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import logging
import os
import re
from pathlib import Path
from urllib.request import urlopen
import pytest
from rdflib import Graph, Literal, URIRef
from rdflib.plugins.parsers import ntriples
from test.data import TEST_DATA_DIR
log = logging.getLogger(__name__)
NT_PATH = os.path.relpath(os.path.join(TEST_DATA_DIR, "suites", "nt_misc"), os.curdir)
def nt_file(fn):
return os.path.join(NT_PATH, fn)
# Test NT
def test_issue859():
graph_a = Graph()
graph_b = Graph()
graph_a.parse(nt_file("quote-01.nt"), format="ntriples")
graph_b.parse(nt_file("quote-02.nt"), format="ntriples")
for subject_a, predicate_a, obj_a in graph_a:
for subject_b, predicate_b, obj_b in graph_b:
assert subject_a == subject_b
assert predicate_a == predicate_b
assert obj_a == obj_b
def test_issue78():
g = Graph()
g.add((URIRef("foo"), URIRef("foo"), Literal("R\u00E4ksm\u00F6rg\u00E5s")))
s = g.serialize(format="nt")
assert type(s) == str # noqa: E721
assert "R\u00E4ksm\u00F6rg\u00E5s" in s
def test_issue146():
g = Graph()
g.add((URIRef("foo"), URIRef("foo"), Literal("test\n", lang="en")))
s = g.serialize(format="nt").strip()
assert s == '<foo> <foo> "test\\n"@en .'
def test_issue1144_rdflib():
fname = nt_file("lists-02.nt")
g1 = Graph()
with open(fname, "r") as f:
g1.parse(f, format="nt")
assert 14 == len(g1)
g2 = Graph()
with open(fname, "rb") as fb:
g2.parse(fb, format="nt")
assert 14 == len(g2)
def test_issue1144_w3c():
fname = nt_file("lists-02.nt")
sink1 = ntriples.NTGraphSink(Graph())
p1 = ntriples.W3CNTriplesParser(sink1)
with open(fname, "r") as f:
p1.parse(f)
assert 14 == len(sink1.g)
sink2 = ntriples.NTGraphSink(Graph())
p2 = ntriples.W3CNTriplesParser(sink2)
with open(fname, "rb") as f:
p2.parse(f)
assert 14 == len(sink2.g)
def test_sink():
s = ntriples.DummySink()
assert s.length == 0
s.triple(None, None, None)
assert s.length == 1
def test_nonvalidating_unquote():
safe = """<http://example.org/alice/foaf.rdf#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> <http://example.org/alice/foaf1.rdf> ."""
ntriples.validate = False
res = ntriples.unquote(safe)
assert isinstance(res, str)
def test_validating_unquote():
quot = """<http://example.org/alice/foaf.rdf#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> <http://example.org/alice/foaf1.rdf> ."""
ntriples.validate = True
res = ntriples.unquote(quot)
# revert to default
ntriples.validate = False
log.debug("restype %s" % type(res))
def test_validating_unquote_raises():
ntriples.validate = True
uniquot = """<http://www.w3.org/People/Berners-Lee/card#cm> <http://xmlns.com/foaf/0.1/name> "R\\u00E4ksm\\u00F6rg\\u00E5s" <http://www.w3.org/People/Berners-Lee/card> ."""
with pytest.raises(ntriples.ParseError):
ntriples.unquote(uniquot)
uniquot = """<http://www.w3.org/People/Berners-Lee/card#cm> <http://xmlns.com/foaf/0.1/name> "R\\\\u00E4ksm\\u00F6rg\\u00E5s" <http://www.w3.org/People/Berners-Lee/card> ."""
with pytest.raises(ntriples.ParseError):
ntriples.unquote(uniquot)
# revert to default
ntriples.validate = False
def test_nonvalidating_uriquote():
ntriples.validate = False
safe = """<http://example.org/alice/foaf.rdf#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> <http://example.org/alice/foaf1.rdf> ."""
res = ntriples.uriquote(safe)
assert res == safe
def test_validating_uriquote():
ntriples.validate = True
uniquot = """<http://www.w3.org/People/Berners-Lee/card#cm> <http://xmlns.com/foaf/0.1/name> "R\\u00E4ksm\\u00F6rg\\u00E5s" <http://www.w3.org/People/Berners-Lee/card> ."""
res = ntriples.uriquote(uniquot)
# revert to default
ntriples.validate = False
assert res == uniquot
def test_w3d_ntriples_parser_fpath():
fpath = os.path.join(nt_file(os.listdir(NT_PATH)[0]))
p = ntriples.W3CNTriplesParser()
with pytest.raises(ntriples.ParseError):
p.parse(fpath)
def test_w3c_ntriples_parser_parsestring():
p = ntriples.W3CNTriplesParser()
data = 3
with pytest.raises(ntriples.ParseError):
p.parsestring(data)
with open(nt_file("lists-02.nt"), "r") as f:
data = f.read()
p = ntriples.W3CNTriplesParser()
res = p.parsestring(data)
assert res is None
def test_w3_ntriple_variants():
uri = Path(nt_file("test.nt")).absolute().as_uri()
parser = ntriples.W3CNTriplesParser()
u = urlopen(uri)
sink = parser.parse(u)
u.close()
# ATM we are only really interested in any exceptions thrown
assert sink is not None
def test_bad_line():
data = """<http://example.org/resource32> 3 <http://example.org/datatype1> .\n"""
p = ntriples.W3CNTriplesParser()
with pytest.raises(ntriples.ParseError):
p.parsestring(data)
def test_cover_eat():
data = """<http://example.org/resource32> 3 <http://example.org/datatype1> .\n"""
p = ntriples.W3CNTriplesParser()
p.line = data
with pytest.raises(ntriples.ParseError):
p.eat(re.compile("<http://example.org/datatype1>"))
def test_cover_subjectobjectliteral():
# data = '''<http://example.org/resource32> 3 <http://example.org/datatype1> .\n'''
p = ntriples.W3CNTriplesParser()
p.line = "baz"
with pytest.raises(ntriples.ParseError):
p.subject()
with pytest.raises(ntriples.ParseError):
p.object()
# p.line = '"baz"@fr^^<http://example.org/datatype1>'
# self.assertRaises(ntriples.ParseError, p.literal)
# Test BNode context
def test_bnode_shared_across_instances():
my_sink = FakeSink()
bnode_context = dict()
p = ntriples.W3CNTriplesParser(my_sink, bnode_context=bnode_context)
p.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000001> .
"""
)
q = ntriples.W3CNTriplesParser(my_sink, bnode_context=bnode_context)
q.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000002> .
"""
)
assert len(my_sink.subs) == 1
def test_bnode_distinct_across_instances():
my_sink = FakeSink()
p = ntriples.W3CNTriplesParser(my_sink)
p.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000001> .
"""
)
q = ntriples.W3CNTriplesParser(my_sink)
q.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000002> .
"""
)
assert len(my_sink.subs) == 2
def test_bnode_distinct_across_parse():
my_sink = FakeSink()
p = ntriples.W3CNTriplesParser(my_sink)
p.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000001> .
""",
bnode_context=dict(),
)
p.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000002> .
""",
bnode_context=dict(),
)
assert len(my_sink.subs) == 2
def test_bnode_shared_across_parse():
my_sink = FakeSink()
p = ntriples.W3CNTriplesParser(my_sink)
p.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000001> .
"""
)
p.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000002> .
"""
)
assert len(my_sink.subs) == 1
def test_bnode_shared_across_instances_with_parse_option():
my_sink = FakeSink()
bnode_ctx = dict()
p = ntriples.W3CNTriplesParser(my_sink)
p.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000001> .
""",
bnode_context=bnode_ctx,
)
q = ntriples.W3CNTriplesParser(my_sink)
q.parsestring(
"""
_:0 <http://purl.obolibrary.org/obo/RO_0002350> <http://www.gbif.org/species/0000002> .
""",
bnode_context=bnode_ctx,
)
assert len(my_sink.subs) == 1
class FakeSink:
def __init__(self):
self.subs = set()
def triple(self, s, p, o):
self.subs.add(s)
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