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import logging
import textwrap
import xml.dom.minidom
from typing import Callable, Sequence
import pytest
import rdflib
from rdflib import RDF, Literal
try:
import html5lib # noqa: F401
have_html5lib = True
except ImportError:
have_html5lib = False
def testPythonRoundtrip():
l1 = Literal("<msg>hello</msg>", datatype=RDF.XMLLiteral)
assert l1.value is not None, "xml must have been parsed"
assert l1.datatype == RDF.XMLLiteral, "literal must have right datatype"
l2 = Literal("<msg>good morning</msg>", datatype=RDF.XMLLiteral)
assert l2.value is not None, "xml must have been parsed"
assert not l1.eq(l2), "literals must NOT be equal"
l3 = Literal(l1.value)
assert l1.eq(l3), "roundtripped literals must be equal"
assert l3.datatype == RDF.XMLLiteral, "literal must have right datatype"
l4 = Literal("<msg >hello</msg>", datatype=RDF.XMLLiteral)
assert l1 == l4
assert l1.eq(l4)
rdflib.NORMALIZE_LITERALS = False
try:
l4 = Literal("<msg >hello</msg>", datatype=RDF.XMLLiteral)
assert l1 != l4
assert l1.eq(l4)
finally:
rdflib.NORMALIZE_LITERALS = True
def testRDFXMLParse():
rdfxml = """\
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dc="http://purl.org/dc/elements/1.1/"
>
<rdf:Description rdf:about="http://example.org/">
<dc:description rdf:parseType="Literal">
<p xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"></p>
</dc:description>
</rdf:Description>
</rdf:RDF>"""
g = rdflib.Graph()
g.parse(data=rdfxml, format="xml")
l1 = list(g)[0][2]
assert l1.datatype == RDF.XMLLiteral
def graph():
g = rdflib.Graph()
g.add(
(
rdflib.URIRef("http://example.org/a"),
rdflib.URIRef("http://example.org/p"),
rdflib.Literal("<msg>hei</hei>", datatype=RDF.XMLLiteral),
)
)
return g
def roundtrip(fmt):
g1 = graph()
l1 = list(g1)[0][2]
g2 = rdflib.Graph()
g2.parse(data=g1.serialize(format=fmt), format=fmt)
l2 = list(g2)[0][2]
assert l1.eq(l2)
def testRoundtrip():
roundtrip("xml")
roundtrip("n3")
roundtrip("nt")
@pytest.mark.skipif(not have_html5lib, reason="requires html5lib")
def testHTML():
l1 = Literal("<msg>hello</msg>", datatype=RDF.XMLLiteral)
assert l1.value is not None, "xml must have been parsed"
assert l1.datatype == RDF.XMLLiteral, "literal must have right datatype"
l2 = Literal("<msg>hello</msg>", datatype=RDF.HTML)
assert l2.value is not None, "xml must have been parsed"
assert l2.datatype == RDF.HTML, "literal must have right datatype"
assert l1 != l2
assert not l1.eq(l2)
@pytest.mark.parametrize(
("values", "equals"),
[
pytest.param(
[
lambda: Literal("<something />", datatype=RDF.XMLLiteral),
lambda: Literal("<something/>", datatype=RDF.XMLLiteral),
],
True,
),
pytest.param(
[
lambda: Literal(
xml.dom.minidom.parseString(
textwrap.dedent(
"""\
<!DOCTYPE example>
<something/>
"""
)
),
datatype=RDF.XMLLiteral,
),
lambda: Literal(
xml.dom.minidom.parseString(
textwrap.dedent(
"""\
<!DOCTYPE example>
<something />
"""
)
),
datatype=RDF.XMLLiteral,
),
],
True,
),
],
)
def test_eq(values: Sequence[Callable[[], Literal]], equals: bool) -> None:
first_value = values[0]()
logging.debug("first_value = \n%r", first_value)
for value in values[1:]:
current_value = value()
logging.debug("current_value = \n%r", current_value)
if equals:
assert first_value.eq(
current_value
), f"{current_value} must be equal to {first_value}"
else:
assert not first_value.eq(
current_value
), f"{current_value} must be not be equal to {first_value}"
|
