mirror of
https://github.com/nesquena/hermes-webui.git
synced 2026-06-04 16:10:24 +00:00
Frank Song
72 lines
3.1 KiB
Python
72 lines
3.1 KiB
Python
"""Regression coverage for #2823 large Markdown workspace previews."""
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from pathlib import Path
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WORKSPACE_JS = Path("static/workspace.js").read_text(encoding="utf-8")
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def _open_file_block() -> str:
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marker = "async function openFile(path){"
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start = WORKSPACE_JS.find(marker)
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assert start != -1, "openFile() not found in workspace.js"
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end = WORKSPACE_JS.find("\nfunction downloadFile", start)
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assert end != -1, "downloadFile() marker not found after openFile()"
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return WORKSPACE_JS[start:end]
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def _markdown_branch() -> str:
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block = _open_file_block()
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start = block.find("} else if(MD_EXTS.has(ext)){")
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assert start != -1, "Markdown preview branch not found in openFile()"
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end = block.find("} else if(HTML_EXTS.has(ext)){", start)
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assert end != -1, "HTML preview branch marker not found after Markdown branch"
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return block[start:end]
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def test_large_markdown_preview_limits_are_source_controlled():
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assert "MD_PREVIEW_RICH_RENDER_MAX_BYTES = 64 * 1024" in WORKSPACE_JS
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assert "MD_PREVIEW_RICH_RENDER_MAX_LINES = 1500" in WORKSPACE_JS
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assert "function shouldRenderMarkdownPreviewAsPlainText(content)" in WORKSPACE_JS
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def test_large_markdown_fallback_sets_raw_content_before_size_gate():
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branch = _markdown_branch()
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raw_pos = branch.find("_previewRawContent = data.content")
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gate_pos = branch.find("shouldRenderMarkdownPreviewAsPlainText(data.content)")
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fallback_pos = branch.find("showPreview('code')")
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rich_pos = branch.find("showPreview('md')")
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assert raw_pos != -1, "Markdown preview must retain raw text for Edit mode"
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assert gate_pos != -1, "Markdown preview must guard rich rendering by size/line count"
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assert fallback_pos != -1, "Large Markdown preview must fall back to plain text"
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assert rich_pos != -1, "Small Markdown preview must still use rich Markdown mode"
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assert raw_pos < gate_pos < fallback_pos < rich_pos
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def test_large_markdown_fallback_uses_code_view_without_rich_render_or_katex():
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branch = _markdown_branch()
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gate_pos = branch.find("if(shouldRenderMarkdownPreviewAsPlainText(data.content)){")
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fallback_end = branch.find("return;", gate_pos)
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assert gate_pos != -1 and fallback_end != -1, "Large Markdown fallback block not found"
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fallback = branch[gate_pos:fallback_end]
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compact = fallback.replace(" ", "")
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assert "$('previewCode').textContent=data.content" in compact
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assert "setStatus(" in fallback
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assert "renderMd(" not in fallback
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assert "renderKatexBlocks" not in fallback
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def test_small_markdown_still_renders_and_runs_katex_after_render():
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branch = _markdown_branch()
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fallback_end = branch.find("return;")
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assert fallback_end != -1, "Large Markdown fallback must return before rich rendering"
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rich = branch[fallback_end:]
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render_pos = rich.find("$('previewMd').innerHTML=renderMd(data.content)")
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katex_pos = rich.rfind("renderKatexBlocks")
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assert render_pos != -1, "Small Markdown files must still rich-render with renderMd()"
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assert katex_pos != -1, "Small Markdown file previews must still trigger KaTeX rendering"
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assert katex_pos > render_pos
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