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import unittest
from unittest.case import expectedFailure
from warnings import warn
from rdflib import DCTERMS
from rdflib.graph import Graph
from rdflib.namespace import (
FOAF,
RDF,
RDFS,
SH,
DefinedNamespaceMeta,
Namespace,
ClosedNamespace,
URIPattern,
)
from rdflib.term import URIRef
class NamespaceTest(unittest.TestCase):
def setUp(self):
self.ns_str = "http://example.com/name/space/"
self.ns = Namespace(self.ns_str)
def test_repr(self):
# NOTE: this assumes ns_str has no characthers that need escaping
self.assertIn(self.ns_str, f"{self.ns!r}")
self.assertEqual(self.ns, eval(f"{self.ns!r}"))
def test_str(self):
self.assertEqual(self.ns_str, f"{self.ns}")
def test_member(self):
self.assertEqual(f"{self.ns_str}a", f"{self.ns.a}")
def test_dcterms_title(self):
self.assertEqual(DCTERMS.title, URIRef(DCTERMS + "title"))
def test_iri(self):
prefix = "http://jörn.loves.encoding.problems/"
ns = Namespace(prefix)
self.assertEqual(ns, str(prefix))
self.assert_(ns["jörn"].startswith(ns))
class ClosedNamespaceTest(unittest.TestCase):
def setUp(self):
self.ns_str = "http://example.com/name/space/"
self.ns = ClosedNamespace(self.ns_str, ["a", "b", "c"])
def test_repr(self):
# NOTE: this assumes ns_str has no characthers that need escaping
self.assertIn(self.ns_str, f"{self.ns!r}")
@expectedFailure
def test_repr_ef(self):
"""
This fails because ClosedNamespace repr does not represent the second argument
"""
self.assertEqual(self.ns, eval(f"{self.ns!r}"))
def test_str(self):
self.assertEqual(self.ns_str, f"{self.ns}")
def test_member(self):
self.assertEqual(f"{self.ns_str}a", f"{self.ns.a}")
def test_missing_member(self):
with self.assertRaises(AttributeError) as context:
f"{self.ns.missing}"
self.assertIn("missing", f"{context.exception}")
class URIPatternTest(unittest.TestCase):
def setUp(self):
self.pattern_str = "http://example.org/%s/%d/resource"
self.pattern = URIPattern(self.pattern_str)
def test_repr(self):
# NOTE: this assumes pattern_str has no characthers that need escaping
self.assertIn(self.pattern_str, f"{self.pattern!r}")
self.assertEqual(self.pattern, eval(f"{self.pattern!r}"))
def test_format(self):
self.assertEqual(
"http://example.org/foo/100/resource", str(self.pattern % ("foo", 100))
)
class NamespacePrefixTest(unittest.TestCase):
def test_compute_qname(self):
"""Test sequential assignment of unknown prefixes"""
g = Graph()
self.assertEqual(
g.compute_qname(URIRef("http://foo/bar/baz")),
("ns1", URIRef("http://foo/bar/"), "baz"),
)
self.assertEqual(
g.compute_qname(URIRef("http://foo/bar#baz")),
("ns2", URIRef("http://foo/bar#"), "baz"),
)
# should skip to ns4 when ns3 is already assigned
g.bind("ns3", URIRef("http://example.org/"))
self.assertEqual(
g.compute_qname(URIRef("http://blip/blop")),
("ns4", URIRef("http://blip/"), "blop"),
)
# should return empty qnames correctly
self.assertEqual(
g.compute_qname(URIRef("http://foo/bar/")),
("ns1", URIRef("http://foo/bar/"), ""),
)
# should compute qnames of URNs correctly as well
self.assertEqual(
g.compute_qname(URIRef("urn:ISSN:0167-6423")),
("ns5", URIRef("urn:ISSN:"), "0167-6423"),
)
self.assertEqual(
g.compute_qname(URIRef("urn:ISSN:")),
("ns5", URIRef("urn:ISSN:"), ""),
)
# should compute qnames with parenthesis correctly
self.assertEqual(
g.compute_qname(URIRef("http://foo/bar/name_with_(parenthesis)")),
("ns1", URIRef("http://foo/bar/"), "name_with_(parenthesis)"),
)
def test_reset(self):
data = (
"@prefix a: <http://example.org/a> .\n"
"a: <http://example.org/b> <http://example.org/c> ."
)
graph = Graph().parse(data=data, format="turtle")
for p, n in tuple(graph.namespaces()):
graph.store._Memory__namespace.pop(p)
graph.store._Memory__prefix.pop(n)
graph.namespace_manager.reset()
self.assertFalse(tuple(graph.namespaces()))
u = URIRef("http://example.org/a")
prefix, namespace, name = graph.namespace_manager.compute_qname(
u, generate=True
)
self.assertNotEqual(namespace, u)
def test_reset_preserve_prefixes(self):
data = (
"@prefix a: <http://example.org/a> .\n"
"a: <http://example.org/b> <http://example.org/c> ."
)
graph = Graph().parse(data=data, format="turtle")
graph.namespace_manager.reset()
self.assertTrue(tuple(graph.namespaces()))
u = URIRef("http://example.org/a")
prefix, namespace, name = graph.namespace_manager.compute_qname(
u, generate=True
)
self.assertEqual(namespace, u)
def test_n3(self):
g = Graph()
g.add(
(
URIRef("http://example.com/foo"),
URIRef("http://example.com/bar"),
URIRef("http://example.com/baz"),
)
)
n3 = g.serialize(format="n3", encoding="latin-1")
# Gunnar disagrees that this is right:
# self.assertTrue("<http://example.com/foo> ns1:bar <http://example.com/baz> ." in n3)
# as this is much prettier, and ns1 is already defined:
self.assertTrue(b"ns1:foo ns1:bar ns1:baz ." in n3)
def test_n32(self):
# this test not generating prefixes for subjects/objects
g = Graph()
g.add(
(
URIRef("http://example1.com/foo"),
URIRef("http://example2.com/bar"),
URIRef("http://example3.com/baz"),
)
)
n3 = g.serialize(format="n3", encoding="latin-1")
self.assertTrue(
b"<http://example1.com/foo> ns1:bar <http://example3.com/baz> ." in n3
)
def test_closed_namespace(self):
"""Tests terms both in an out of the ClosedNamespace FOAF"""
def add_not_in_namespace(s):
with self.assertRaises(AttributeError):
return FOAF[s]
# a non-existent FOAF property
add_not_in_namespace("blah")
# a deprecated FOAF property
# add_not_in_namespace('firstName')
self.assertEqual(
FOAF["firstName"],
URIRef("http://xmlns.com/foaf/0.1/firstName"),
)
warn("DefinedNamespace does not address deprecated properties")
# a property name within the FOAF namespace
self.assertEqual(
FOAF.givenName,
URIRef("http://xmlns.com/foaf/0.1/givenName"),
)
# namescape can be used as str
self.assertTrue(FOAF.givenName.startswith(FOAF))
def test_contains_method(self):
"""Tests for Namespace.__contains__() methods."""
ref = URIRef("http://www.w3.org/ns/shacl#Info")
self.assertTrue(
type(SH) == DefinedNamespaceMeta,
f"SH no longer a DefinedNamespaceMeta (instead it is now {type(SH)}, update test.",
)
self.assertTrue(ref in SH, "sh:Info not in SH")
ref = URIRef("http://www.w3.org/2000/01/rdf-schema#label")
self.assertTrue(
ref in RDFS, "ClosedNamespace(RDFS) does not include rdfs:label"
)
ref = URIRef("http://www.w3.org/2000/01/rdf-schema#example")
self.assertFalse(
ref in RDFS, "ClosedNamespace(RDFS) includes out-of-ns member rdfs:example"
)
ref = URIRef("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")
self.assertTrue(ref in RDF, "_RDFNamespace does not include rdf:type")
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