---
title: Round-trip fixture
description: Deterministic Markdown and MDX used to compare source before and after visual editing.
---

# Round-trip fixture

Preserve **strong text**, _emphasis_, `inline code`, and [a relative link](/guides).

## Mixed direction

English before العربية بعد English. Keep the command left-to-right: `curl -H "Accept: text/markdown" https://docs.example.test/guide`.

## Structured content

| Field | Required | Meaning |
| --- | ---: | --- |
| `id` | yes | Stable identifier |
| `label` | no | Reader-facing name |

```json
{
  "id": "fixture-1",
  "enabled": true
}
```

<Callout title="Round-trip assertion">
The editor may normalize insignificant whitespace, but it must preserve meaning, links, code, and supported component attributes.
</Callout>

1. Import this file.
2. Change the sentence below in the visual editor.
3. Export it and compare the parsed document structure.

Fixture sentence: change only this sentence.