank-line.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tilde-with-tabs-after-nested-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-blank-line.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-nested-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-three-levels.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-task-syntax.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-after-nested-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-tab-and-spaces.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-with-tabs.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-nested-item-tab-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts

diff --git a/.prettierignore b/.prettierignore
index 0cec5fa211d..598a5ca1889 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -9,3 +9,6 @@ pnpm-lock.yaml
 
 **/translations.json
 /CHANGELOG.md
+
+# markdown round trip fixtures, formatting is part of the test
+packages/web-pkg/tests/unit/editor/strategies/fixtures/
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/basics.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/basics.md
new file mode 100644
index 00000000000..f0700b5a63b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/basics.md
@@ -0,0 +1,45 @@
+---
+title: Fixtures
+tags: [a, b]
+---
+
+# Heading 1
+
+## Heading 2
+
+Setext heading
+==============
+
+Text with *emphasis*, __strong__, ~~strike~~, `code` and a [link](https://opencloud.eu "title").
+A second line with a hard break  
+after it.
+
+![image](https://opencloud.eu/logo.png)
+
+> A quote
+> with two lines
+>
+> > nested
+
+***
+
+* bullet
+* list
+  + nested
+
+1. ordered
+2. list
+
+- [ ] open task
+- [x] done task
+
+| left | center | right |
+|:-----|:------:|------:|
+| a | b | c |
+| `d` | **e** | [f](#f) |
+
+```js
+const x = 1
+```
+
+    indented code
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/blockquote-alert.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/blockquote-alert.md
new file mode 100644
index 00000000000..d1adbf20db6
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/blockquote-alert.md
@@ -0,0 +1,2 @@
+> [!NOTE]
+> hint
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/blockquote-escaped-alert-marker.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/blockquote-escaped-alert-marker.md
new file mode 100644
index 00000000000..19572458657
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/blockquote-escaped-alert-marker.md
@@ -0,0 +1,3 @@
+> \[!NOTE\](x) text
+
+> \[!NOTE\] text
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-1-space.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-1-space.md
new file mode 100644
index 00000000000..411b8e433ed
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-1-space.md
@@ -0,0 +1,3 @@
+ ```
+ code
+ ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-2-spaces.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-2-spaces.md
new file mode 100644
index 00000000000..5e60169b8dd
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-2-spaces.md
@@ -0,0 +1,4 @@
+  ```
+   code
+    x
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-indented-fence-after-list.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-indented-fence-after-list.md
new file mode 100644
index 00000000000..5f313633e6e
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-indented-fence-after-list.md
@@ -0,0 +1,4 @@
+- a
+ ```
+ code
+ ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-asterisk-markers.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-asterisk-markers.md
new file mode 100644
index 00000000000..6e62dbbbd71
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-asterisk-markers.md
@@ -0,0 +1,2 @@
+* a
+* b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-blockquote-in-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-blockquote-in-item.md
new file mode 100644
index 00000000000..e849f382df5
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-blockquote-in-item.md
@@ -0,0 +1,2 @@
+- > quote
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-ordered-sub-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-ordered-sub-item.md
new file mode 100644
index 00000000000..89f20ffefdb
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-ordered-sub-item.md
@@ -0,0 +1,3 @@
+- a
+  1. 
+  2. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-in-blockquote.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-in-blockquote.md
new file mode 100644
index 00000000000..a2737f15f5b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-in-blockquote.md
@@ -0,0 +1 @@
+> - 
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-with-sub-list.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-with-sub-list.md
new file mode 100644
index 00000000000..e3fa9edf40e
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-with-sub-list.md
@@ -0,0 +1,2 @@
+- 
+  - x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item.md
new file mode 100644
index 00000000000..277cc02ff38
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item.md
@@ -0,0 +1 @@
+- 
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-items.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-items.md
new file mode 100644
index 00000000000..5f6fb46afc1
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-items.md
@@ -0,0 +1,6 @@
+- a
+- 
+- b
+
+1. 
+2. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-sub-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-sub-item.md
new file mode 100644
index 00000000000..97166cee15d
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-sub-item.md
@@ -0,0 +1,3 @@
+- a
+  - b
+  - 
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-item-with-children.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-item-with-children.md
new file mode 100644
index 00000000000..42fc0293dc8
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-item-with-children.md
@@ -0,0 +1,8 @@
+- Parent
+  - &nbsp;
+    - x
+  - c
+
+- a
+  - &nbsp;
+    - x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-items.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-items.md
new file mode 100644
index 00000000000..52848f45658
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-items.md
@@ -0,0 +1,9 @@
+- Parent
+  - &nbsp;
+  - c
+- Next
+
+1. Parent
+   - &nbsp;
+   - c
+2. Next
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-escaped-lines-in-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-escaped-lines-in-item.md
new file mode 100644
index 00000000000..07111fc775b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-escaped-lines-in-item.md
@@ -0,0 +1,3 @@
+- a
+  2\. b
+  Dr\. Smith
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-below-empty-marker.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-below-empty-marker.md
new file mode 100644
index 00000000000..b4002e586ad
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-below-empty-marker.md
@@ -0,0 +1,3 @@
+-
+  # Title
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-item.md
new file mode 100644
index 00000000000..f8828005764
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-item.md
@@ -0,0 +1,2 @@
+- # Title
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-letter-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-letter-item.md
new file mode 100644
index 00000000000..e3f695da801
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-letter-item.md
@@ -0,0 +1,3 @@
+a. 
+   # Title
+b. y
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-ordered-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-ordered-item.md
new file mode 100644
index 00000000000..999d5473b68
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-ordered-item.md
@@ -0,0 +1,2 @@
+1. # Title
+2. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-image-after-text.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-image-after-text.md
new file mode 100644
index 00000000000..54505d88a26
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-image-after-text.md
@@ -0,0 +1,3 @@
+- a
+
+  ![a](http://x/a.png)
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-image-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-image-item.md
new file mode 100644
index 00000000000..de5a22e343d
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-image-item.md
@@ -0,0 +1,6 @@
+- ![a](http://x/a.png)
+  - sub
+- a
+- ![b](http://x/b.png)
+
+1. ![c](http://x/c.png)
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-letters-empty-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-letters-empty-item.md
new file mode 100644
index 00000000000..32b023b4387
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-letters-empty-item.md
@@ -0,0 +1,3 @@
+a. one
+b. 
+c. three
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-literal-nbsp.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-literal-nbsp.md
new file mode 100644
index 00000000000..dd5e7126b32
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-literal-nbsp.md
@@ -0,0 +1,5 @@
+- &amp;nbsp;
+  - x
+
+a. &amp;nbsp;
+b. two
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-lowercase-letters.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-lowercase-letters.md
new file mode 100644
index 00000000000..dfe6e687154
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-lowercase-letters.md
@@ -0,0 +1,2 @@
+a. one
+b. two
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-lowercase-roman-numerals.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-lowercase-roman-numerals.md
new file mode 100644
index 00000000000..f76c059dc72
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-lowercase-roman-numerals.md
@@ -0,0 +1,2 @@
+i. one
+ii. two
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-content-indented-2-spaces.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-content-indented-2-spaces.md
new file mode 100644
index 00000000000..12e4ed6d881
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-content-indented-2-spaces.md
@@ -0,0 +1,3 @@
+1. a
+
+  more
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-continuation-line.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-continuation-line.md
new file mode 100644
index 00000000000..b19caf123f8
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-continuation-line.md
@@ -0,0 +1,2 @@
+1. a
+  b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.md
new file mode 100644
index 00000000000..97ac8afb947
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.md
@@ -0,0 +1,2 @@
+1. a
+   12345678901\. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned-nested.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned-nested.md
new file mode 100644
index 00000000000..0ac87d87dab
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned-nested.md
@@ -0,0 +1,12 @@
+1. parent
+    1. item 1
+    2. item 2
+    3. item 3
+    4. item 4
+    5. item 5
+    6. item 6
+    7. item 7
+    8. item 8
+    9. item 9
+   10. item 10
+2. next
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned.md
new file mode 100644
index 00000000000..ff75b2278ad
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned.md
@@ -0,0 +1,10 @@
+ 1. item 1
+ 2. item 2
+ 3. item 3
+ 4. item 4
+ 5. item 5
+ 6. item 6
+ 7. item 7
+ 8. item 8
+ 9. item 9
+10. item 10
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-start-number.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-start-number.md
new file mode 100644
index 00000000000..b2df56582c9
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-start-number.md
@@ -0,0 +1,2 @@
+3. a
+4. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-code-block.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-code-block.md
new file mode 100644
index 00000000000..63ad90fe3fe
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-code-block.md
@@ -0,0 +1,4 @@
+1. ```
+   x
+   ```
+   *em* [l](http://x)
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-heading.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-heading.md
new file mode 100644
index 00000000000..8feaba1b2aa
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-heading.md
@@ -0,0 +1,2 @@
+- # Title
+  [l](http://x) **b** y
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-uppercase-letters.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-uppercase-letters.md
new file mode 100644
index 00000000000..266a343b194
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-uppercase-letters.md
@@ -0,0 +1,2 @@
+A. one
+B. two
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-uppercase-roman-numerals.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-uppercase-roman-numerals.md
new file mode 100644
index 00000000000..d5c0838e470
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-uppercase-roman-numerals.md
@@ -0,0 +1,2 @@
+I. one
+II. two
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-escaped-block-syntax.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-escaped-block-syntax.md
new file mode 100644
index 00000000000..921af594ea6
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-escaped-block-syntax.md
@@ -0,0 +1,20 @@
+1\. May
+
+1\) May
+
+\- not a list
+
+\+ not a list
+
+\# not a heading
+
+2026\. was a year
+
+A\. Müller
+
+I\. Introduction
+
+i\. e. something
+
+Title
+\===
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-indented-lines.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-indented-lines.md
new file mode 100644
index 00000000000..9b68f00a5a0
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-indented-lines.md
@@ -0,0 +1,7 @@
+ x paragraph
+
+a
+  b
+
+a  
+   b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-soft-line-breaks.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-soft-line-breaks.md
new file mode 100644
index 00000000000..5bd61f9695a
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-soft-line-breaks.md
@@ -0,0 +1,4 @@
+Hi
+Mr. Smith
+2. Liga
+1\. one
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-text-like-block-syntax.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-text-like-block-syntax.md
new file mode 100644
index 00000000000..a6ab441aa4f
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-text-like-block-syntax.md
@@ -0,0 +1,7 @@
+#hashtag
+
++1
+
+-5 degrees
+
+1.5 liters
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/table-block-syntax-in-cells.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/table-block-syntax-in-cells.md
new file mode 100644
index 00000000000..64c69347766
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/table-block-syntax-in-cells.md
@@ -0,0 +1,3 @@
+| a | b |
+|---|---|
+| - | 1. x |
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-bullet-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-bullet-item.md
new file mode 100644
index 00000000000..73515bd2339
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-bullet-item.md
@@ -0,0 +1,6 @@
+- [ ] a
+  - b
+
+    ```
+    code
+    ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-ordered-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-ordered-item.md
new file mode 100644
index 00000000000..2c4f273200c
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-ordered-item.md
@@ -0,0 +1,6 @@
+- [ ] a
+  1. b
+
+     ```js
+     code
+     ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-nested-tab-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-nested-tab-indented.md
new file mode 100644
index 00000000000..1fbd5aa881c
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-nested-tab-indented.md
@@ -0,0 +1,6 @@
+- [ ] a
+	- [ ] b
+		```
+		code
+			indented
+		```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented-after-blank-line.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented-after-blank-line.md
new file mode 100644
index 00000000000..7cedc26debe
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented-after-blank-line.md
@@ -0,0 +1,8 @@
+- [ ] a
+
+	```
+	code
+	```
+- [ ] b
+
+after
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented.md
new file mode 100644
index 00000000000..cefe8c110eb
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented.md
@@ -0,0 +1,4 @@
+- [ ] a
+	```js
+	const x = 1
+	```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tilde-with-tabs-after-nested-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tilde-with-tabs-after-nested-item.md
new file mode 100644
index 00000000000..2feb5f79552
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tilde-with-tabs-after-nested-item.md
@@ -0,0 +1,6 @@
+- [ ] a
+  - [ ] b
+
+  ~~~
+  	x
+  ~~~
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-blank-line.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-blank-line.md
new file mode 100644
index 00000000000..a1256759439
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-blank-line.md
@@ -0,0 +1,6 @@
+- [ ] run
+
+  ```make
+  build:
+  	go build
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-nested-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-nested-item.md
new file mode 100644
index 00000000000..52ba58278c8
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-nested-item.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - [ ] b
+  ```
+  	x
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-three-levels.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-three-levels.md
new file mode 100644
index 00000000000..eee6a5b731b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-three-levels.md
@@ -0,0 +1,7 @@
+- [ ] a
+  - [ ] b
+    - [ ] c
+
+    ```
+    	x
+    ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs.md
new file mode 100644
index 00000000000..28ffea5a22b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs.md
@@ -0,0 +1,5 @@
+- [ ] run
+  ```make
+  build:
+  	go build
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-task-syntax.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-task-syntax.md
new file mode 100644
index 00000000000..6dcfb04c3a4
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-task-syntax.md
@@ -0,0 +1,7 @@
+- [ ] a
+  ```md
+  - [ ] example
+  more text
+    - [ ] nested example
+  	x
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-after-nested-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-after-nested-item.md
new file mode 100644
index 00000000000..b84382c3aaa
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-after-nested-item.md
@@ -0,0 +1,4 @@
+- [ ] a
+  - [ ] b
+
+        	x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-tab-and-spaces.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-tab-and-spaces.md
new file mode 100644
index 00000000000..7dc0886fb42
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-tab-and-spaces.md
@@ -0,0 +1,3 @@
+- [ ] a
+
+  		x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-with-tabs.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-with-tabs.md
new file mode 100644
index 00000000000..579a088e11f
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-with-tabs.md
@@ -0,0 +1,3 @@
+- [ ] a
+
+      	x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-nested-item-tab-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-nested-item-tab-indented.md
new file mode 100644
index 00000000000..3d7df7b81bf
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-nested-item-tab-indented.md
@@ -0,0 +1,2 @@
+- [ ] a
+	- [ ] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
new file mode 100644
index 00000000000..76e6ed4c17e
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
@@ -0,0 +1,132 @@
+import { readdirSync, readFileSync } from 'node:fs'
+import { join } from 'node:path'
+import { ref } from 'vue'
+import { Editor } from '@tiptap/vue-3'
+import { Marked } from 'marked'
+import { createTestingPinia } from '@opencloud-eu/web-test-helpers'
+import { useStrategyMarkdown } from '../../../../src/editor/composables/strategies/markdown'
+import { registerMarkdownListTokenizer } from '../../../../src/editor/extensions'
+import type { TextEditorLinkPanelRequest, TextEditorState } from '../../../../src/editor/types'
+
+vi.mock('vue3-gettext', () => ({
+  useGettext: () => ({ $gettext: (text: string) => text })
+}))
+
+const fixturesDir = join(import.meta.dirname, 'fixtures', 'markdown')
+
+function loadFixtures(dir: string): [string, string][] {
+  return readdirSync(dir)
+    .filter((name) => name.endsWith('.md'))
+    .sort()
+    .map((name) => {
+      const markdown = readFileSync(join(dir, name), 'utf8')
+      // an empty fixture would pass silently
+      if (!markdown.trim()) {
+        throw new Error(`Empty fixture ${name}`)
+      }
+      return [name, markdown]
+    })
+}
+
+function save(markdown: string): string {
+  const state: TextEditorState = {
+    sourceMode: ref(false),
+    linkPanel: ref<TextEditorLinkPanelRequest | null>(null),
+    editorZoom: ref(100)
+  }
+  const strategy = useStrategyMarkdown(state)
+  const editor = new Editor({
+    extensions: strategy.extensions(),
+    content: strategy.deserialize(markdown),
+    contentType: 'markdown'
+  })
+  expect(() => editor.state.doc.check()).not.toThrow()
+  const saved = strategy.serialize(editor.state.doc)
+  editor.destroy()
+  return saved
+}
+
+// Reference renderer for both the original and the saved markdown. The list tokenizer
+// makes marked read a lone `- ` as an empty item, as CommonMark does. Since the editor
+// uses the same tokenizer, empty items need inline tests with exact output.
+// The render check is weak where marked differs from the editor, which needs inline
+// tests as well: marked reads letter or roman lists and frontmatter as paragraphs,
+// expands tabs in list items to spaces, and normalize() folds nbsp into a space.
+const marked = new Marked()
+registerMarkdownListTokenizer(marked)
+
+const blockTagPattern = /^(BLOCKQUOTE|H[1-6]|HR|OL|P|PRE|TABLE|UL)$/
+
+/**
+ * Wraps the inline content of tight list items into paragraphs, since the editor
+ * does not keep lists tight or loose.
+ */
+function wrapListItemContent(item: Element) {
+  let paragraph: HTMLParagraphElement | null = null
+  for (const child of Array.from(item.childNodes)) {
+    if (child instanceof Element && blockTagPattern.test(child.tagName)) {
+      paragraph = null
+      continue
+    }
+    if (!paragraph) {
+      paragraph = document.createElement('p')
+      item.insertBefore(paragraph, child)
+    }
+    paragraph.appendChild(child)
+  }
+}
+
+/**
+ * Removes differences that do not change what a reader sees: whitespace, tight or
+ * loose lists, and the "&nbsp;" the editor writes into empty list items.
+ */
+function normalize(html: string): string {
+  const template = document.createElement('template')
+  template.innerHTML = html
+  const root = template.content
+
+  root
+    .querySelectorAll('li > input[type="checkbox"], li > p:first-child > input')
+    .forEach((input) => {
+      const checkbox = input as HTMLInputElement
+      checkbox.closest('li').dataset.task = checkbox.checked ? 'done' : 'open'
+      checkbox.remove()
+    })
+  root.querySelectorAll('li').forEach(wrapListItemContent)
+
+  const walker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT)
+  for (let node = walker.nextNode(); node; node = walker.nextNode()) {
+    if (!node.parentElement?.closest('code, pre')) {
+      node.textContent = node.textContent.replace(/\s+/g, ' ')
+    }
+  }
+
+  // one tag per line for readable diffs
+  return template.innerHTML
+    .replace(
+      /\s*(<\/?(?:blockquote|br|h[1-6]|hr|li|ol|p|pre|table|thead|tbody|tr|td|th|ul)\b[^>]*>)\s*/g,
+      '$1\n'
+    )
+    .replace(/<p>\n<\/p>\n/g, '')
+}
+
+function render(markdown: string): string {
+  return normalize(marked.parse(markdown) as string)
+}
+
+function expectRoundtrip(markdown: string) {
+  const saved = save(markdown)
+
+  expect(render(saved), saved).toBe(render(markdown))
+  expect(save(saved)).toBe(saved)
+}
+
+describe('markdown fixture roundtrip', () => {
+  beforeEach(() => {
+    createTestingPinia()
+  })
+
+  it.each(loadFixtures(fixturesDir))('keeps %s', (_, markdown) => {
+    expectRoundtrip(markdown)
+  })
+})

From 289fbbbc77eecfd4144a1c78560379cca1e9bb8c Mon Sep 17 00:00:00 2001
From: Jannik Stehle <j.stehle@opencloud.eu>
Date: Fri, 9 Oct 2026 10:30:33 +0200
Subject: [PATCH 3/6] test(web-pkg): drop inline markdown round trip tests
 covered by fixtures

---
 .../markdown/list-item-escaped-marker.md      |  1 +
 .../fixtures/markdown/list-literal-nbsp.md    |  4 +
 .../list-ordered-item-escaped-line.md         |  8 ++
 .../strategies/markdownListRoundtrip.spec.ts  | 87 -----------------
 .../markdownParagraphRoundtrip.spec.ts        | 18 ----
 .../markdownTaskListRoundtrip.spec.ts         | 93 ++++++++-----------
 6 files changed, 50 insertions(+), 161 deletions(-)
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-item-escaped-marker.md

diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-item-escaped-marker.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-item-escaped-marker.md
new file mode 100644
index 00000000000..0aa893e59ad
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-item-escaped-marker.md
@@ -0,0 +1 @@
+1. \-
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-literal-nbsp.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-literal-nbsp.md
index dd5e7126b32..527d43f20ff 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-literal-nbsp.md
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-literal-nbsp.md
@@ -1,3 +1,7 @@
+- &amp;nbsp;
+
+text
+
 - &amp;nbsp;
   - x
 
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.md
index 97ac8afb947..3de17495c2d 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.md
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.md
@@ -1,2 +1,10 @@
 1. a
    12345678901\. b
+2. a
+   B\. b
+3. a
+   2\. b
+4. a
+   \- b
+5. a
+   \# b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
index 4324414ebac..a5a40795ae0 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
@@ -135,46 +135,6 @@ describe('markdown list roundtrip', () => {
       }
     )
 
-    it.each([
-      '- # Title\n  [l](http://x) **b** y\n',
-      '1. ```\n   x\n   ```\n   *em* [l](http://x)\n'
-    ])('keeps the inline formatting of text after a block in %j', (markdown) => {
-      const { editor, serialized } = expectStableRoundtrip(markdown)
-
-      expect(serialized).not.toContain('\\')
-      const marks = toJSON(editor)
-        .content[0].content[0].content.at(-1)
-        .content.flatMap(({ marks = [] }) => marks.map(({ type }) => type))
-      expect(marks).toContain('link')
-    })
-
-    it.each(['- &amp;nbsp;\n', '- &amp;nbsp;\n  - x\n', 'a. &amp;nbsp;\nb. two\n'])(
-      'keeps the literal text "&nbsp;" in %j',
-      (markdown) => {
-        const { editor } = expectStableRoundtrip(markdown)
-
-        expect(toJSON(editor).content[0].content[0].content[0]).toEqual({
-          type: 'paragraph',
-          content: [{ type: 'text', text: '&nbsp;' }]
-        })
-      }
-    )
-
-    it.each([
-      ['- ![a](http://x/a.png)\n', '- ![a](http://x/a.png)'],
-      ['- a\n- ![a](http://x/a.png)\n', '- a\n- ![a](http://x/a.png)'],
-      ['1. ![a](http://x/a.png)\n', '1. ![a](http://x/a.png)'],
-      ['- ![a](http://x/a.png)\n  - sub\n', '- ![a](http://x/a.png)\n  - sub'],
-      ['- a\n\n  ![a](http://x/a.png)\n', '- a\n\n  ![a](http://x/a.png)']
-    ])('keeps the image in %j', (markdown, expected) => {
-      const { editor, serialized } = expectStableRoundtrip(markdown)
-
-      expect(serialized).toBe(expected)
-      expect(toJSON(editor).content[0].content.at(-1).content).toContainEqual(
-        expect.objectContaining({ type: 'image' })
-      )
-    })
-
     it.each([
       ['- \n', '-'],
       ['- \n- b\n', '-\n- b'],
@@ -224,32 +184,12 @@ describe('markdown list roundtrip', () => {
       expect(editor.getText()).toContain('[x] b')
     })
 
-    const rightAligned = Array.from(
-      { length: 10 },
-      (_, index) => `${String(index + 1).padStart(2)}. item ${index + 1}`
-    ).join('\n')
-
-    it('keeps every item of a right aligned list', () => {
-      const { editor } = expectStableRoundtrip(`${rightAligned}\n`)
-
-      const [list] = toJSON(editor).content
-      expect(list.type).toBe('orderedList')
-      expect(list.content).toHaveLength(10)
-      expect(list.content[9].content[0].content[0].text).toBe('item 10')
-    })
-
     it('starts a list numbered from 0 at 1', () => {
       const { editor } = expectStableRoundtrip('0. a\n1. b\n')
 
       expect(toJSON(editor).content[0].attrs.start).toBe(1)
     })
 
-    it('keeps the start number', () => {
-      const { editor } = expectStableRoundtrip('3. a\n4. b\n')
-
-      expect(toJSON(editor).content[0]).toMatchObject({ type: 'orderedList', attrs: { start: 3 } })
-    })
-
     it.each([
       ['a', 'a. one\nb. two'],
       ['A', 'A. one\nB. two'],
@@ -279,32 +219,5 @@ describe('markdown list roundtrip', () => {
         ]
       })
     })
-
-    it('keeps every item of a right aligned nested list', () => {
-      const nested = rightAligned
-        .split('\n')
-        .map((line) => `   ${line}`)
-        .join('\n')
-      const { editor } = expectStableRoundtrip(`1. parent\n${nested}\n2. next\n`)
-
-      const [list] = toJSON(editor).content
-      expect(list.content).toHaveLength(2)
-      expect(list.content[0].content[1].type).toBe('orderedList')
-      expect(list.content[0].content[1].content).toHaveLength(10)
-    })
-  })
-
-  describe('task lists', () => {
-    it.each([
-      ['a bullet', '- [ ] a\n  - b\n\n    ```\n    code\n    ```\n', 'bulletList'],
-      ['an ordered', '- [ ] a\n  1. b\n\n     ```js\n     code\n     ```\n', 'orderedList']
-    ])('keeps a code block in %s list item in a task item', (_, markdown, type) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(toJSON(editor).content[0].content[0].content[1]).toMatchObject({
-        type,
-        content: [{ type: 'listItem', content: [{ type: 'paragraph' }, { type: 'codeBlock' }] }]
-      })
-    })
   })
 })
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
index 875135c0904..e49bc5641fc 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
@@ -121,16 +121,6 @@ describe('markdown paragraph roundtrip', () => {
       expect(serialized).toContain('| -   | 1. x |')
     })
 
-    it('keeps escaped list markers as text', () => {
-      const { editor } = expectStableRoundtrip('\\- dash\n\n1\\. text\n\n1. \\-\n')
-
-      expect(toJSON(editor).content.map(({ type }) => type)).toEqual([
-        'paragraph',
-        'paragraph',
-        'orderedList'
-      ])
-    })
-
     it('keeps an alert marker in a blockquote', () => {
       const { serialized } = expectStableRoundtrip('> [!NOTE]\n> hint\n')
 
@@ -176,15 +166,7 @@ describe('markdown paragraph roundtrip', () => {
       ])
     })
 
-    it('escapes ordered list markers after a soft line break', () => {
-      const { editor, serialized } = expectStableRoundtrip('- a\n  2\\. b\n  Dr\\. Smith\n')
-
-      expect(serialized).toBe('- a\n2\\. b\nDr\\. Smith')
-      expect(toJSON(editor).content[0].content).toHaveLength(1)
-    })
-
     it.each([
-      ['12345678901. b', '12345678901\\. b'],
       ['B.\u00a0b', 'B\\.\u00a0b'],
       ['2.\u00a0b', '2\\.\u00a0b'],
       ['-\u00a0b', '\\-\u00a0b'],
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts
index 514ab86413f..2a441baa139 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts
@@ -61,14 +61,11 @@ describe('markdown task list and code block roundtrip', () => {
   })
 
   describe('code blocks', () => {
-    it.each([
-      [' ```\n code\n ```\n', 'code'],
-      ['  ~~~\n   code\n    x\n  ~~~\n', ' code\n  x'],
-      ['- a\n ```\n code\n ```\n', 'code']
-    ])('keeps the indented code block %j', (markdown, code) => {
-      const { editor } = expectStableRoundtrip(markdown)
+    // marked keeps the indentation of tilde fenced code, so no fixture
+    it('keeps the code of an indented tilde fence', () => {
+      const { editor } = expectStableRoundtrip('  ~~~\n   code\n    x\n  ~~~\n')
 
-      expect(codeBlockTexts(toJSON(editor))).toEqual([code])
+      expect(codeBlockTexts(toJSON(editor))).toEqual([' code\n  x'])
     })
   })
 
@@ -110,16 +107,14 @@ describe('markdown task list and code block roundtrip', () => {
       })
     })
 
-    it.each([
-      ['a paragraph', '- [ ] a\n\tb\n', 'paragraph'],
-      ['a task item', '- [ ] a\n\t- [ ] b\n', 'taskList']
-    ])('keeps a tab indented line as %s in the task item', (_, markdown, type) => {
-      const { editor } = expectStableRoundtrip(markdown)
+    it('keeps a tab indented line as a paragraph in the task item', () => {
+      const { editor } = expectStableRoundtrip('- [ ] a\n\tb\n')
 
       expect(toJSON(editor).content).toHaveLength(1)
-      expect(toJSON(editor).content[0].content[0].content[1]).toMatchObject({ type })
+      expect(toJSON(editor).content[0].content[0].content[1]).toMatchObject({ type: 'paragraph' })
     })
 
+    // The fixtures cannot guard these: marked expands tabs in list items to spaces
     it.each([
       ['directly below the item', '- [ ] run\n  ```make\n  build:\n  \tgo build\n  ```\n'],
       ['after a blank line', '- [ ] run\n\n  ```make\n  build:\n  \tgo build\n  ```\n']
@@ -134,49 +129,35 @@ describe('markdown task list and code block roundtrip', () => {
     })
 
     it.each([
-      ['without a blank line', '- [ ] a\n  - [ ] b\n  ```\n  \tx\n  ```\n'],
-      ['with a tilde fence', '- [ ] a\n  - [ ] b\n\n  ~~~\n  \tx\n  ~~~\n'],
-      ['three levels deep', '- [ ] a\n  - [ ] b\n    - [ ] c\n\n    ```\n    \tx\n    ```\n']
-    ])('keeps tabs in a code block after a nested task item %s', (_, markdown) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(codeBlockTexts(toJSON(editor))).toEqual(['\tx'])
-    })
-
-    it('keeps a code block after a nested task item in the outer item', () => {
-      const { editor } = expectStableRoundtrip('- [ ] a\n  - [ ] b\n  ```\n  x\n  ```\n')
-
-      expect(toJSON(editor).content[0].content[0].content.map(({ type }) => type)).toEqual([
-        'paragraph',
-        'taskList',
-        'codeBlock'
-      ])
-    })
-
-    it.each([
-      ['- [ ] a\n  ```md\n  - [ ] example\n  more text\n  ```\n', '- [ ] example\nmore text'],
-      ['- [ ] a\n  ```md\n    - [ ] nested example\n  \tx\n  ```\n', '  - [ ] nested example\n\tx']
-    ])('keeps task item syntax in a code block %j as code', (markdown, code) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(codeBlockTexts(toJSON(editor))).toEqual([code])
-    })
-
-    it.each([
-      ['- [ ] a\n\t```js\n\tconst x = 1\n\t```\n', 'const x = 1'],
-      ['- [ ] a\n\n\t```\n\tcode\n\t```\n- [ ] b\n\nafter\n', 'code'],
-      ['- [ ] a\n\t- [ ] b\n\t\t```\n\t\tcode\n\t\t\tindented\n\t\t```\n', 'code\n\tindented']
-    ])('keeps a tab indented code block %j in a task item', (markdown, code) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(codeBlockTexts(toJSON(editor))).toEqual([code])
-    })
-
-    it.each([
-      ['- [ ] a\n\n      \tx\n', '\tx'],
-      ['- [ ] a\n\n  \t\tx\n', '\tx'],
-      ['- [ ] a\n  - [ ] b\n\n        \tx\n', '\tx']
-    ])('keeps tabs in the indented code block %j in a task item', (markdown, code) => {
+      ['after a nested item', '- [ ] a\n  - [ ] b\n  ```\n  \tx\n  ```\n', '\tx'],
+      [
+        'in a tilde fence after a nested item',
+        '- [ ] a\n  - [ ] b\n\n  ~~~\n  \tx\n  ~~~\n',
+        '\tx'
+      ],
+      [
+        'three levels deep',
+        '- [ ] a\n  - [ ] b\n    - [ ] c\n\n    ```\n    \tx\n    ```\n',
+        '\tx'
+      ],
+      [
+        'with task item syntax',
+        '- [ ] a\n  ```md\n    - [ ] nested example\n  \tx\n  ```\n',
+        '  - [ ] nested example\n\tx'
+      ],
+      [
+        'with a tab indented fence',
+        '- [ ] a\n\t- [ ] b\n\t\t```\n\t\tcode\n\t\t\tindented\n\t\t```\n',
+        'code\n\tindented'
+      ],
+      ['in an indented code block', '- [ ] a\n\n      \tx\n', '\tx'],
+      ['in a tab indented code block', '- [ ] a\n\n  \t\tx\n', '\tx'],
+      [
+        'in an indented code block after a nested item',
+        '- [ ] a\n  - [ ] b\n\n        \tx\n',
+        '\tx'
+      ]
+    ])('keeps tabs in a code block in a task item %s', (_, markdown, code) => {
       const { editor } = expectStableRoundtrip(markdown)
 
       expect(codeBlockTexts(toJSON(editor))).toEqual([code])

From 6088030047fa9216d7e4e42df7be2f2d8b9a3fbb Mon Sep 17 00:00:00 2001
From: Jannik Stehle <j.stehle@opencloud.eu>
Date: Fri, 9 Oct 2026 10:43:53 +0200
Subject: [PATCH 4/6] test(web-pkg): share markdown round trip test helpers

---
 .../tests/unit/editor/strategies/helpers.ts   | 58 +++++++++++++++++++
 .../strategies/markdownFixtures.spec.ts       | 25 ++------
 .../strategies/markdownListRoundtrip.spec.ts  | 49 ++--------------
 .../strategies/markdownMarkedInstance.spec.ts | 13 +----
 .../markdownParagraphRoundtrip.spec.ts        | 56 ++++--------------
 .../markdownTaskListRoundtrip.spec.ts         | 48 ++-------------
 6 files changed, 87 insertions(+), 162 deletions(-)
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/helpers.ts

diff --git a/packages/web-pkg/tests/unit/editor/strategies/helpers.ts b/packages/web-pkg/tests/unit/editor/strategies/helpers.ts
new file mode 100644
index 00000000000..86d4459a20c
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/helpers.ts
@@ -0,0 +1,58 @@
+import { expect } from 'vitest'
+import { ref } from 'vue'
+import { Editor } from '@tiptap/vue-3'
+import type { JSONContent } from '@tiptap/core'
+import { useStrategyMarkdown } from '../../../../src/editor/composables/strategies/markdown'
+import type { TextEditorLinkPanelRequest, TextEditorState } from '../../../../src/editor/types'
+import type { ContentTypeStrategy } from '../../../../src/editor/composables/strategies/types'
+
+export function createStrategy(): ContentTypeStrategy {
+  const state: TextEditorState = {
+    sourceMode: ref(false),
+    linkPanel: ref<TextEditorLinkPanelRequest | null>(null),
+    editorZoom: ref(100)
+  }
+  return useStrategyMarkdown(state)
+}
+
+const editors: Editor[] = []
+
+export function createEditor(strategy: ContentTypeStrategy, content: string): Editor {
+  const editor = new Editor({
+    extensions: strategy.extensions(),
+    content: strategy.deserialize(content),
+    contentType: 'markdown'
+  })
+  editors.push(editor)
+  return editor
+}
+
+export function destroyEditors(): void {
+  editors.splice(0).forEach((editor) => editor.destroy())
+}
+
+export function toJSON(editor: Editor): JSONContent {
+  return editor.getJSON() as JSONContent
+}
+
+export interface LoadedMarkdown {
+  editor: Editor
+  serialized: string
+}
+
+export function load(markdown: string): LoadedMarkdown {
+  const strategy = createStrategy()
+  const editor = createEditor(strategy, markdown)
+  return { editor, serialized: strategy.serialize(editor.state.doc) }
+}
+
+export function expectStableRoundtrip(markdown: string): LoadedMarkdown {
+  const { editor, serialized } = load(markdown)
+  expect(() => editor.state.doc.check()).not.toThrow()
+
+  const reloaded = load(serialized)
+  expect(() => reloaded.editor.state.doc.check()).not.toThrow()
+  expect(toJSON(reloaded.editor)).toEqual(toJSON(editor))
+
+  return { editor, serialized }
+}
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
index 76e6ed4c17e..82e33984044 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
@@ -1,12 +1,9 @@
 import { readdirSync, readFileSync } from 'node:fs'
 import { join } from 'node:path'
-import { ref } from 'vue'
-import { Editor } from '@tiptap/vue-3'
 import { Marked } from 'marked'
 import { createTestingPinia } from '@opencloud-eu/web-test-helpers'
-import { useStrategyMarkdown } from '../../../../src/editor/composables/strategies/markdown'
 import { registerMarkdownListTokenizer } from '../../../../src/editor/extensions'
-import type { TextEditorLinkPanelRequest, TextEditorState } from '../../../../src/editor/types'
+import { destroyEditors, expectStableRoundtrip } from './helpers'
 
 vi.mock('vue3-gettext', () => ({
   useGettext: () => ({ $gettext: (text: string) => text })
@@ -29,21 +26,7 @@ function loadFixtures(dir: string): [string, string][] {
 }
 
 function save(markdown: string): string {
-  const state: TextEditorState = {
-    sourceMode: ref(false),
-    linkPanel: ref<TextEditorLinkPanelRequest | null>(null),
-    editorZoom: ref(100)
-  }
-  const strategy = useStrategyMarkdown(state)
-  const editor = new Editor({
-    extensions: strategy.extensions(),
-    content: strategy.deserialize(markdown),
-    contentType: 'markdown'
-  })
-  expect(() => editor.state.doc.check()).not.toThrow()
-  const saved = strategy.serialize(editor.state.doc)
-  editor.destroy()
-  return saved
+  return expectStableRoundtrip(markdown).serialized
 }
 
 // Reference renderer for both the original and the saved markdown. The list tokenizer
@@ -126,6 +109,10 @@ describe('markdown fixture roundtrip', () => {
     createTestingPinia()
   })
 
+  afterEach(() => {
+    destroyEditors()
+  })
+
   it.each(loadFixtures(fixturesDir))('keeps %s', (_, markdown) => {
     expectRoundtrip(markdown)
   })
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
index a5a40795ae0..e4762032c54 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
@@ -1,58 +1,19 @@
-import { ref } from 'vue'
-import { Editor } from '@tiptap/vue-3'
-import type { JSONContent } from '@tiptap/core'
 import { createTestingPinia } from '@opencloud-eu/web-test-helpers'
-import { useStrategyMarkdown } from '../../../../src/editor/composables/strategies/markdown'
-import type { TextEditorLinkPanelRequest, TextEditorState } from '../../../../src/editor/types'
-import type { ContentTypeStrategy } from '../../../../src/editor/composables/strategies/types'
+import { toJSON, load, expectStableRoundtrip, destroyEditors } from './helpers'
 
 vi.mock('vue3-gettext', () => ({
   useGettext: () => ({ $gettext: (text: string) => text })
 }))
 
-function createStrategy(): ContentTypeStrategy {
-  const state: TextEditorState = {
-    sourceMode: ref(false),
-    linkPanel: ref<TextEditorLinkPanelRequest | null>(null),
-    editorZoom: ref(100)
-  }
-  return useStrategyMarkdown(state)
-}
-
-function createEditor(strategy: ContentTypeStrategy, content: string): Editor {
-  return new Editor({
-    extensions: strategy.extensions(),
-    content: strategy.deserialize(content),
-    contentType: 'markdown'
-  })
-}
-
-function toJSON(editor: Editor): JSONContent {
-  return editor.getJSON() as JSONContent
-}
-
-function load(markdown: string) {
-  const strategy = createStrategy()
-  const editor = createEditor(strategy, markdown)
-  return { editor, serialized: strategy.serialize(editor.state.doc) }
-}
-
-function expectStableRoundtrip(markdown: string) {
-  const { editor, serialized } = load(markdown)
-  expect(() => editor.state.doc.check()).not.toThrow()
-
-  const reloaded = load(serialized)
-  expect(() => reloaded.editor.state.doc.check()).not.toThrow()
-  expect(toJSON(reloaded.editor)).toEqual(toJSON(editor))
-
-  return { editor, serialized }
-}
-
 describe('markdown list roundtrip', () => {
   beforeEach(() => {
     createTestingPinia()
   })
 
+  afterEach(() => {
+    destroyEditors()
+  })
+
   describe('list items', () => {
     it('keeps the parent of an empty sub item', () => {
       const { editor, serialized } = expectStableRoundtrip('- Parent\n  - \n- Next\n')
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownMarkedInstance.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownMarkedInstance.spec.ts
index 2e283acdb1e..bc71fd8dbce 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownMarkedInstance.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownMarkedInstance.spec.ts
@@ -1,23 +1,12 @@
-import { ref } from 'vue'
 import { Editor } from '@tiptap/vue-3'
 import { MarkdownManager } from '@tiptap/markdown'
 import { createTestingPinia } from '@opencloud-eu/web-test-helpers'
-import { useStrategyMarkdown } from '../../../../src/editor/composables/strategies/markdown'
-import type { TextEditorLinkPanelRequest, TextEditorState } from '../../../../src/editor/types'
+import { createStrategy } from './helpers'
 
 vi.mock('vue3-gettext', () => ({
   useGettext: () => ({ $gettext: (text: string) => text })
 }))
 
-function createStrategy() {
-  const state: TextEditorState = {
-    sourceMode: ref(false),
-    linkPanel: ref<TextEditorLinkPanelRequest | null>(null),
-    editorZoom: ref(100)
-  }
-  return useStrategyMarkdown(state)
-}
-
 /**
  * How many block tokenizers marked's process wide singleton carries. Every
  * `MarkdownManager` appends its extensions' tokenizers to whichever instance it
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
index e49bc5641fc..8bee1aba0f5 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
@@ -1,53 +1,17 @@
-import { ref } from 'vue'
-import { Editor } from '@tiptap/vue-3'
-import type { JSONContent } from '@tiptap/core'
 import { createTestingPinia } from '@opencloud-eu/web-test-helpers'
-import { useStrategyMarkdown } from '../../../../src/editor/composables/strategies/markdown'
-import type { TextEditorLinkPanelRequest, TextEditorState } from '../../../../src/editor/types'
-import type { ContentTypeStrategy } from '../../../../src/editor/composables/strategies/types'
+import {
+  createStrategy,
+  createEditor,
+  toJSON,
+  load,
+  expectStableRoundtrip,
+  destroyEditors
+} from './helpers'
 
 vi.mock('vue3-gettext', () => ({
   useGettext: () => ({ $gettext: (text: string) => text })
 }))
 
-function createStrategy(): ContentTypeStrategy {
-  const state: TextEditorState = {
-    sourceMode: ref(false),
-    linkPanel: ref<TextEditorLinkPanelRequest | null>(null),
-    editorZoom: ref(100)
-  }
-  return useStrategyMarkdown(state)
-}
-
-function createEditor(strategy: ContentTypeStrategy, content: string): Editor {
-  return new Editor({
-    extensions: strategy.extensions(),
-    content: strategy.deserialize(content),
-    contentType: 'markdown'
-  })
-}
-
-function toJSON(editor: Editor): JSONContent {
-  return editor.getJSON() as JSONContent
-}
-
-function load(markdown: string) {
-  const strategy = createStrategy()
-  const editor = createEditor(strategy, markdown)
-  return { editor, serialized: strategy.serialize(editor.state.doc) }
-}
-
-function expectStableRoundtrip(markdown: string) {
-  const { editor, serialized } = load(markdown)
-  expect(() => editor.state.doc.check()).not.toThrow()
-
-  const reloaded = load(serialized)
-  expect(() => reloaded.editor.state.doc.check()).not.toThrow()
-  expect(toJSON(reloaded.editor)).toEqual(toJSON(editor))
-
-  return { editor, serialized }
-}
-
 function serializeParagraph(text: string): string {
   const strategy = createStrategy()
   const editor = createEditor(strategy, '')
@@ -63,6 +27,10 @@ describe('markdown paragraph roundtrip', () => {
     createTestingPinia()
   })
 
+  afterEach(() => {
+    destroyEditors()
+  })
+
   describe('paragraphs', () => {
     it.each([
       ['- not a list', '\\- not a list'],
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts
index 2a441baa139..0fe7c9ed558 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts
@@ -1,53 +1,11 @@
-import { ref } from 'vue'
-import { Editor } from '@tiptap/vue-3'
 import type { JSONContent } from '@tiptap/core'
 import { createTestingPinia } from '@opencloud-eu/web-test-helpers'
-import { useStrategyMarkdown } from '../../../../src/editor/composables/strategies/markdown'
-import type { TextEditorLinkPanelRequest, TextEditorState } from '../../../../src/editor/types'
-import type { ContentTypeStrategy } from '../../../../src/editor/composables/strategies/types'
+import { toJSON, expectStableRoundtrip, destroyEditors } from './helpers'
 
 vi.mock('vue3-gettext', () => ({
   useGettext: () => ({ $gettext: (text: string) => text })
 }))
 
-function createStrategy(): ContentTypeStrategy {
-  const state: TextEditorState = {
-    sourceMode: ref(false),
-    linkPanel: ref<TextEditorLinkPanelRequest | null>(null),
-    editorZoom: ref(100)
-  }
-  return useStrategyMarkdown(state)
-}
-
-function createEditor(strategy: ContentTypeStrategy, content: string): Editor {
-  return new Editor({
-    extensions: strategy.extensions(),
-    content: strategy.deserialize(content),
-    contentType: 'markdown'
-  })
-}
-
-function toJSON(editor: Editor): JSONContent {
-  return editor.getJSON() as JSONContent
-}
-
-function load(markdown: string) {
-  const strategy = createStrategy()
-  const editor = createEditor(strategy, markdown)
-  return { editor, serialized: strategy.serialize(editor.state.doc) }
-}
-
-function expectStableRoundtrip(markdown: string) {
-  const { editor, serialized } = load(markdown)
-  expect(() => editor.state.doc.check()).not.toThrow()
-
-  const reloaded = load(serialized)
-  expect(() => reloaded.editor.state.doc.check()).not.toThrow()
-  expect(toJSON(reloaded.editor)).toEqual(toJSON(editor))
-
-  return { editor, serialized }
-}
-
 function codeBlockTexts(node: JSONContent): string[] {
   if (node.type === 'codeBlock') {
     return [node.content?.map(({ text }) => text).join('') ?? '']
@@ -60,6 +18,10 @@ describe('markdown task list and code block roundtrip', () => {
     createTestingPinia()
   })
 
+  afterEach(() => {
+    destroyEditors()
+  })
+
   describe('code blocks', () => {
     // marked keeps the indentation of tilde fenced code, so no fixture
     it('keeps the code of an indented tilde fence', () => {

From 39301bb446e9b86c6d759b10f72981d209e0b85f Mon Sep 17 00:00:00 2001
From: Jannik Stehle <j.stehle@opencloud.eu>
Date: Fri, 9 Oct 2026 11:21:04 +0200
Subject: [PATCH 5/6] test(web-pkg): check exact output of markdown fixtures

---
 .../fixtures/markdown/basics.out.md           | 48 ++++++++++++
 .../code-block-fence-indented-1-space.out.md  |  3 +
 .../code-block-fence-indented-2-spaces.out.md |  4 +
 ...ode-block-indented-fence-after-list.out.md |  5 ++
 .../markdown/list-asterisk-markers.out.md     |  2 +
 .../markdown/list-blockquote-in-item.out.md   |  3 +
 .../list-empty-first-ordered-sub-item.out.md  |  3 +
 .../list-empty-item-in-blockquote.out.md      |  1 +
 .../list-empty-item-with-sub-list.out.md      |  2 +
 .../fixtures/markdown/list-empty-item.out.md  |  1 +
 .../fixtures/markdown/list-empty-items.out.md |  6 ++
 .../markdown/list-empty-last-sub-item.out.md  |  3 +
 .../list-empty-sub-item-with-children.out.md  |  7 ++
 .../list-escaped-lines-in-item.out.md         |  3 +
 .../list-heading-below-empty-marker.out.md    |  3 +
 .../markdown/list-heading-in-item.out.md      |  3 +
 .../list-heading-in-letter-item.out.md        |  3 +
 .../list-heading-in-ordered-item.out.md       |  3 +
 .../markdown/list-letters-empty-item.out.md   |  3 +
 ...t-ordered-content-indented-2-spaces.out.md |  3 +
 .../list-ordered-continuation-line.out.md     |  2 +
 .../list-ordered-item-escaped-line.out.md     | 10 +++
 .../list-ordered-right-aligned-nested.out.md  | 12 +++
 .../list-ordered-right-aligned.out.md         | 10 +++
 .../list-text-after-code-block.out.md         |  6 ++
 .../markdown/list-text-after-heading.out.md   |  4 +
 .../markdown/paragraph-indented-lines.out.md  |  7 ++
 .../table-block-syntax-in-cells.out.md        |  4 +
 ...task-list-code-block-in-bullet-item.out.md |  5 ++
 ...ask-list-code-block-in-ordered-item.out.md |  5 ++
 ...list-code-block-nested-tab-indented.out.md |  6 ++
 ...block-tab-indented-after-blank-line.out.md |  7 ++
 .../task-list-code-block-tab-indented.out.md  |  4 +
 ...k-tilde-with-tabs-after-nested-item.out.md |  5 ++
 ...de-block-with-tabs-after-blank-line.out.md |  5 ++
 ...t-code-block-with-tabs-three-levels.out.md |  6 ++
 ...dented-code-block-after-nested-item.out.md |  5 ++
 ...-indented-code-block-tab-and-spaces.out.md |  4 +
 ...-list-indented-code-block-with-tabs.out.md |  4 +
 .../task-list-nested-item-tab-indented.out.md |  2 +
 .../tests/unit/editor/strategies/helpers.ts   |  8 +-
 .../strategies/markdownFixtures.spec.ts       | 78 +++++++++++++------
 42 files changed, 282 insertions(+), 26 deletions(-)
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/basics.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-1-space.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-2-spaces.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-indented-fence-after-list.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-asterisk-markers.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-blockquote-in-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-ordered-sub-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-in-blockquote.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-with-sub-list.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-items.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-sub-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-item-with-children.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-escaped-lines-in-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-below-empty-marker.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-letter-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-ordered-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-letters-empty-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-content-indented-2-spaces.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-continuation-line.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned-nested.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-code-block.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-heading.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-indented-lines.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/table-block-syntax-in-cells.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-bullet-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-ordered-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-nested-tab-indented.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented-after-blank-line.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tilde-with-tabs-after-nested-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-blank-line.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-three-levels.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-after-nested-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-tab-and-spaces.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-with-tabs.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-nested-item-tab-indented.out.md

diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/basics.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/basics.out.md
new file mode 100644
index 00000000000..112bc98509e
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/basics.out.md
@@ -0,0 +1,48 @@
+---
+title: Fixtures
+tags: [a, b]
+---
+
+# Heading 1
+
+## Heading 2
+
+# Setext heading
+
+Text with *emphasis*, **strong**, ~~strike~~, `code` and a [link](https://opencloud.eu "title").
+A second line with a hard break  
+after it.
+
+![image](https://opencloud.eu/logo.png)
+
+> A quote
+> with two lines
+>
+> > nested
+
+---
+
+- bullet
+- list
+  - nested
+
+1. ordered
+2. list
+
+- [ ] open task
+- [x] done task
+
+
+| left | center | right   |
+| :---- | :------: | -------: |
+| a    | b      | c       |
+| `d`  | **e**  | [f](#f) |
+
+
+```js
+const x = 1
+```
+
+```
+indented code
+```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-1-space.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-1-space.out.md
new file mode 100644
index 00000000000..7bec66de82d
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-1-space.out.md
@@ -0,0 +1,3 @@
+```
+code
+```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-2-spaces.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-2-spaces.out.md
new file mode 100644
index 00000000000..d60492e9769
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-fence-indented-2-spaces.out.md
@@ -0,0 +1,4 @@
+```
+ code
+  x
+```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-indented-fence-after-list.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-indented-fence-after-list.out.md
new file mode 100644
index 00000000000..b9da48e978b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/code-block-indented-fence-after-list.out.md
@@ -0,0 +1,5 @@
+- a
+
+```
+code
+```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-asterisk-markers.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-asterisk-markers.out.md
new file mode 100644
index 00000000000..4068906cb53
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-asterisk-markers.out.md
@@ -0,0 +1,2 @@
+- a
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-blockquote-in-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-blockquote-in-item.out.md
new file mode 100644
index 00000000000..76407b623f1
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-blockquote-in-item.out.md
@@ -0,0 +1,3 @@
+- &nbsp;
+  > quote
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-ordered-sub-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-ordered-sub-item.out.md
new file mode 100644
index 00000000000..e18c2945708
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-ordered-sub-item.out.md
@@ -0,0 +1,3 @@
+- a
+  1. &nbsp;
+  2. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-in-blockquote.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-in-blockquote.out.md
new file mode 100644
index 00000000000..62e6b27082a
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-in-blockquote.out.md
@@ -0,0 +1 @@
+> -
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-with-sub-list.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-with-sub-list.out.md
new file mode 100644
index 00000000000..7e52fbe3b0d
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item-with-sub-list.out.md
@@ -0,0 +1,2 @@
+- &nbsp;
+  - x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item.out.md
new file mode 100644
index 00000000000..39cdd0ded6d
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-item.out.md
@@ -0,0 +1 @@
+-
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-items.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-items.out.md
new file mode 100644
index 00000000000..da313df8ccb
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-items.out.md
@@ -0,0 +1,6 @@
+- a
+-
+- b
+
+1.
+2. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-sub-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-sub-item.out.md
new file mode 100644
index 00000000000..17221884813
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-sub-item.out.md
@@ -0,0 +1,3 @@
+- a
+  - b
+  -
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-item-with-children.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-item-with-children.out.md
new file mode 100644
index 00000000000..118d4a9f876
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-sub-item-with-children.out.md
@@ -0,0 +1,7 @@
+- Parent
+  - &nbsp;
+    - x
+  - c
+- a
+  - &nbsp;
+    - x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-escaped-lines-in-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-escaped-lines-in-item.out.md
new file mode 100644
index 00000000000..afa5a02a9a9
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-escaped-lines-in-item.out.md
@@ -0,0 +1,3 @@
+- a
+2\. b
+Dr\. Smith
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-below-empty-marker.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-below-empty-marker.out.md
new file mode 100644
index 00000000000..f06888e9dc5
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-below-empty-marker.out.md
@@ -0,0 +1,3 @@
+- &nbsp;
+  # Title
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-item.out.md
new file mode 100644
index 00000000000..f06888e9dc5
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-item.out.md
@@ -0,0 +1,3 @@
+- &nbsp;
+  # Title
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-letter-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-letter-item.out.md
new file mode 100644
index 00000000000..b16ae370c6b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-letter-item.out.md
@@ -0,0 +1,3 @@
+a. &nbsp;
+   # Title
+b. y
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-ordered-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-ordered-item.out.md
new file mode 100644
index 00000000000..13d317d78db
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-heading-in-ordered-item.out.md
@@ -0,0 +1,3 @@
+1. &nbsp;
+   # Title
+2. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-letters-empty-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-letters-empty-item.out.md
new file mode 100644
index 00000000000..ec31729bb14
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-letters-empty-item.out.md
@@ -0,0 +1,3 @@
+a. one
+b. &nbsp;
+c. three
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-content-indented-2-spaces.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-content-indented-2-spaces.out.md
new file mode 100644
index 00000000000..21906a2a23e
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-content-indented-2-spaces.out.md
@@ -0,0 +1,3 @@
+1. a
+
+more
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-continuation-line.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-continuation-line.out.md
new file mode 100644
index 00000000000..e0e7526d4ae
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-continuation-line.out.md
@@ -0,0 +1,2 @@
+1. a
+b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.out.md
new file mode 100644
index 00000000000..37bc041235b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-item-escaped-line.out.md
@@ -0,0 +1,10 @@
+1. a
+12345678901\. b
+2. a
+B\. b
+3. a
+2\. b
+4. a
+\- b
+5. a
+\# b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned-nested.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned-nested.out.md
new file mode 100644
index 00000000000..ee97c32ebad
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned-nested.out.md
@@ -0,0 +1,12 @@
+1. parent
+   1. item 1
+   2. item 2
+   3. item 3
+   4. item 4
+   5. item 5
+   6. item 6
+   7. item 7
+   8. item 8
+   9. item 9
+   10. item 10
+2. next
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned.out.md
new file mode 100644
index 00000000000..c09c9467280
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-ordered-right-aligned.out.md
@@ -0,0 +1,10 @@
+1. item 1
+2. item 2
+3. item 3
+4. item 4
+5. item 5
+6. item 6
+7. item 7
+8. item 8
+9. item 9
+10. item 10
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-code-block.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-code-block.out.md
new file mode 100644
index 00000000000..6293aa282c4
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-code-block.out.md
@@ -0,0 +1,6 @@
+1. &nbsp;
+   ```
+   x
+   ```
+
+   *em* [l](http://x)
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-heading.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-heading.out.md
new file mode 100644
index 00000000000..61161aa9d95
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-text-after-heading.out.md
@@ -0,0 +1,4 @@
+- &nbsp;
+  # Title
+
+  [l](http://x) **b** y
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-indented-lines.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-indented-lines.out.md
new file mode 100644
index 00000000000..b1a42791129
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/paragraph-indented-lines.out.md
@@ -0,0 +1,7 @@
+x paragraph
+
+a
+b
+
+a  
+b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/table-block-syntax-in-cells.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/table-block-syntax-in-cells.out.md
new file mode 100644
index 00000000000..d9da4146c39
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/table-block-syntax-in-cells.out.md
@@ -0,0 +1,4 @@
+
+| a   | b    |
+| --- | ---- |
+| -   | 1. x |
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-bullet-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-bullet-item.out.md
new file mode 100644
index 00000000000..31d16043c54
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-bullet-item.out.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - b
+    ```
+    code
+    ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-ordered-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-ordered-item.out.md
new file mode 100644
index 00000000000..a62e17590fd
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-in-ordered-item.out.md
@@ -0,0 +1,5 @@
+- [ ] a
+  1. b
+     ```js
+     code
+     ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-nested-tab-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-nested-tab-indented.out.md
new file mode 100644
index 00000000000..5c84ea9374a
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-nested-tab-indented.out.md
@@ -0,0 +1,6 @@
+- [ ] a
+  - [ ] b
+    ```
+    code
+    	indented
+    ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented-after-blank-line.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented-after-blank-line.out.md
new file mode 100644
index 00000000000..b463652a062
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented-after-blank-line.out.md
@@ -0,0 +1,7 @@
+- [ ] a
+  ```
+  code
+  ```
+- [ ] b
+
+after
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented.out.md
new file mode 100644
index 00000000000..746bc6fae2c
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tab-indented.out.md
@@ -0,0 +1,4 @@
+- [ ] a
+  ```js
+  const x = 1
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tilde-with-tabs-after-nested-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tilde-with-tabs-after-nested-item.out.md
new file mode 100644
index 00000000000..52ba58278c8
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-tilde-with-tabs-after-nested-item.out.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - [ ] b
+  ```
+  	x
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-blank-line.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-blank-line.out.md
new file mode 100644
index 00000000000..28ffea5a22b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-after-blank-line.out.md
@@ -0,0 +1,5 @@
+- [ ] run
+  ```make
+  build:
+  	go build
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-three-levels.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-three-levels.out.md
new file mode 100644
index 00000000000..4792f00f7e1
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-code-block-with-tabs-three-levels.out.md
@@ -0,0 +1,6 @@
+- [ ] a
+  - [ ] b
+    - [ ] c
+    ```
+    	x
+    ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-after-nested-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-after-nested-item.out.md
new file mode 100644
index 00000000000..c558fe39286
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-after-nested-item.out.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - [ ] b
+    ```
+    	x
+    ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-tab-and-spaces.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-tab-and-spaces.out.md
new file mode 100644
index 00000000000..a4dad886d78
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-tab-and-spaces.out.md
@@ -0,0 +1,4 @@
+- [ ] a
+  ```
+  	x
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-with-tabs.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-with-tabs.out.md
new file mode 100644
index 00000000000..a4dad886d78
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-indented-code-block-with-tabs.out.md
@@ -0,0 +1,4 @@
+- [ ] a
+  ```
+  	x
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-nested-item-tab-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-nested-item-tab-indented.out.md
new file mode 100644
index 00000000000..b5c0717d885
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/task-list-nested-item-tab-indented.out.md
@@ -0,0 +1,2 @@
+- [ ] a
+  - [ ] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/helpers.ts b/packages/web-pkg/tests/unit/editor/strategies/helpers.ts
index 86d4459a20c..79c1e058966 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/helpers.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/helpers.ts
@@ -46,7 +46,11 @@ export function load(markdown: string): LoadedMarkdown {
   return { editor, serialized: strategy.serialize(editor.state.doc) }
 }
 
-export function expectStableRoundtrip(markdown: string): LoadedMarkdown {
+export interface StableRoundtrip extends LoadedMarkdown {
+  reserialized: string
+}
+
+export function expectStableRoundtrip(markdown: string): StableRoundtrip {
   const { editor, serialized } = load(markdown)
   expect(() => editor.state.doc.check()).not.toThrow()
 
@@ -54,5 +58,5 @@ export function expectStableRoundtrip(markdown: string): LoadedMarkdown {
   expect(() => reloaded.editor.state.doc.check()).not.toThrow()
   expect(toJSON(reloaded.editor)).toEqual(toJSON(editor))
 
-  return { editor, serialized }
+  return { editor, serialized, reserialized: reloaded.serialized }
 }
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
index 82e33984044..18e95b7109a 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
@@ -11,30 +11,57 @@ vi.mock('vue3-gettext', () => ({
 
 const fixturesDir = join(import.meta.dirname, 'fixtures', 'markdown')
 
-function loadFixtures(dir: string): [string, string][] {
-  return readdirSync(dir)
-    .filter((name) => name.endsWith('.md'))
-    .sort()
-    .map((name) => {
-      const markdown = readFileSync(join(dir, name), 'utf8')
-      // an empty fixture would pass silently
-      if (!markdown.trim()) {
-        throw new Error(`Empty fixture ${name}`)
+interface Fixture {
+  name: string
+  markdown: string
+  expected: string
+}
+
+const outputSuffix = '.out.md'
+
+function readFixture(dir: string, name: string): string {
+  const content = readFileSync(join(dir, name), 'utf8')
+  // an empty fixture would pass silently
+  if (!content.trim()) {
+    throw new Error(`Empty fixture ${name}`)
+  }
+  return content
+}
+
+function trimFinalNewline(markdown: string): string {
+  return markdown.endsWith('\n') ? markdown.slice(0, -1) : markdown
+}
+
+/**
+ * Loads the `<name>.md` fixtures. The editor must save a fixture unchanged, or as
+ * `<name>.out.md` where that exists. A single final newline is ignored.
+ */
+function loadFixtures(dir: string): Fixture[] {
+  const names = readdirSync(dir).sort()
+  names
+    .filter((name) => name.endsWith(outputSuffix))
+    .forEach((name) => {
+      if (!names.includes(name.replace(outputSuffix, '.md'))) {
+        throw new Error(`Output ${name} without fixture`)
       }
-      return [name, markdown]
     })
-}
 
-function save(markdown: string): string {
-  return expectStableRoundtrip(markdown).serialized
+  return names
+    .filter((name) => name.endsWith('.md') && !name.endsWith(outputSuffix))
+    .map((name) => {
+      const markdown = readFixture(dir, name)
+      const output = name.replace(/\.md$/, outputSuffix)
+      const expected = names.includes(output) ? readFixture(dir, output) : markdown
+      return { name, markdown, expected }
+    })
 }
 
 // Reference renderer for both the original and the saved markdown. The list tokenizer
-// makes marked read a lone `- ` as an empty item, as CommonMark does. Since the editor
-// uses the same tokenizer, empty items need inline tests with exact output.
-// The render check is weak where marked differs from the editor, which needs inline
-// tests as well: marked reads letter or roman lists and frontmatter as paragraphs,
-// expands tabs in list items to spaces, and normalize() folds nbsp into a space.
+// makes marked read a lone `- ` as an empty item, as CommonMark does.
+// The render check is weak where marked differs from the editor, which the exact
+// output check covers: marked reads letter or roman lists and frontmatter as
+// paragraphs, expands tabs in list items to spaces, and normalize() folds nbsp into
+// a space.
 const marked = new Marked()
 registerMarkdownListTokenizer(marked)
 
@@ -97,11 +124,12 @@ function render(markdown: string): string {
   return normalize(marked.parse(markdown) as string)
 }
 
-function expectRoundtrip(markdown: string) {
-  const saved = save(markdown)
+function expectSaved({ markdown, expected }: Fixture): string {
+  const { serialized, reserialized } = expectStableRoundtrip(markdown)
 
-  expect(render(saved), saved).toBe(render(markdown))
-  expect(save(saved)).toBe(saved)
+  expect(trimFinalNewline(serialized)).toBe(trimFinalNewline(expected))
+  expect(reserialized).toBe(serialized)
+  return serialized
 }
 
 describe('markdown fixture roundtrip', () => {
@@ -113,7 +141,9 @@ describe('markdown fixture roundtrip', () => {
     destroyEditors()
   })
 
-  it.each(loadFixtures(fixturesDir))('keeps %s', (_, markdown) => {
-    expectRoundtrip(markdown)
+  it.each(loadFixtures(fixturesDir))('keeps $name', (fixture) => {
+    const saved = expectSaved(fixture)
+
+    expect(render(saved), saved).toBe(render(fixture.markdown))
   })
 })

From 81aee3a350186175898e6a0315a53f8739b857cf Mon Sep 17 00:00:00 2001
From: Jannik Stehle <j.stehle@opencloud.eu>
Date: Fri, 9 Oct 2026 11:21:23 +0200
Subject: [PATCH 6/6] test(web-pkg): move inline markdown round trip tests to
 fixtures

---
 .../markdown/list-empty-first-item.md         |   2 +
 .../markdown/list-empty-first-item.out.md     |   2 +
 .../markdown/list-empty-last-ordered-item.md  |   2 +
 .../list-empty-last-ordered-item.out.md       |   2 +
 .../code-block-tilde-fence-indented.md        |   4 +
 .../code-block-tilde-fence-indented.out.md    |   4 +
 ...mpty-sub-item-bare-marker-with-children.md |   4 +
 ...-sub-item-bare-marker-with-children.out.md |   4 +
 .../list-empty-sub-item-with-siblings.md      |   9 +
 .../list-empty-sub-item-with-siblings.out.md  |   9 +
 .../list-empty-sub-item-with-sub-list.md      |   3 +
 .../list-empty-sub-item-with-sub-list.out.md  |   3 +
 .../unlike-marked/list-empty-sub-item.md      |   3 +
 .../unlike-marked/list-empty-sub-item.out.md  |   3 +
 .../list-ordered-start-number-0.md            |   2 +
 .../list-ordered-start-number-0.out.md        |   2 +
 .../list-ordered-task-syntax-loose.md         |   3 +
 .../list-ordered-task-syntax-loose.out.md     |   2 +
 ...d-task-syntax-multi-paragraph-last-item.md |   4 +
 ...sk-syntax-multi-paragraph-last-item.out.md |   4 +
 ...ist-ordered-task-syntax-multi-paragraph.md |   4 +
 ...ordered-task-syntax-multi-paragraph.out.md |   4 +
 .../list-ordered-task-syntax-nested.md        |   3 +
 .../list-ordered-task-syntax-nested.out.md    |   3 +
 .../list-ordered-task-syntax-sub-list.md      |   5 +
 .../list-ordered-task-syntax-sub-list.out.md  |   5 +
 .../list-ordered-task-syntax-tight.md         |   2 +
 .../list-ordered-task-syntax-tight.out.md     |   2 +
 ...e-block-under-indented-after-blank-line.md |   5 +
 ...ock-under-indented-after-blank-line.out.md |   4 +
 ...-block-under-indented-after-nested-item.md |   5 +
 ...ck-under-indented-after-nested-item.out.md |   5 +
 .../task-list-code-block-under-indented.md    |   5 +
 ...task-list-code-block-under-indented.out.md |   5 +
 .../task-list-heading-under-indented.md       |   2 +
 .../task-list-heading-under-indented.out.md   |   2 +
 .../task-list-line-tab-indented.md            |   2 +
 .../task-list-line-tab-indented.out.md        |   3 +
 .../task-list-lines-under-indented.md         |   3 +
 .../task-list-lines-under-indented.out.md     |   4 +
 ...t-paragraph-tab-indented-in-nested-item.md |   4 +
 ...ragraph-tab-indented-in-nested-item.out.md |   5 +
 ...agraph-under-indented-after-nested-item.md |   5 +
 ...ph-under-indented-after-nested-item.out.md |   5 +
 .../task-list-paragraph-under-indented.md     |   3 +
 .../task-list-paragraph-under-indented.out.md |   3 +
 .../strategies/markdownFixtures.spec.ts       |   9 +
 .../strategies/markdownListRoundtrip.spec.ts  | 161 +-----------------
 .../markdownParagraphRoundtrip.spec.ts        |  77 ---------
 .../markdownTaskListRoundtrip.spec.ts         | 145 ----------------
 50 files changed, 179 insertions(+), 382 deletions(-)
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-ordered-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-ordered-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/code-block-tilde-fence-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/code-block-tilde-fence-indented.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-bare-marker-with-children.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-bare-marker-with-children.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-siblings.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-siblings.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-sub-list.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-sub-list.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-start-number-0.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-start-number-0.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-loose.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-loose.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph-last-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph-last-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-nested.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-nested.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-sub-list.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-sub-list.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-tight.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-tight.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-blank-line.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-blank-line.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-nested-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-nested-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-heading-under-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-heading-under-indented.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-line-tab-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-line-tab-indented.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-lines-under-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-lines-under-indented.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-tab-indented-in-nested-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-tab-indented-in-nested-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented-after-nested-item.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented-after-nested-item.out.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented.md
 create mode 100644 packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented.out.md
 delete mode 100644 packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts

diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-item.md
new file mode 100644
index 00000000000..49e6a9c6cef
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-item.md
@@ -0,0 +1,2 @@
+- 
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-item.out.md
new file mode 100644
index 00000000000..1e21e4778f4
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-first-item.out.md
@@ -0,0 +1,2 @@
+-
+- b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-ordered-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-ordered-item.md
new file mode 100644
index 00000000000..5c2840a8aeb
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-ordered-item.md
@@ -0,0 +1,2 @@
+1. a
+2. 
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-ordered-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-ordered-item.out.md
new file mode 100644
index 00000000000..a0b37d69276
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/list-empty-last-ordered-item.out.md
@@ -0,0 +1,2 @@
+1. a
+2.
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/code-block-tilde-fence-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/code-block-tilde-fence-indented.md
new file mode 100644
index 00000000000..2a5c11e10d0
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/code-block-tilde-fence-indented.md
@@ -0,0 +1,4 @@
+  ~~~
+   code
+    x
+  ~~~
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/code-block-tilde-fence-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/code-block-tilde-fence-indented.out.md
new file mode 100644
index 00000000000..d60492e9769
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/code-block-tilde-fence-indented.out.md
@@ -0,0 +1,4 @@
+```
+ code
+  x
+```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-bare-marker-with-children.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-bare-marker-with-children.md
new file mode 100644
index 00000000000..5cc7ed929e1
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-bare-marker-with-children.md
@@ -0,0 +1,4 @@
+- Parent
+  -
+    - x
+  - c
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-bare-marker-with-children.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-bare-marker-with-children.out.md
new file mode 100644
index 00000000000..69880165d31
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-bare-marker-with-children.out.md
@@ -0,0 +1,4 @@
+- Parent
+  - &nbsp;
+    - x
+  - c
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-siblings.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-siblings.md
new file mode 100644
index 00000000000..3c74d2cddd8
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-siblings.md
@@ -0,0 +1,9 @@
+- Parent
+  - 
+  - c
+- Next
+
+1. Parent
+   - 
+   - c
+2. Next
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-siblings.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-siblings.out.md
new file mode 100644
index 00000000000..52848f45658
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-siblings.out.md
@@ -0,0 +1,9 @@
+- Parent
+  - &nbsp;
+  - c
+- Next
+
+1. Parent
+   - &nbsp;
+   - c
+2. Next
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-sub-list.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-sub-list.md
new file mode 100644
index 00000000000..1ec7b2d7042
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-sub-list.md
@@ -0,0 +1,3 @@
+- a
+  - 
+    - x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-sub-list.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-sub-list.out.md
new file mode 100644
index 00000000000..5e5449aaa7a
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item-with-sub-list.out.md
@@ -0,0 +1,3 @@
+- a
+  - &nbsp;
+    - x
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item.md
new file mode 100644
index 00000000000..f00655dda55
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item.md
@@ -0,0 +1,3 @@
+- Parent
+  - 
+- Next
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item.out.md
new file mode 100644
index 00000000000..3c2e58c1054
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-empty-sub-item.out.md
@@ -0,0 +1,3 @@
+- Parent
+  - &nbsp;
+- Next
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-start-number-0.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-start-number-0.md
new file mode 100644
index 00000000000..525dccee1f5
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-start-number-0.md
@@ -0,0 +1,2 @@
+0. a
+1. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-start-number-0.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-start-number-0.out.md
new file mode 100644
index 00000000000..2af9cc001db
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-start-number-0.out.md
@@ -0,0 +1,2 @@
+1. a
+2. b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-loose.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-loose.md
new file mode 100644
index 00000000000..535f4e91183
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-loose.md
@@ -0,0 +1,3 @@
+1. [ ] a
+
+2. [x] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-loose.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-loose.out.md
new file mode 100644
index 00000000000..5e2864b4e44
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-loose.out.md
@@ -0,0 +1,2 @@
+1. \[ \] a
+2. \[x\] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph-last-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph-last-item.md
new file mode 100644
index 00000000000..69c570d3151
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph-last-item.md
@@ -0,0 +1,4 @@
+2. [x] b
+3. [ ] a
+
+   more
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph-last-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph-last-item.out.md
new file mode 100644
index 00000000000..3ed3d3bf360
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph-last-item.out.md
@@ -0,0 +1,4 @@
+2. \[x\] b
+3. \[ \] a
+
+   more
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph.md
new file mode 100644
index 00000000000..e9c2f14948a
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph.md
@@ -0,0 +1,4 @@
+1. [ ] a
+
+   more
+2. [x] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph.out.md
new file mode 100644
index 00000000000..d7bc8ba72e7
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-multi-paragraph.out.md
@@ -0,0 +1,4 @@
+1. \[ \] a
+
+   more
+2. \[x\] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-nested.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-nested.md
new file mode 100644
index 00000000000..6a43c9475e1
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-nested.md
@@ -0,0 +1,3 @@
+- c
+  1. [ ] a
+  2. [x] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-nested.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-nested.out.md
new file mode 100644
index 00000000000..803a7545399
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-nested.out.md
@@ -0,0 +1,3 @@
+- c
+  1. \[ \] a
+  2. \[x\] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-sub-list.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-sub-list.md
new file mode 100644
index 00000000000..e9e1d0076ac
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-sub-list.md
@@ -0,0 +1,5 @@
+1. [ ] a
+   - sub
+
+   more
+2. [x] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-sub-list.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-sub-list.out.md
new file mode 100644
index 00000000000..cd457c301f5
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-sub-list.out.md
@@ -0,0 +1,5 @@
+1. \[ \] a
+   - sub
+
+   more
+2. \[x\] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-tight.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-tight.md
new file mode 100644
index 00000000000..e9062c8adf0
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-tight.md
@@ -0,0 +1,2 @@
+1. [ ] a
+2. [x] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-tight.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-tight.out.md
new file mode 100644
index 00000000000..5e2864b4e44
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/list-ordered-task-syntax-tight.out.md
@@ -0,0 +1,2 @@
+1. \[ \] a
+2. \[x\] b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-blank-line.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-blank-line.md
new file mode 100644
index 00000000000..56c753b3713
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-blank-line.md
@@ -0,0 +1,5 @@
+- [ ] a
+
+ ~~~
+ code
+ ~~~
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-blank-line.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-blank-line.out.md
new file mode 100644
index 00000000000..e36e9800ac8
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-blank-line.out.md
@@ -0,0 +1,4 @@
+- [ ] a
+  ```
+  code
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-nested-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-nested-item.md
new file mode 100644
index 00000000000..e5e01592b3c
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-nested-item.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - [ ] b
+ ```
+ code
+ ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-nested-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-nested-item.out.md
new file mode 100644
index 00000000000..2bdc115e2dd
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented-after-nested-item.out.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - [ ] b
+  ```
+  code
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented.md
new file mode 100644
index 00000000000..b05860727ae
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented.md
@@ -0,0 +1,5 @@
+- [ ] a
+ ```
+ code
+   x
+ ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented.out.md
new file mode 100644
index 00000000000..427b8602212
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-code-block-under-indented.out.md
@@ -0,0 +1,5 @@
+- [ ] a
+  ```
+  code
+    x
+  ```
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-heading-under-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-heading-under-indented.md
new file mode 100644
index 00000000000..e67d0633653
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-heading-under-indented.md
@@ -0,0 +1,2 @@
+- [ ] a
+ # h
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-heading-under-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-heading-under-indented.out.md
new file mode 100644
index 00000000000..f54d938ac41
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-heading-under-indented.out.md
@@ -0,0 +1,2 @@
+- [ ] a
+  # h
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-line-tab-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-line-tab-indented.md
new file mode 100644
index 00000000000..0473d958e86
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-line-tab-indented.md
@@ -0,0 +1,2 @@
+- [ ] a
+	b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-line-tab-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-line-tab-indented.out.md
new file mode 100644
index 00000000000..98eb88da72b
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-line-tab-indented.out.md
@@ -0,0 +1,3 @@
+- [ ] a
+
+  b
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-lines-under-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-lines-under-indented.md
new file mode 100644
index 00000000000..15d6c1e78b2
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-lines-under-indented.md
@@ -0,0 +1,3 @@
+- [ ] a
+ b
+ c
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-lines-under-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-lines-under-indented.out.md
new file mode 100644
index 00000000000..ad33055278c
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-lines-under-indented.out.md
@@ -0,0 +1,4 @@
+- [ ] a
+
+  b
+  c
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-tab-indented-in-nested-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-tab-indented-in-nested-item.md
new file mode 100644
index 00000000000..674d32021a3
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-tab-indented-in-nested-item.md
@@ -0,0 +1,4 @@
+- [ ] a
+	- [ ] b
+		c
+	- [ ] d
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-tab-indented-in-nested-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-tab-indented-in-nested-item.out.md
new file mode 100644
index 00000000000..5631b394adc
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-tab-indented-in-nested-item.out.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - [ ] b
+  
+    c
+  - [ ] d
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented-after-nested-item.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented-after-nested-item.md
new file mode 100644
index 00000000000..c3404d2a42c
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented-after-nested-item.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - [ ] b
+
+   x c
+- [ ] d
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented-after-nested-item.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented-after-nested-item.out.md
new file mode 100644
index 00000000000..8ee06c78559
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented-after-nested-item.out.md
@@ -0,0 +1,5 @@
+- [ ] a
+  - [ ] b
+  
+    x c
+- [ ] d
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented.md
new file mode 100644
index 00000000000..65f6f83b37e
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented.md
@@ -0,0 +1,3 @@
+- [ ] task
+
+ x paragraph
diff --git a/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented.out.md b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented.out.md
new file mode 100644
index 00000000000..674969b80cb
--- /dev/null
+++ b/packages/web-pkg/tests/unit/editor/strategies/fixtures/markdown/unlike-marked/task-list-paragraph-under-indented.out.md
@@ -0,0 +1,3 @@
+- [ ] task
+
+  x paragraph
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
index 18e95b7109a..3aeb4a9549c 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownFixtures.spec.ts
@@ -10,6 +10,11 @@ vi.mock('vue3-gettext', () => ({
 }))
 
 const fixturesDir = join(import.meta.dirname, 'fixtures', 'markdown')
+// The editor reads these differently from marked on purpose, so they skip the render
+// check: an empty item below text, task syntax in ordered lists, under or tab
+// indented content below a task item, an indented tilde fence (marked keeps its
+// indentation) and a list starting at 0 (the editor starts it at 1).
+const unlikeMarkedDir = join(fixturesDir, 'unlike-marked')
 
 interface Fixture {
   name: string
@@ -146,4 +151,8 @@ describe('markdown fixture roundtrip', () => {
 
     expect(render(saved), saved).toBe(render(fixture.markdown))
   })
+
+  it.each(loadFixtures(unlikeMarkedDir))('keeps unlike-marked/$name', (fixture) => {
+    expectSaved(fixture)
+  })
 })
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
index e4762032c54..75b94c23904 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownListRoundtrip.spec.ts
@@ -1,5 +1,5 @@
 import { createTestingPinia } from '@opencloud-eu/web-test-helpers'
-import { toJSON, load, expectStableRoundtrip, destroyEditors } from './helpers'
+import { load, destroyEditors } from './helpers'
 
 vi.mock('vue3-gettext', () => ({
   useGettext: () => ({ $gettext: (text: string) => text })
@@ -15,170 +15,11 @@ describe('markdown list roundtrip', () => {
   })
 
   describe('list items', () => {
-    it('keeps the parent of an empty sub item', () => {
-      const { editor, serialized } = expectStableRoundtrip('- Parent\n  - \n- Next\n')
-
-      expect(toJSON(editor).content[0]).toMatchObject({
-        type: 'bulletList',
-        content: [
-          {
-            type: 'listItem',
-            content: [
-              { type: 'paragraph', content: [{ text: 'Parent' }] },
-              { type: 'bulletList', content: [{ type: 'listItem' }] }
-            ]
-          },
-          { type: 'listItem', content: [{ type: 'paragraph', content: [{ text: 'Next' }] }] }
-        ]
-      })
-      expect(serialized).toBe('- Parent\n  - &nbsp;\n- Next')
-    })
-
-    it.each(['- Parent\n  - \n  - c\n- Next\n', '1. Parent\n   - \n   - c\n2. Next\n'])(
-      'keeps an empty sub item and its siblings in one list for %j',
-      (markdown) => {
-        const { editor } = expectStableRoundtrip(markdown)
-
-        expect(toJSON(editor).content[0].content[0].content).toMatchObject([
-          { type: 'paragraph', content: [{ text: 'Parent' }] },
-          {
-            type: 'bulletList',
-            content: [
-              { type: 'listItem', content: [{ type: 'paragraph' }] },
-              { type: 'listItem', content: [{ type: 'paragraph', content: [{ text: 'c' }] }] }
-            ]
-          }
-        ])
-      }
-    )
-
-    it('keeps the children of an empty sub item', () => {
-      const { editor } = expectStableRoundtrip('- Parent\n  -\n    - x\n  - c\n')
-
-      expect(toJSON(editor).content[0].content[0].content[1]).toMatchObject({
-        type: 'bulletList',
-        content: [
-          {
-            type: 'listItem',
-            content: [
-              { type: 'paragraph' },
-              { type: 'bulletList', content: [{ content: [{ content: [{ text: 'x' }] }] }] }
-            ]
-          },
-          { type: 'listItem', content: [{ type: 'paragraph', content: [{ text: 'c' }] }] }
-        ]
-      })
-    })
-
-    it.each([
-      '- # Title\n- b\n',
-      '1. # Title\n2. b\n',
-      '-\n  # Title\n- b\n',
-      'a. \n   # Title\nb. y\n'
-    ])('keeps the heading in a list item of %j', (markdown) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(toJSON(editor).content[0].content[0]).toMatchObject({
-        type: 'listItem',
-        content: [{ type: 'paragraph' }, { type: 'heading', content: [{ text: 'Title' }] }]
-      })
-    })
-
-    it.each(['- # Title\n  text\n', '1. ```\n   x\n   ```\n   text\n'])(
-      'wraps text after a block of %j into a paragraph',
-      (markdown) => {
-        const { editor } = expectStableRoundtrip(markdown)
-
-        expect(toJSON(editor).content[0].content[0].content.at(-1)).toMatchObject({
-          type: 'paragraph',
-          content: [{ text: 'text' }]
-        })
-      }
-    )
-
-    it.each([
-      ['- \n', '-'],
-      ['- \n- b\n', '-\n- b'],
-      ['1. \n2. b\n', '1.\n2. b'],
-      ['- a\n- \n- b\n', '- a\n-\n- b'],
-      ['1. a\n2. \n', '1. a\n2.'],
-      ['- \n  - x\n', '- &nbsp;\n  - x'],
-      ['> - \n', '> -'],
-      ['- a\n  - b\n  - \n', '- a\n  - b\n  -'],
-      ['- a\n  1. \n  2. b\n', '- a\n  1. &nbsp;\n  2. b'],
-      ['- a\n  - \n    - x\n', '- a\n  - &nbsp;\n    - x']
-    ])('keeps the empty item in %j', (markdown, expected) => {
-      const { serialized } = expectStableRoundtrip(markdown)
-
-      expect(serialized).toBe(expected)
-    })
-
     it('parses many lists starting with an empty item in linear time', () => {
       const start = performance.now()
       load('- \n- x\n# h\n'.repeat(30) + '- \n- x\n\n1. \n2. y\n\n'.repeat(30))
 
       expect(performance.now() - start).toBeLessThan(1000)
     })
-
-    it('adds an empty paragraph when a list item starts with another block', () => {
-      const { editor } = expectStableRoundtrip('- > quote\n- b\n')
-
-      expect(toJSON(editor).content[0].content[0]).toMatchObject({
-        type: 'listItem',
-        content: [{ type: 'paragraph' }, { type: 'blockquote' }]
-      })
-    })
-  })
-
-  describe('ordered lists', () => {
-    it.each([
-      ['a tight', '1. [ ] a\n2. [x] b\n'],
-      ['a loose', '1. [ ] a\n\n2. [x] b\n'],
-      ['a nested', '- c\n  1. [ ] a\n  2. [x] b\n'],
-      ['a multi paragraph', '1. [ ] a\n\n   more\n2. [x] b\n'],
-      ['a multi paragraph last item of a', '2. [x] b\n3. [ ] a\n\n   more\n'],
-      ['a sub list item of a', '1. [ ] a\n   - sub\n\n   more\n2. [x] b\n']
-    ])('keeps the task syntax of %s list as text', (_, markdown) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(editor.getText()).toContain('[ ] a')
-      expect(editor.getText()).toContain('[x] b')
-    })
-
-    it('starts a list numbered from 0 at 1', () => {
-      const { editor } = expectStableRoundtrip('0. a\n1. b\n')
-
-      expect(toJSON(editor).content[0].attrs.start).toBe(1)
-    })
-
-    it.each([
-      ['a', 'a. one\nb. two'],
-      ['A', 'A. one\nB. two'],
-      ['i', 'i. one\nii. two'],
-      ['I', 'I. one\nII. two']
-    ])('keeps a list of type %j', (type, markdown) => {
-      const { editor, serialized } = expectStableRoundtrip(`${markdown}\n`)
-
-      expect(toJSON(editor).content[0]).toMatchObject({
-        type: 'orderedList',
-        attrs: { type },
-        content: [{ type: 'listItem' }, { type: 'listItem' }]
-      })
-      expect(serialized).toBe(markdown)
-    })
-
-    it('keeps an empty item of a letter list', () => {
-      const { editor } = expectStableRoundtrip('a. one\nb. \nc. three\n')
-
-      expect(toJSON(editor).content[0]).toMatchObject({
-        type: 'orderedList',
-        attrs: { type: 'a' },
-        content: [
-          { type: 'listItem', content: [{ type: 'paragraph', content: [{ text: 'one' }] }] },
-          { type: 'listItem', content: [{ type: 'paragraph' }] },
-          { type: 'listItem', content: [{ type: 'paragraph', content: [{ text: 'three' }] }] }
-        ]
-      })
-    })
   })
 })
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
index 8bee1aba0f5..599187e4ce3 100644
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
+++ b/packages/web-pkg/tests/unit/editor/strategies/markdownParagraphRoundtrip.spec.ts
@@ -83,38 +83,6 @@ describe('markdown paragraph roundtrip', () => {
       )
     })
 
-    it('leaves block syntax in table cells as it is', () => {
-      const { serialized } = expectStableRoundtrip('| a | b |\n|---|---|\n| - | 1. x |\n')
-
-      expect(serialized).toContain('| -   | 1. x |')
-    })
-
-    it('keeps an alert marker in a blockquote', () => {
-      const { serialized } = expectStableRoundtrip('> [!NOTE]\n> hint\n')
-
-      expect(serialized).toBe('> [!NOTE]\n> hint')
-    })
-
-    it.each(['[!NOTE](x) text', '[!NOTE] text'])('keeps %j in a blockquote as text', (text) => {
-      const { editor, serialized } = expectStableRoundtrip(`> ${text.replace(/[[\]]/g, '\\$&')}\n`)
-
-      expect(toJSON(editor).content[0].content[0].content).toEqual([{ type: 'text', text }])
-      expect(serialized).toBe(`> ${text.replace(/[[\]]/g, '\\$&')}`)
-    })
-
-    it.each([
-      [' x paragraph\n', [{ type: 'text', text: 'x paragraph' }]],
-      ['a\n  b\n', [{ type: 'text', text: 'a\nb' }]],
-      [
-        'a  \n   b\n',
-        [{ type: 'text', text: 'a' }, { type: 'hardBreak' }, { type: 'text', text: 'b' }]
-      ]
-    ])('drops the indentation of the lines in %j', (markdown, content) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(toJSON(editor).content).toEqual([{ type: 'paragraph', content }])
-    })
-
     it('keeps the indentation in a code span at the start of a line', () => {
       const { editor } = load('a\n `  b`\n')
 
@@ -124,49 +92,4 @@ describe('markdown paragraph roundtrip', () => {
       ])
     })
   })
-
-  describe('list items', () => {
-    it('drops the indentation of a continuation line in a tight item', () => {
-      const { editor } = expectStableRoundtrip('1. a\n  b\n')
-
-      expect(toJSON(editor).content[0].content[0].content[0].content).toEqual([
-        { type: 'text', text: 'a\nb' }
-      ])
-    })
-
-    it.each([
-      ['B.\u00a0b', 'B\\.\u00a0b'],
-      ['2.\u00a0b', '2\\.\u00a0b'],
-      ['-\u00a0b', '\\-\u00a0b'],
-      ['#\u00a0b', '\\#\u00a0b']
-    ])('keeps %j after a soft line break in an ordered list item', (line, escaped) => {
-      const { editor, serialized } = expectStableRoundtrip(`1. a\n   ${escaped}\n`)
-
-      expect(serialized).toBe(`1. a\n${escaped}`)
-
-      expect(toJSON(editor).content).toEqual([
-        {
-          type: 'orderedList',
-          attrs: { start: 1, type: null },
-          content: [
-            {
-              type: 'listItem',
-              content: [{ type: 'paragraph', content: [{ type: 'text', text: `a\n${line}` }] }]
-            }
-          ]
-        }
-      ])
-    })
-  })
-
-  describe('task lists', () => {
-    it('drops the indentation of a tab indented paragraph in a task item', () => {
-      const { editor } = expectStableRoundtrip('- [ ] a\n\t- [ ] b\n\t\tc\n\t- [ ] d\n')
-
-      expect(toJSON(editor).content[0].content[0].content[1].content[0].content[1]).toEqual({
-        type: 'paragraph',
-        content: [{ type: 'text', text: 'c' }]
-      })
-    })
-  })
 })
diff --git a/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts b/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts
deleted file mode 100644
index 0fe7c9ed558..00000000000
--- a/packages/web-pkg/tests/unit/editor/strategies/markdownTaskListRoundtrip.spec.ts
+++ /dev/null
@@ -1,145 +0,0 @@
-import type { JSONContent } from '@tiptap/core'
-import { createTestingPinia } from '@opencloud-eu/web-test-helpers'
-import { toJSON, expectStableRoundtrip, destroyEditors } from './helpers'
-
-vi.mock('vue3-gettext', () => ({
-  useGettext: () => ({ $gettext: (text: string) => text })
-}))
-
-function codeBlockTexts(node: JSONContent): string[] {
-  if (node.type === 'codeBlock') {
-    return [node.content?.map(({ text }) => text).join('') ?? '']
-  }
-  return (node.content ?? []).flatMap(codeBlockTexts)
-}
-
-describe('markdown task list and code block roundtrip', () => {
-  beforeEach(() => {
-    createTestingPinia()
-  })
-
-  afterEach(() => {
-    destroyEditors()
-  })
-
-  describe('code blocks', () => {
-    // marked keeps the indentation of tilde fenced code, so no fixture
-    it('keeps the code of an indented tilde fence', () => {
-      const { editor } = expectStableRoundtrip('  ~~~\n   code\n    x\n  ~~~\n')
-
-      expect(codeBlockTexts(toJSON(editor))).toEqual([' code\n  x'])
-    })
-  })
-
-  describe('task lists', () => {
-    it('keeps the first letter of an under indented paragraph after a task list', () => {
-      const { editor } = expectStableRoundtrip('- [ ] task\n\n x paragraph\n')
-
-      expect(toJSON(editor).content[0].content[0].content[1]).toEqual({
-        type: 'paragraph',
-        content: [{ type: 'text', text: 'x paragraph' }]
-      })
-    })
-
-    it('keeps an under indented line directly below a task item in the item', () => {
-      const { editor } = expectStableRoundtrip('- [ ] a\n b\n c\n')
-
-      expect(toJSON(editor).content).toMatchObject([
-        {
-          type: 'taskList',
-          content: [
-            {
-              type: 'taskItem',
-              content: [
-                { type: 'paragraph', content: [{ text: 'a' }] },
-                { type: 'paragraph', content: [{ text: 'b\nc' }] }
-              ]
-            }
-          ]
-        }
-      ])
-    })
-
-    it('keeps an under indented heading below a task item', () => {
-      const { editor } = expectStableRoundtrip('- [ ] a\n # h\n')
-
-      expect(toJSON(editor).content[0].content[0].content[1]).toMatchObject({
-        type: 'heading',
-        content: [{ text: 'h' }]
-      })
-    })
-
-    it('keeps a tab indented line as a paragraph in the task item', () => {
-      const { editor } = expectStableRoundtrip('- [ ] a\n\tb\n')
-
-      expect(toJSON(editor).content).toHaveLength(1)
-      expect(toJSON(editor).content[0].content[0].content[1]).toMatchObject({ type: 'paragraph' })
-    })
-
-    // The fixtures cannot guard these: marked expands tabs in list items to spaces
-    it.each([
-      ['directly below the item', '- [ ] run\n  ```make\n  build:\n  \tgo build\n  ```\n'],
-      ['after a blank line', '- [ ] run\n\n  ```make\n  build:\n  \tgo build\n  ```\n']
-    ])('keeps tabs in a code block in a task item %s', (_, markdown) => {
-      const { editor, serialized } = expectStableRoundtrip(markdown)
-
-      expect(toJSON(editor).content[0].content[0].content[1]).toMatchObject({
-        type: 'codeBlock',
-        content: [{ text: 'build:\n\tgo build' }]
-      })
-      expect(serialized).toContain('\n  \tgo build\n')
-    })
-
-    it.each([
-      ['after a nested item', '- [ ] a\n  - [ ] b\n  ```\n  \tx\n  ```\n', '\tx'],
-      [
-        'in a tilde fence after a nested item',
-        '- [ ] a\n  - [ ] b\n\n  ~~~\n  \tx\n  ~~~\n',
-        '\tx'
-      ],
-      [
-        'three levels deep',
-        '- [ ] a\n  - [ ] b\n    - [ ] c\n\n    ```\n    \tx\n    ```\n',
-        '\tx'
-      ],
-      [
-        'with task item syntax',
-        '- [ ] a\n  ```md\n    - [ ] nested example\n  \tx\n  ```\n',
-        '  - [ ] nested example\n\tx'
-      ],
-      [
-        'with a tab indented fence',
-        '- [ ] a\n\t- [ ] b\n\t\t```\n\t\tcode\n\t\t\tindented\n\t\t```\n',
-        'code\n\tindented'
-      ],
-      ['in an indented code block', '- [ ] a\n\n      \tx\n', '\tx'],
-      ['in a tab indented code block', '- [ ] a\n\n  \t\tx\n', '\tx'],
-      [
-        'in an indented code block after a nested item',
-        '- [ ] a\n  - [ ] b\n\n        \tx\n',
-        '\tx'
-      ]
-    ])('keeps tabs in a code block in a task item %s', (_, markdown, code) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(codeBlockTexts(toJSON(editor))).toEqual([code])
-    })
-
-    it.each([
-      ['directly below the item', '- [ ] a\n ```\n code\n   x\n ```\n', 'code\n  x'],
-      ['after a blank line', '- [ ] a\n\n ~~~\n code\n ~~~\n', 'code'],
-      ['after a nested item', '- [ ] a\n  - [ ] b\n ```\n code\n ```\n', 'code']
-    ])('keeps an under indented code block below a task item %s', (_, markdown, code) => {
-      const { editor } = expectStableRoundtrip(markdown)
-
-      expect(codeBlockTexts(toJSON(editor))).toEqual([code])
-    })
-
-    it('keeps the first letter of an under indented paragraph after a nested task item', () => {
-      const { editor } = expectStableRoundtrip('- [ ] a\n  - [ ] b\n\n   x c\n- [ ] d\n')
-
-      expect(editor.getText()).toContain('x c')
-      expect(toJSON(editor).content[0].content).toHaveLength(2)
-    })
-  })
-})