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test(mcp): cover captioned image inside a column round-trip (F5)

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A captioned image in a column is emitted via the imageToHtml helper, a
separate path from the top-level image case whose data-caption branch was
untested. Add a round-trip test with special chars (Tom & "Jerry") that
fails if the imageToHtml caption branch breaks.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
claude code agent 227
2026-06-29 01:43:18 +03:00
parent b02101b58a
commit 43af3dd5f1
1 changed files with 18 additions and 0 deletions
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18
packages/mcp/test/unit/roundtrip.test.mjs
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@@ -82,6 +82,24 @@ test("round-trip: image inside a column survives as an image node (not literal m
assert.ok(!JSON.stringify(out).includes("![pic]"), "image must not become literal markdown text");
});
test("round-trip: captioned image inside a column preserves its caption (imageToHtml branch)", async () => {
// A captioned image in a column is emitted via the imageToHtml helper (raw
// HTML container), a different path from the top-level image case. Special
// chars in the caption exercise attribute escaping on the way out and in.
const caption = 'Tom & "Jerry"';
const input = doc({
type: "columns",
content: [
{ type: "column", content: [{ type: "image", attrs: { src: "/api/files/a/p.png", alt: "pic", caption } }] },
{ type: "column", content: [para(text("right"))] },
],
});
const out = await roundtrip(input);
const imgs = findNodes(out, "image");
assert.equal(imgs.length, 1, "captioned image inside a column must survive");
assert.equal(imgs[0].attrs?.caption, caption, "caption (incl. special chars) must be preserved");
});
test("round-trip: blockquote inside a column survives as a blockquote node", async () => {
const input = doc({
type: "columns",