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yeasy
657c0b25df
The reason 640 collapsed lists shipped green is that no test exercised real markdown->HTML rendering — the existing build_html_reader tests stub pandoc with a fake, covering TOC/mermaid plumbing but never the markdown parse. This feeds the exact bold-lead-in pattern through the real pandoc invocation the reader uses and asserts the list survives as <ul>. Proven both ways: passes with the extension, fails when it is removed.
86 lines
3.4 KiB
Go
86 lines
3.4 KiB
Go
"""Regression: the HTML reader must not collapse bold-lead-in lists into a paragraph.
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The book style writes a bold label immediately followed by a list, with no blank
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line between them:
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**触发分离的条件**：
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- 输入序列长度 > 某阈值
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Strict CommonMark (pandoc's default `-f markdown`) requires a blank line before a
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list, so it folds all three bullets into one <p>. build_html_reader.py therefore
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must pass `markdown+lists_without_preceding_blankline`. This test feeds that exact
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pattern through the *real* pandoc invocation the reader uses and asserts the list
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survives — the check that would have caught the 640 collapsed lists that shipped.
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"""
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import re
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import shutil
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import subprocess
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import unittest
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[1]
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READER = ROOT / "tools" / "build_html_reader.py"
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# The pattern the book uses everywhere: bold lead-in, then a list, no blank line.
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SAMPLE = "**触发分离的条件**：\n- 输入序列长度 > 某阈值\n- 输入序列未命中前缀缓存\n"
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def _reader_pandoc_format() -> str:
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"""Extract the pandoc `-f` value the reader uses, across every fork shape.
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Forks differ: an inline "-f", "markdown..." literal, a `reader = "markdown..."`
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variable, a `context="markdown..."` kwarg, or a PANDOC_MARKDOWN_READER constant
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living in tools/publication_sources.py (possibly as an implicitly-joined
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multiline string). Search both files and stitch adjacent string fragments.
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"""
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texts = [READER.read_text(encoding="utf-8")]
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sources = READER.parent / "publication_sources.py"
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if sources.is_file():
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texts.append(sources.read_text(encoding="utf-8"))
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for src in texts:
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for pat in (
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r'"-f",\s*"(markdown[^"]*)"',
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r'reader\s*=\s*"(markdown[^"]*)"',
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r'context="(markdown[^"]*)"',
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# constant, one or more adjacent "..." fragments (implicit join)
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r'PANDOC_MARKDOWN_READER\s*=\s*\(?\s*((?:"[^"]*"\s*)+)\)?',
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):
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m = re.search(pat, src)
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if m:
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raw = m.group(1)
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# collapse implicit string concatenation into one value
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return "".join(re.findall(r'"([^"]*)"', raw)) or raw
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raise AssertionError("could not find the reader's pandoc -f markdown format")
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class HtmlListRenderingTests(unittest.TestCase):
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def test_reader_declares_the_no_blank_line_list_extension(self):
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fmt = _reader_pandoc_format()
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self.assertIn(
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"lists_without_preceding_blankline",
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fmt,
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"build_html_reader.py must enable lists_without_preceding_blankline; "
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f"pandoc format is currently {fmt!r}. Without it, every bold-lead-in "
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"list in the book collapses into a paragraph in the shipped HTML.",
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)
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def test_bold_lead_in_list_renders_as_ul_under_real_pandoc(self):
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pandoc = shutil.which("pandoc")
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if pandoc is None:
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self.skipTest("pandoc not installed; CI installs it and runs this check")
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fmt = _reader_pandoc_format()
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out = subprocess.run(
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[pandoc, "-f", fmt, "-t", "html5"],
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input=SAMPLE,
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capture_output=True,
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text=True,
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check=True,
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).stdout
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self.assertIn("<ul>", out, f"list collapsed; pandoc -f {fmt} produced:\n{out}")
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self.assertEqual(out.count("<li>"), 2, f"expected 2 <li>; got:\n{out}")
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if __name__ == "__main__":
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unittest.main()
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