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f66643d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | """Tests for the self-healing Typst compile pipeline.
Layer 1 (markup sanitizer) outputs must compile with the real typst binary.
Layer 2 (renderer repair loop) must map compile errors back to element vars
and downgrade them to plain text instead of failing the whole document.
"""
import shutil
import subprocess
import sys
from pathlib import Path
import pytest
sys.path.insert(0, str(Path(__file__).parent.parent))
from pdf2zh.render.config import RenderConfig
from pdf2zh.render.markup import to_typst_native
from pdf2zh.render.renderer import _failing_element_vars, render_document
from pdf2zh.render.source_builder import build_typst_source
TYPST = shutil.which("typst")
class TestFailingElementVars:
SOURCE = "\n".join(
[
"#set page(width: 100pt, height: 100pt)", # line 1
"#let e0_0_tm = [good markup]", # line 2
"#let e0_1_tm = [broken", # line 3
" still broken]", # line 4
'#let e0_1_c2_md = "cell"', # line 5
]
)
def test_maps_error_line_to_element_var(self):
stderr = "error: expected expression\n ┌─ ../tmp/x/overlay.typ:4:2\n"
assert _failing_element_vars(self.SOURCE, stderr) == {"e0_1"}
def test_maps_cell_var(self):
stderr = "┌─ overlay.typ:5:1\n"
assert _failing_element_vars(self.SOURCE, stderr) == {"e0_1_c2"}
def test_error_outside_elements_not_attributed(self):
stderr = "┌─ overlay.typ:1:1\n"
assert _failing_element_vars(self.SOURCE, stderr) == set()
def test_multiple_errors_collected(self):
stderr = "┌─ overlay.typ:3:5\n...\n┌─ overlay.typ:5:1\n"
assert _failing_element_vars(self.SOURCE, stderr) == {"e0_1", "e0_1_c2"}
def _parsed_with(translated: str, category: str = "FLOWING_TEXT") -> dict:
return {
"pages": [
{
"page_width": 200,
"page_height": 100,
"elements": [
{
"category": category,
"label": "Text",
"bbox_pdf": [10, 10, 190, 40],
"source_text": "Source",
"translated_text": translated,
}
],
}
]
}
class TestFallbackVars:
def test_fallback_var_uses_plain_markdown_path(self):
parsed = _parsed_with("<typst>broken #let ( markup</typst>")
cfg = RenderConfig()
source = build_typst_source(parsed, {"p0:e0": 10}, {}, {}, cfg)
assert "#let e0_0_tm = [" in source
source_fb = build_typst_source(
parsed, {"p0:e0": 10}, {}, {}, cfg, fallback_vars={"e0_0"}
)
assert "#let e0_0_tm = [" not in source_fb
assert '#let e0_0_md = "' in source_fb
def test_equation_fallback_uses_markdown_path(self):
parsed = _parsed_with("x <math>a+b</math>", category="EQUATION")
cfg = RenderConfig()
source_fb = build_typst_source(
parsed, {"p0:e0": 10}, {}, {}, cfg, fallback_vars={"e0_0"}
)
assert '#let e0_0_md = "' in source_fb
@pytest.mark.skipif(TYPST is None, reason="typst binary not installed")
class TestSanitizerOutputCompiles:
@pytest.mark.parametrize(
"text",
[
"<math>page_index = k</math>",
'<math>upright("page_index") = k</math>',
'<math>TP(t) = #{"pairs" "with" IoU >= t}</math>',
"<math>_(x)</math>",
"<math>x_</math>",
'<math>x = "unclosed</math>',
"<typst>page $page_index$ = k</typst>",
],
)
def test_output_compiles(self, text, tmp_path):
typ = tmp_path / "t.typ"
typ.write_text(to_typst_native(text) + "\n", encoding="utf-8")
result = subprocess.run(
[TYPST, "compile", str(typ), str(tmp_path / "t.pdf")],
capture_output=True,
text=True,
)
assert result.returncode == 0, result.stderr
@pytest.mark.skipif(TYPST is None, reason="typst binary not installed")
class TestRepairLoopEndToEnd:
def test_broken_element_downgraded_instead_of_failing(self, tmp_path):
import fitz
pdf_path = tmp_path / "src.pdf"
doc = fitz.open()
doc.new_page(width=200, height=100)
doc.save(str(pdf_path))
doc.close()
# Raw <typst> passthrough with invalid markup: survives the static
# sanity gates, only the compiler can catch it.
parsed = _parsed_with("<typst>broken #let ( markup</typst>")
cfg = RenderConfig(typst_binary=TYPST)
out_pdf = tmp_path / "out.pdf"
stats = render_document(pdf_path, parsed, out_pdf, cfg)
assert out_pdf.exists()
assert stats["elements_fallback"] == 1
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