zjncs opened a new pull request, #5705:
URL: https://github.com/apache/rocketmq-dashboard/pull/5705
### What
`TextBlock` — the assistant prose of the AI transcript — had no test. This
adds `TextBlock.test.tsx` with 4 tests pinning the render contract its own
documentation calls out.
### Why
The component doc names the single most expensive thing a transcript frame
does (the full ReactMarkdown re-parse) and the repair step that makes model
output render at all. Nothing guarded either.
### What is pinned
- assistant prose renders as markdown;
- **the model-markdown repair is applied before rendering**: CommonMark
requires a space after an ATX heading marker and after a list bullet, and
models — especially when answering in Chinese — skip both, which without the
repair means **no** render, not a slightly-worse one: `##结论` stays a literal
paragraph and `-第一项` stays a literal line. The repaired render produces the
`h2` and the two list items;
- GitHub-flavoured markdown tables render (`remark-gfm`);
- the block opts into the `.ai-markdown` typographic contract, which carries
the whole styling and is themed through the `--ai-*` custom properties.
### Verification
- New tests on unmodified code: **4/4 green** (`npx vitest run`).
- Discriminating mutations on `TextBlock`, vitest result verified red each
time:
1. the `normalizeAiMarkdown` repair skipped — the repair test reddens;
2. the `remark-gfm` plugin dropped — the table test reddens;
3. the `ai-markdown` class dropped — the typography test reddens.
- Restored: 4/4 green. Test-only change; no product code touched.
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