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test_util.py
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from __future__ import annotations
import logging
import time
from contextlib import ExitStack
from pathlib import Path
from typing import TYPE_CHECKING, Any, Union
import pytest
from rdflib import XSD, util
from rdflib.graph import ConjunctiveGraph, Graph, QuotedGraph
from rdflib.namespace import RDF, RDFS
from rdflib.term import BNode, IdentifiedNode, Literal, URIRef
from rdflib.util import _coalesce, _iri2uri, find_roots, get_tree
from test.data import TEST_DATA_DIR
from test.utils.graph import cached_graph
from test.utils.namespace import RDFT
if TYPE_CHECKING:
from collections.abc import Collection
from rdflib.graph import _ObjectType, _SubjectType
n3source = """\
@prefix : <http://www.w3.org/2000/10/swap/Primer#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix foo: <http://www.w3.org/2000/10/swap/Primer#>.
@prefix swap: <http://www.w3.org/2000/10/swap/>.
<> dc:title
"Primer - Getting into the Semantic Web and RDF using N3".
<#pat> <#knows> <#jo> .
<#pat> <#age> 24 .
<#al> is <#child> of <#pat> .
<#pat> <#child> <#al>, <#chaz>, <#mo> ;
<#age> 24 ;
<#eyecolor> "blue" .
:Person a rdfs:Class.
:Pat a :Person.
:Woman a rdfs:Class; rdfs:subClassOf :Person .
:sister a rdf:Property.
:sister rdfs:domain :Person;
rdfs:range :Woman.
:Woman = foo:FemaleAdult .
:Title a rdf:Property; = dc:title .
""" # --- End of primer code
class TestUtilMisc:
def setup_method(self):
self.x = Literal(
"2008-12-01T18:02:00Z",
datatype=URIRef("http://www.w3.org/2001/XMLSchema#dateTime"),
)
def test_util_list2set(self):
base = [Literal("foo"), self.x]
r = util.list2set(base + base)
assert r == base
def test_util_uniq(self):
base = ["michel", "hates", "pizza"]
r = util.uniq(base + base)
assert sorted(r) == sorted(base)
base = ["michel", "hates", "pizza"]
r = util.uniq(base + base, strip=True)
assert sorted(r) == sorted(base)
class TestUtilDateTime:
def setup_method(self):
self.x = Literal(
"2008-12-01T18:02:00Z",
datatype=URIRef("http://www.w3.org/2001/XMLSchema#dateTime"),
)
def test_util_date_time_tisnoneandnotz(self):
t = None
res = util.date_time(t, local_time_zone=False)
assert res[4:5] == "-"
def test_util_date_time_tisnonebuttz(self):
t = None
res = util.date_time(t, local_time_zone=True)
assert res[4:5] == "-"
def test_util_date_time_tistime(self):
t = time.time()
res = util.date_time(t, local_time_zone=False)
assert res[4:5] == "-"
def test_util_date_time_tistimewithtz(self):
t = time.time()
res = util.date_time(t, local_time_zone=True)
assert res[4:5] == "-"
def test_util_parse_date_time(self):
t = time.time()
res = util.parse_date_time("1970-01-01")
assert res is not t
def test_util_parse_date_timewithtz(self):
t = time.time()
res = util.parse_date_time("1970-01-01")
assert res is not t
def test_util_date_timewithtoutz(self):
t = time.time()
def ablocaltime(t):
from time import gmtime
res = gmtime(t)
return res
util.localtime = ablocaltime
res = util.date_time(t, local_time_zone=True)
assert res is not t
class TestUtilTermConvert:
def setup_method(self):
self.x = Literal(
"2008-12-01T18:02:00Z",
datatype=URIRef("http://www.w3.org/2001/XMLSchema#dateTime"),
)
def test_util_to_term_sisNone(self): # noqa: N802
s = None
assert util.to_term(s) == s
assert util.to_term(s, default="") == ""
def test_util_to_term_sisstr(self):
s = '"http://example.com"'
res = util.to_term(s)
assert isinstance(res, Literal)
assert str(res) == s[1:-1]
def test_util_to_term_sisurl(self):
s = "<http://example.com>"
res = util.to_term(s)
assert isinstance(res, URIRef)
assert str(res) == s[1:-1]
def test_util_to_term_sisbnode(self):
s = "_http%23%4F%4Fexample%33com"
res = util.to_term(s)
assert isinstance(res, BNode)
def test_util_to_term_sisunknown(self):
s = "http://example.com"
with pytest.raises(Exception):
util.to_term(s)
def test_util_to_term_sisnotstr(self):
s = self.x
with pytest.raises(Exception):
util.to_term(s)
def test_util_from_n3_sisnonenodefault(self):
s = None
default = None
res = util.from_n3(s, default=default, backend=None)
assert res == default
def test_util_from_n3_sisnonewithdefault(self):
s = None
default = "TestofDefault"
res = util.from_n3(s, default=default, backend=None)
assert res == default
def test_util_from_n3_expectdefaultbnode(self):
s = "michel"
res = util.from_n3(s, default=None, backend=None)
assert isinstance(res, BNode)
def test_util_from_n3_expectbnode(self):
s = "_:michel"
res = util.from_n3(s, default=None, backend=None)
assert isinstance(res, BNode)
def test_util_from_n3_expectliteral(self):
s = '"michel"'
res = util.from_n3(s, default=None, backend=None)
assert isinstance(res, Literal)
def test_util_from_n3_expecturiref(self):
s = "<http://example.org/schema>"
res = util.from_n3(s, default=None, backend=None)
assert res is not None
assert isinstance(res, URIRef)
def test_util_from_n3_expectliteralandlang(self):
s = '"michel"@fr'
res = util.from_n3(s, default=None, backend=None)
assert res is not None
assert isinstance(res, Literal)
def test_util_from_n3_expectliteralandlangdtype(self):
s = '"michel"@fr^^xsd:fr'
res = util.from_n3(s, default=None, backend=None)
assert isinstance(res, Literal)
assert res is not None
assert res == Literal("michel", datatype=XSD["fr"])
def test_util_from_n3_expectliteralanddtype(self):
s = '"true"^^xsd:boolean'
res = util.from_n3(s, default=None, backend=None)
assert res is not None
assert res.eq(Literal("true", datatype=XSD["boolean"]))
def test_util_from_n3_expectliteralwithdatatypefromint(self):
s = "42"
res = util.from_n3(s)
assert res == Literal(42)
def test_util_from_n3_expectliteralwithdatatypefrombool(self):
s = "true"
res = util.from_n3(s)
assert res == Literal(True)
s = "false"
res = util.from_n3(s)
assert res == Literal(False)
def test_util_from_n3_expectliteralmultiline(self):
s = '"""multi\nline\nstring"""@en'
res = util.from_n3(s, default=None, backend=None)
assert res == Literal("multi\nline\nstring", lang="en")
def test_util_from_n3_expectliteralwithescapedquote(self):
s = '"\\""'
res = util.from_n3(s, default=None, backend=None)
assert res == Literal('"')
def test_util_from_n3_expectliteralwithtrailingbackslash(self):
s = '"trailing\\\\"^^<http://www.w3.org/2001/XMLSchema#string>'
res = util.from_n3(s)
assert res == Literal("trailing\\", datatype=XSD["string"])
assert res.n3() == s
def test_util_from_n3_expectpartialidempotencewithn3(self):
for n3 in (
"<http://ex.com/foo>",
'"foo"@de',
"<http://ex.com/漢字>",
"<http://ex.com/a#あ>",
# '"\\""', # exception as '\\"' --> '"' by orig parser as well
'"""multi\n"line"\nstring"""@en',
):
assert util.from_n3(n3).n3() == n3, "from_n3(%(n3e)r).n3() != %(n3e)r" % {
"n3e": n3
}
def test_util_from_n3_expectsameasn3parser(self):
def parse_n3(term_n3):
"""Disclaimer: Quick and dirty hack using the n3 parser."""
prepstr = (
"@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .\n"
"<urn:no_use> <urn:no_use> %s.\n" % term_n3
)
g = ConjunctiveGraph()
g.parse(data=prepstr, format="n3")
return [t for t in g.triples((None, None, None))][0][2]
for n3 in ( # "michel", # won't parse in original parser
# "_:michel", # BNodes won't be the same
'"michel"',
"<http://example.org/schema>",
'"michel"@fr',
# '"michel"@fr^^xsd:fr', # FIXME: invalid n3, orig parser will prefer datatype
# '"true"^^xsd:boolean', # FIXME: orig parser will expand xsd prefix
"42",
"true",
"false",
'"""multi\nline\nstring"""@en',
"<http://ex.com/foo>",
'"foo"@de',
'"\\""@en',
'"""multi\n"line"\nstring"""@en',
):
res, exp = util.from_n3(n3), parse_n3(n3)
assert (
res == exp
), "from_n3(%(n3e)r): %(res)r != parser.notation3: %(exp)r" % {
"res": res,
"exp": exp,
"n3e": n3,
}
def test_util_from_n3_expectquotedgraph(self):
s = "{<http://example.com/schema>}"
res = util.from_n3(s, default=None, backend="Memory")
assert isinstance(res, QuotedGraph)
def test_util_from_n3_expectgraph(self):
s = "[<http://example.com/schema>]"
res = util.from_n3(s, default=None, backend="Memory")
assert isinstance(res, Graph)
@pytest.mark.parametrize(
["escaped", "raw"],
[
("\\t", "\t"),
("\\b", "\b"),
("\\n", "\n"),
("\\r", "\r"),
("\\f", "\f"),
('\\"', '"'),
("\\'", "'"),
("\\\\", "\\"),
("\\u00F6", "ö"),
("\\U000000F6", "ö"),
],
)
def test_util_from_n3_escapes(self, escaped: str, raw: str) -> None:
literal_str = str(util.from_n3(f'"{escaped}"'))
assert literal_str == f"{raw}"
@pytest.mark.parametrize(
"string",
[
("jörn"),
("j\\xf6rn"),
("\\I"),
],
)
def test_util_from_n3_not_escapes(self, string: str) -> None:
literal_str = str(util.from_n3(f'"{string}"'))
assert literal_str == f"{string}"
@pytest.mark.xfail
@pytest.mark.parametrize(
"string",
[
("j\\366rn"),
("\\"),
("\\0"),
],
)
def test_util_from_n3_not_escapes_xf(self, string: str) -> None:
literal_str = str(util.from_n3(f'"{string}"'))
assert literal_str == f"{string}"
@pytest.mark.parametrize(
["params", "default", "expected_result"],
[
([], ..., None),
(["something"], ..., "something"),
([False, "something"], ..., False),
(["", "something"], ..., ""),
([0, "something"], ..., 0),
([None, "something", 1], ..., "something"),
(["something", None, 1], ..., "something"),
(["something", None, 1], 5, "something"),
([], 5, 5),
([None], 5, 5),
([None, None], 5, 5),
([None, None], 5, 5),
],
)
def test__coalesce(params: Collection[Any], default: Any, expected_result: Any) -> None:
if default == Ellipsis:
result = _coalesce(*params)
else:
result = _coalesce(*params, default)
assert expected_result == result
def test__coalesce_typing() -> None:
"""
type checking for _coalesce behaves as expected.
"""
str_value: str
optional_str_value: str | None
optional_str_value = _coalesce(None, "a", None)
assert optional_str_value == "a"
str_value = _coalesce(None, "a", None) # type: ignore[assignment]
assert str_value == "a"
str_value = _coalesce(None, "a", None, default="3")
assert str_value == "a"
@pytest.mark.parametrize(
["graph_sources", "prop", "roots", "expected_result"],
[
(
(TEST_DATA_DIR / "defined_namespaces/rdfs.ttl",),
RDFS.subClassOf,
None,
{RDF.Property, RDFS.Resource},
),
(
(TEST_DATA_DIR / "defined_namespaces/rdftest.ttl",),
RDFS.subClassOf,
None,
{RDFT.Approval, RDFT.Test},
),
(
(
TEST_DATA_DIR / "defined_namespaces/rdftest.ttl",
TEST_DATA_DIR / "defined_namespaces/rdfs.ttl",
),
RDFS.subClassOf,
None,
{RDFT.Approval, RDFT.Test, RDF.Property, RDFS.Resource},
),
(
tuple(),
RDFS.subClassOf,
None,
set(),
),
(
tuple(),
RDFS.subClassOf,
{RDFS.Resource},
{RDFS.Resource},
),
],
)
def test_find_roots(
graph_sources: tuple[Path, ...],
prop: URIRef,
roots: set[_SubjectType | _ObjectType] | None,
expected_result: Union[set[URIRef], type[Exception]],
) -> None:
catcher: pytest.ExceptionInfo[Exception] | None = None
graph = cached_graph(graph_sources)
with ExitStack() as xstack:
if isinstance(expected_result, type) and issubclass(expected_result, Exception):
catcher = xstack.enter_context(pytest.raises(expected_result))
result = find_roots(graph, prop, roots)
if catcher is not None:
assert catcher is not None
assert catcher.value is not None
else:
assert expected_result == result
@pytest.mark.parametrize(
["graph_sources", "root", "prop", "dir", "expected_result"],
[
(
(
TEST_DATA_DIR / "defined_namespaces/rdftest.ttl",
TEST_DATA_DIR / "defined_namespaces/rdfs.ttl",
),
RDFT.TestTurtlePositiveSyntax,
RDFS.subClassOf,
"down",
(RDFT.TestTurtlePositiveSyntax, []),
),
(
(
TEST_DATA_DIR / "defined_namespaces/rdftest.ttl",
TEST_DATA_DIR / "defined_namespaces/rdfs.ttl",
),
RDFT.TestTurtlePositiveSyntax,
RDFS.subClassOf,
"up",
(
RDFT.TestTurtlePositiveSyntax,
[
(RDFT.TestSyntax, [(RDFT.Test, [])]),
],
),
),
(
(
TEST_DATA_DIR / "defined_namespaces/rdftest.ttl",
TEST_DATA_DIR / "defined_namespaces/rdfs.ttl",
),
RDFS.Resource,
RDFS.subClassOf,
"down",
(
RDFS.Resource,
[
(RDFS.Class, [(RDFS.Datatype, [])]),
(RDFS.Container, []),
(RDFS.Literal, []),
],
),
),
(
(
TEST_DATA_DIR / "defined_namespaces/rdftest.ttl",
TEST_DATA_DIR / "defined_namespaces/rdfs.ttl",
),
RDFS.Resource,
RDFS.subClassOf,
"up",
(RDFS.Resource, []),
),
(
(
TEST_DATA_DIR / "defined_namespaces/rdftest.ttl",
TEST_DATA_DIR / "defined_namespaces/rdfs.ttl",
),
RDFT.Test,
RDFS.subClassOf,
"down",
(
RDFT.Test,
[
(
RDFT.TestEval,
[
(RDFT.TestTrigNegativeEval, []),
(RDFT.TestTurtleEval, []),
(RDFT.TestTurtleNegativeEval, []),
(RDFT.XMLEval, []),
],
),
(
RDFT.TestSyntax,
[
(RDFT.TestNQuadsNegativeSyntax, []),
(RDFT.TestNQuadsPositiveSyntax, []),
(RDFT.TestNTriplesNegativeSyntax, []),
(RDFT.TestNTriplesPositiveSyntax, []),
(RDFT.TestTriGNegativeSyntax, []),
(RDFT.TestTriGPositiveSyntax, []),
(RDFT.TestTurtleNegativeSyntax, []),
(RDFT.TestTurtlePositiveSyntax, []),
],
),
],
),
),
(
(
TEST_DATA_DIR / "defined_namespaces/rdftest.ttl",
TEST_DATA_DIR / "defined_namespaces/rdfs.ttl",
),
RDFT.Test,
RDFS.subClassOf,
"up",
(RDFT.Test, []),
),
],
)
def test_get_tree(
graph_sources: tuple[Path, ...],
root: IdentifiedNode,
prop: URIRef,
dir: str,
expected_result: Union[tuple[IdentifiedNode, list[Any]], type[Exception]],
) -> None:
catcher: pytest.ExceptionInfo[Exception] | None = None
graph = cached_graph(graph_sources)
with ExitStack() as xstack:
if isinstance(expected_result, type) and issubclass(expected_result, Exception):
catcher = xstack.enter_context(pytest.raises(expected_result))
result = get_tree(graph, root, prop, dir=dir)
logging.debug("result = %s", result)
if catcher is not None:
assert catcher is not None
assert catcher.value is not None
else:
assert expected_result == result
@pytest.mark.parametrize(
["iri", "expected_result"],
[
(
"https://example.com/resource/Almería",
{
"https://example.com/resource/Almer%C3%ADa",
},
),
(
"https://example.com/resource/Almeria",
{
"https://example.com/resource/Almeria",
},
),
(
"https://åæø.example.com/",
{
"https://xn--5cac8c.example.com/",
},
),
(
# Note: expected result is the same because the function only works
# for http and https.
"example:é",
{
"example:é",
},
),
(
# Note: expected result is the same because the function only works
# for http and https.
"urn:example:é",
{
"urn:example:é",
},
),
(
"http://example.com/?é=1",
{
"http://example.com/?%C3%A9=1",
"http://example.com/?%C3%A9%3D1",
},
),
(
"http://example.com/#é",
{
"http://example.com/#%C3%A9",
},
),
(
"http://example.com/é#",
{
"http://example.com/%C3%A9#",
},
),
(
"http://example.com:1231/",
{
"http://example.com:1231/",
},
),
(
"http://example.com:1231/a=b",
{
"http://example.com:1231/a=b",
},
),
(
"http://aé:aé@example.com:1231/bé/a=bé&c=d#a=bé&c=d",
{
"http://a%C3%A9:a%C3%[email protected]:1231/b%C3%A9/a=b%C3%A9&c=d#a=b%C3%A9&c=d",
},
),
(
"http://a%C3%A9:a%C3%[email protected]:1231/b%C3%A9/a=b%C3%A9&c=d#a=b%C3%A9&c=d",
{
"http://a%C3%A9:a%C3%[email protected]:1231/b%C3%A9/a=b%C3%A9&c=d#a=b%C3%A9&c=d",
},
),
],
)
def test_iri2uri(iri: str, expected_result: Union[set[str], type[Exception]]) -> None:
"""
Tests that
"""
catcher: pytest.ExceptionInfo[Exception] | None = None
with ExitStack() as xstack:
if isinstance(expected_result, type) and issubclass(expected_result, Exception):
catcher = xstack.enter_context(pytest.raises(expected_result))
result = _iri2uri(iri)
logging.debug("result = %s", result)
if catcher is not None:
assert catcher is not None
assert catcher.value is not None
else:
assert isinstance(expected_result, set)
assert result in expected_result