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c7d5985 bbbfba8 c7d5985 bbbfba8 c7d5985 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 | """Tests for the PAGE XML serializer."""
from __future__ import annotations
from lxml import etree
from src.app.domain.models import (
AltoReadiness,
CanonicalDocument,
EvidenceType,
Geometry,
GeometryStatus,
Page,
PageXmlReadiness,
Provenance,
ReadinessLevel,
Source,
TextLine,
TextRegion,
Word,
)
from src.app.domain.models.status import BlockRole, InputType
from src.app.serializers.page_xml import PAGE_NS, serialize_page_xml, serialize_page_xml_to_string
def _prov(ref: str = "$.test") -> Provenance:
return Provenance(
provider="test", adapter="test.v1", source_ref=ref,
evidence_type=EvidenceType.PROVIDER_NATIVE,
)
def _geo(x: float = 100, y: float = 200, w: float = 300, h: float = 50) -> Geometry:
return Geometry(bbox=(x, y, w, h), status=GeometryStatus.EXACT)
def _geo_with_polygon() -> Geometry:
return Geometry(
bbox=(100, 200, 300, 50),
polygon=[(98, 205), (402, 195), (404, 245), (100, 255)],
status=GeometryStatus.EXACT,
)
def _simple_doc() -> CanonicalDocument:
"""One-page doc with one region, one line, two words."""
return CanonicalDocument(
document_id="doc_page_test",
source=Source(input_type=InputType.IMAGE, filename="test.png"),
pages=[
Page(
id="p1", page_index=0, width=2480, height=3508,
alto_readiness=AltoReadiness(level=ReadinessLevel.FULL),
page_readiness=PageXmlReadiness(level=ReadinessLevel.FULL),
reading_order=["tb1"],
text_regions=[
TextRegion(
id="tb1", role=BlockRole.BODY,
geometry=_geo(100, 200, 1200, 900),
lang="fra", provenance=_prov(),
lines=[
TextLine(
id="tl1",
geometry=_geo(110, 220, 1100, 42),
lang="fra", provenance=_prov(),
words=[
Word(id="w1", text="Bonjour",
geometry=_geo(110, 220, 90, 40),
lang="fra", confidence=0.96,
provenance=_prov()),
Word(id="w2", text="monde",
geometry=_geo(220, 220, 80, 40),
lang="fra", confidence=0.94,
provenance=_prov()),
],
),
],
),
],
),
],
)
class TestPageXmlSerialization:
def test_produces_valid_xml(self) -> None:
doc = _simple_doc()
xml_bytes = serialize_page_xml(doc)
root = etree.fromstring(xml_bytes)
assert root.tag == f"{{{PAGE_NS}}}PcGts"
def test_has_metadata(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
meta = root.find(f"{{{PAGE_NS}}}Metadata")
assert meta is not None
creator = meta.find(f"{{{PAGE_NS}}}Creator")
assert creator is not None
assert creator.text == "XmLLM"
def test_pcgts_id(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
assert root.get("pcGtsId") == "doc_page_test"
def test_page_dimensions(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
page = root.find(f"{{{PAGE_NS}}}Page")
assert page is not None
assert page.get("imageWidth") == "2480"
assert page.get("imageHeight") == "3508"
def test_reading_order(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
ro = root.find(f".//{{{PAGE_NS}}}ReadingOrder")
assert ro is not None
og = ro.find(f"{{{PAGE_NS}}}OrderedGroup")
assert og is not None
refs = og.findall(f"{{{PAGE_NS}}}RegionRefIndexed")
assert len(refs) == 1
assert refs[0].get("index") == "0"
assert refs[0].get("regionRef") == "tb1"
def test_text_region_exists(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
tr = root.find(f".//{{{PAGE_NS}}}TextRegion")
assert tr is not None
assert tr.get("id") == "tb1"
assert tr.get("type") == "paragraph"
def test_text_region_coords(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
tr = root.find(f".//{{{PAGE_NS}}}TextRegion")
coords = tr.find(f"{{{PAGE_NS}}}Coords")
assert coords is not None
points = coords.get("points")
assert points is not None
# bbox (100,200,1200,900) → rectangle 4 points
parts = points.split()
assert len(parts) == 4
assert parts[0] == "100,200" # top-left
def test_text_line_exists(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
tl = root.find(f".//{{{PAGE_NS}}}TextLine")
assert tl is not None
assert tl.get("id") == "tl1"
def test_words_exist(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
words = root.findall(f".//{{{PAGE_NS}}}Word")
assert len(words) == 2
def test_word_text_equiv(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
words = root.findall(f".//{{{PAGE_NS}}}Word")
te = words[0].find(f"{{{PAGE_NS}}}TextEquiv")
assert te is not None
unicode_el = te.find(f"{{{PAGE_NS}}}Unicode")
assert unicode_el is not None
assert unicode_el.text == "Bonjour"
def test_word_confidence(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
words = root.findall(f".//{{{PAGE_NS}}}Word")
assert words[0].get("conf") == "0.96"
def test_line_text_equiv(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
tl = root.find(f".//{{{PAGE_NS}}}TextLine")
te = tl.find(f"{{{PAGE_NS}}}TextEquiv")
unicode_el = te.find(f"{{{PAGE_NS}}}Unicode")
assert unicode_el.text == "Bonjour monde"
def test_region_text_equiv(self) -> None:
doc = _simple_doc()
root = etree.fromstring(serialize_page_xml(doc))
tr = root.find(f".//{{{PAGE_NS}}}TextRegion")
# Region TextEquiv is after lines
te_all = tr.findall(f"{{{PAGE_NS}}}TextEquiv")
assert len(te_all) == 1
unicode_el = te_all[0].find(f"{{{PAGE_NS}}}Unicode")
assert unicode_el.text == "Bonjour monde"
def test_string_output(self) -> None:
doc = _simple_doc()
xml_str = serialize_page_xml_to_string(doc)
assert "<?xml version=" in xml_str
assert "Bonjour" in xml_str
assert "PcGts" in xml_str
class TestPageXmlPolygon:
def test_uses_polygon_when_available(self) -> None:
doc = CanonicalDocument(
document_id="doc_poly",
source=Source(input_type=InputType.IMAGE),
pages=[Page(
id="p1", page_index=0, width=2480, height=3508,
text_regions=[TextRegion(
id="tb1", geometry=_geo_with_polygon(), provenance=_prov(),
lines=[TextLine(
id="tl1", geometry=_geo_with_polygon(), provenance=_prov(),
words=[Word(
id="w1", text="test",
geometry=_geo_with_polygon(), provenance=_prov(),
)],
)],
)],
)],
)
root = etree.fromstring(serialize_page_xml(doc))
word = root.find(f".//{{{PAGE_NS}}}Word")
coords = word.find(f"{{{PAGE_NS}}}Coords")
points = coords.get("points")
# Should use the polygon, not a rectangle from bbox
parts = points.split()
assert len(parts) == 4
assert parts[0] == "98,205" # first polygon point
def test_falls_back_to_bbox_rectangle(self) -> None:
doc = CanonicalDocument(
document_id="doc_rect",
source=Source(input_type=InputType.IMAGE),
pages=[Page(
id="p1", page_index=0, width=1000, height=1000,
text_regions=[TextRegion(
id="tb1", geometry=_geo(10, 20, 100, 50), provenance=_prov(),
lines=[TextLine(
id="tl1", geometry=_geo(10, 20, 100, 50), provenance=_prov(),
words=[Word(
id="w1", text="test",
geometry=_geo(10, 20, 100, 50), provenance=_prov(),
)],
)],
)],
)],
)
root = etree.fromstring(serialize_page_xml(doc))
word = root.find(f".//{{{PAGE_NS}}}Word")
coords = word.find(f"{{{PAGE_NS}}}Coords")
points = coords.get("points")
parts = points.split()
assert len(parts) == 4
# bbox (10,20,100,50) → rectangle: top-left, top-right, bottom-right, bottom-left
assert parts[0] == "10,20"
assert parts[1] == "110,20"
assert parts[2] == "110,70"
assert parts[3] == "10,70"
class TestPageXmlRoles:
def test_heading_role(self) -> None:
doc = CanonicalDocument(
document_id="doc_roles",
source=Source(input_type=InputType.IMAGE),
pages=[Page(
id="p1", page_index=0, width=1000, height=1000,
text_regions=[TextRegion(
id="tb1", role=BlockRole.HEADING,
geometry=_geo(), provenance=_prov(),
lines=[TextLine(
id="tl1", geometry=_geo(), provenance=_prov(),
words=[Word(id="w1", text="Title", geometry=_geo(), provenance=_prov())],
)],
)],
)],
)
root = etree.fromstring(serialize_page_xml(doc))
tr = root.find(f".//{{{PAGE_NS}}}TextRegion")
assert tr.get("type") == "heading"
def test_footnote_role(self) -> None:
doc = CanonicalDocument(
document_id="doc_fn",
source=Source(input_type=InputType.IMAGE),
pages=[Page(
id="p1", page_index=0, width=1000, height=1000,
text_regions=[TextRegion(
id="tb1", role=BlockRole.FOOTNOTE,
geometry=_geo(), provenance=_prov(),
lines=[TextLine(
id="tl1", geometry=_geo(), provenance=_prov(),
words=[Word(id="w1", text="Note", geometry=_geo(), provenance=_prov())],
)],
)],
)],
)
root = etree.fromstring(serialize_page_xml(doc))
tr = root.find(f".//{{{PAGE_NS}}}TextRegion")
assert tr.get("type") == "footnote"
class TestPageXmlMultipleRegions:
def test_reading_order_multiple(self) -> None:
doc = CanonicalDocument(
document_id="doc_multi",
source=Source(input_type=InputType.IMAGE),
pages=[Page(
id="p1", page_index=0, width=2000, height=3000,
reading_order=["tb1", "tb2"],
text_regions=[
TextRegion(
id="tb1", role=BlockRole.HEADING,
geometry=_geo(0, 0, 2000, 200), provenance=_prov(),
lines=[TextLine(
id="tl1", geometry=_geo(0, 0, 2000, 40),
provenance=_prov(),
words=[Word(
id="w1", text="Title",
geometry=_geo(0, 0, 200, 40),
provenance=_prov(),
)],
)],
),
TextRegion(
id="tb2", role=BlockRole.BODY,
geometry=_geo(0, 250, 2000, 2500),
provenance=_prov(),
lines=[TextLine(
id="tl2", geometry=_geo(0, 250, 2000, 40),
provenance=_prov(),
words=[Word(
id="w2", text="Body",
geometry=_geo(0, 250, 200, 40),
provenance=_prov(),
)],
)],
),
],
)],
)
root = etree.fromstring(serialize_page_xml(doc))
# Two text regions
regions = root.findall(f".//{{{PAGE_NS}}}TextRegion")
assert len(regions) == 2
# Reading order with 2 refs
refs = root.findall(f".//{{{PAGE_NS}}}RegionRefIndexed")
assert len(refs) == 2
assert refs[0].get("regionRef") == "tb1"
assert refs[0].get("index") == "0"
assert refs[1].get("regionRef") == "tb2"
assert refs[1].get("index") == "1"
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