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"""
Part of the bsfs test suite.
A copy of the license is provided with the project.
Author: Matthias Baumgartner, 2022
"""
# imports
import rdflib
import unittest
# bsie imports
from bsfs import schema as _schema
from bsfs.namespace import ns
from bsfs.triple_store.sparql import SparqlStore
from bsfs.utils import errors, URI
# objects to test
from bsfs.graph.nodes import Nodes
## code ##
class TestNodes(unittest.TestCase):
def setUp(self):
# initialize backend
self.backend = SparqlStore()
self.backend.schema = _schema.from_string('''
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix xsd: <http://www.w3.org/2001/XMLSchema#>
prefix bsfs: <http://bsfs.ai/schema/>
prefix bsm: <http://bsfs.ai/schema/Meta#>
prefix bse: <http://bsfs.ai/schema/Entity#>
prefix bst: <http://bsfs.ai/schema/Tag#>
bsfs:Entity rdfs:subClassOf bsfs:Node .
bsfs:Tag rdfs:subClassOf bsfs:Node .
bsfs:User rdfs:subClassOf bsfs:Node .
xsd:string rdfs:subClassOf bsfs:Literal .
bsfs:Number rdfs:subClassOf bsfs:Literal .
xsd:integer rdfs:subClassOf bsfs:Number .
# predicates mandated by Nodes
bsm:t_created rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Node ;
rdfs:range xsd:integer ;
bsfs:unique "true"^^xsd:boolean .
# additionally defined predicates
bse:comment rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Entity ;
rdfs:range xsd:string ;
bsfs:unique "false"^^xsd:boolean .
bse:filesize rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Entity ;
rdfs:range xsd:integer ;
bsfs:unique "true"^^xsd:boolean .
bse:tag rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Entity ;
rdfs:range bsfs:Tag ;
bsfs:unique "false"^^xsd:boolean .
bse:author rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Entity ;
rdfs:range bsfs:User ;
bsfs:unique "true"^^xsd:boolean .
bst:representative rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Tag ;
rdfs:range bsfs:Entity ;
bsfs:unique "true"^^xsd:boolean .
''')
self.schema_triples = {
# schema hierarchy
(rdflib.URIRef(ns.bsfs.Entity), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Node)),
(rdflib.URIRef(ns.bsfs.Tag), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Node)),
(rdflib.URIRef(ns.bsfs.User), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Node)),
(rdflib.URIRef(ns.xsd.string), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Literal)),
(rdflib.URIRef(ns.bsfs.Number), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Literal)),
(rdflib.URIRef(ns.xsd.integer), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Number)),
(rdflib.URIRef(ns.bsm.t_created), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Predicate)),
(rdflib.URIRef(ns.bse.comment), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Predicate)),
(rdflib.URIRef(ns.bse.filesize), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Predicate)),
(rdflib.URIRef(ns.bse.tag), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Predicate)),
(rdflib.URIRef(ns.bse.author), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Predicate)),
(rdflib.URIRef('http://bsfs.ai/schema/Tag#representative'), rdflib.RDFS.subClassOf, rdflib.URIRef(ns.bsfs.Predicate)),
}
# Nodes constructor args
self.user = URI('http://example.com/me')
# set args
self.tag_type = self.backend.schema.node(ns.bsfs.Tag)
self.ent_type = self.backend.schema.node(ns.bsfs.Entity)
self.user_type = self.backend.schema.node(ns.bsfs.User)
self.p_filesize = self.backend.schema.predicate(ns.bse.filesize)
self.p_author = self.backend.schema.predicate(ns.bse.author)
self.p_tag = self.backend.schema.predicate(ns.bse.tag)
self.p_representative = self.backend.schema.predicate(URI('http://bsfs.ai/schema/Tag#representative'))
self.t_created = self.backend.schema.predicate(ns.bsm.t_created)
self.ent_ids = {
URI('http://example.com/me/entity#1234'),
URI('http://example.com/me/entity#4321'),
}
self.tag_ids = {
URI('http://example.com/me/tag#1234'),
URI('http://example.com/me/tag#4321'),
}
def test_str(self):
# str baseline
nodes = Nodes(self.backend, self.user, self.ent_type, self.ent_ids)
self.assertEqual(str(nodes), f'Nodes({self.ent_type}, {self.ent_ids})')
self.assertEqual(repr(nodes), f'Nodes({self.backend}, {self.user}, {self.ent_type}, {self.ent_ids})')
# str respects node_type
nodes = Nodes(self.backend, self.user, self.tag_type, self.tag_ids)
self.assertEqual(str(nodes), f'Nodes({self.tag_type}, {self.tag_ids})')
self.assertEqual(repr(nodes), f'Nodes({self.backend}, {self.user}, {self.tag_type}, {self.tag_ids})')
# str respects guids
nodes = Nodes(self.backend, self.user, self.ent_type, {URI('http://example.com/me/entity#foo')})
self.assertEqual(str(nodes), f'Nodes({self.ent_type}, {{\'http://example.com/me/entity#foo\'}})')
self.assertEqual(repr(nodes), f'Nodes({self.backend}, {self.user}, {self.ent_type}, {{\'http://example.com/me/entity#foo\'}})')
# repr respects backend
class Foo(SparqlStore): pass
backend = Foo.Open()
backend.schema = self.backend.schema
nodes = Nodes(backend, self.user, self.ent_type, self.ent_ids)
self.assertEqual(repr(nodes), f'Nodes({backend}, {self.user}, {self.ent_type}, {self.ent_ids})')
# repr respects user
nodes = Nodes(self.backend, URI('http://example.com/you'), self.ent_type, self.ent_ids)
self.assertEqual(repr(nodes), f'Nodes({self.backend}, http://example.com/you, {self.ent_type}, {self.ent_ids})')
def test_equality(self):
nodes = Nodes(self.backend, self.user, self.ent_type, self.ent_ids)
# instance is equal to itself
self.assertEqual(nodes, nodes)
self.assertEqual(hash(nodes), hash(nodes))
# instance is equal to a clone
self.assertEqual(nodes, Nodes(self.backend, self.user, self.ent_type, self.ent_ids))
self.assertEqual(Nodes(self.backend, self.user, self.ent_type, self.ent_ids), nodes)
self.assertEqual(hash(nodes), hash(Nodes(self.backend, self.user, self.ent_type, self.ent_ids)))
# equality respects backend
backend = SparqlStore.Open()
backend.schema = self.backend.schema
self.assertNotEqual(nodes, Nodes(backend, self.user, self.ent_type, self.ent_ids))
self.assertNotEqual(hash(nodes), hash(Nodes(backend, self.user, self.ent_type, self.ent_ids)))
# equality respects user
self.assertNotEqual(nodes, Nodes(self.backend, URI('http://example.com/you'), self.ent_type, self.ent_ids))
self.assertNotEqual(hash(nodes), hash(Nodes(self.backend, URI('http://example.com/you'), self.ent_type, self.ent_ids)))
# equality respects node_type
self.assertNotEqual(nodes, Nodes(self.backend, self.user, self.tag_type, self.ent_ids))
self.assertNotEqual(hash(nodes), hash(Nodes(self.backend, self.user, self.tag_type, self.ent_ids)))
# equality respects guids
self.assertNotEqual(nodes, Nodes(self.backend, self.user, self.ent_type, self.tag_ids))
self.assertNotEqual(hash(nodes), hash(Nodes(self.backend, self.user, self.ent_type, self.tag_ids)))
def test_properties(self):
# node_type
self.assertEqual(self.ent_type, Nodes(
self.backend, self.user, self.ent_type, self.ent_ids).node_type)
self.assertEqual(self.tag_type, Nodes(
self.backend, self.user, self.tag_type, self.tag_ids).node_type)
# guids
self.assertSetEqual(self.ent_ids, set(Nodes(
self.backend, self.user, self.ent_type, self.ent_ids).guids))
self.assertSetEqual(self.tag_ids, set(Nodes(
self.backend, self.user, self.tag_type, self.tag_ids).guids))
def test__ensure_nodes(self):
nodes = Nodes(self.backend, self.user, self.ent_type, self.ent_ids)
# missing nodes are created
self.assertSetEqual(self.ent_ids, nodes._ensure_nodes(self.ent_type, self.ent_ids))
# get creation time from backend manually
time_triples = list(self.backend._graph.objects(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.t_created.uri)))
t_ent_created = float(time_triples[0]) if len(time_triples) > 0 else 0.0
# check triples
self.assertSetEqual(set(self.backend._graph), self.schema_triples | {
# entity definitions
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
# bookkeeping
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
})
# existing nodes remain unchanged
self.assertSetEqual(self.ent_ids, nodes._ensure_nodes(self.ent_type, self.ent_ids))
self.assertSetEqual(set(self.backend._graph), self.schema_triples | {
# entity definitions
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
# bookkeeping
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
})
# type and guids don't need to match the node instance's members
self.assertSetEqual(self.tag_ids, nodes._ensure_nodes(self.tag_type, self.tag_ids))
# get creation time from backend manually
time_triples = list(self.backend._graph.objects(rdflib.URIRef('http://example.com/me/tag#1234'), rdflib.URIRef(self.t_created.uri)))
t_tag_created = float(time_triples[0]) if len(time_triples) > 0 else 0.0
# check triples
self.assertSetEqual(set(self.backend._graph), self.schema_triples | {
# previous triples
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
# new triples
(rdflib.URIRef('http://example.com/me/tag#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Tag')),
(rdflib.URIRef('http://example.com/me/tag#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Tag')),
(rdflib.URIRef('http://example.com/me/tag#1234'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_tag_created, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/tag#4321'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_tag_created, datatype=rdflib.XSD.integer)),
})
def test___set(self):
# setup
nodes = Nodes(self.backend, self.user, self.ent_type, {URI('http://example.com/me/entity#1234'), URI('http://example.com/me/entity#4321')})
self.assertSetEqual(set(self.backend._graph), self.schema_triples | set())
set_ = nodes._Nodes__set
# node_type must match predicate's domain
self.assertRaises(errors.ConsistencyError, set_, self.p_representative.uri, self.ent_ids)
# cannot set protected predicates
self.assertRaises(errors.PermissionDeniedError, set_, self.t_created.uri, 1234)
# set literal value
set_(self.p_filesize.uri, 1234)
# get creation time from backend manually
time_triples = list(self.backend._graph.objects(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.t_created.uri)))
t_ent_created = float(time_triples[0]) if len(time_triples) > 0 else 0.0
# verify triples
self.assertSetEqual(set(self.backend._graph), self.schema_triples | {
# entity definitions
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
# bookkeeping
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
# literals
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_filesize.uri), rdflib.Literal(1234, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_filesize.uri), rdflib.Literal(1234, datatype=rdflib.XSD.integer)),
})
# set node value
tags = Nodes(self.backend, self.user, self.tag_type, {URI('http://example.com/me/tag#1234'), URI('http://example.com/me/tag#4321')})
set_(self.p_tag.uri, tags)
# get creation time from backend manually
time_triples = list(self.backend._graph.objects(rdflib.URIRef('http://example.com/me/tag#1234'), rdflib.URIRef(self.t_created.uri)))
t_tag_created = float(time_triples[0]) if len(time_triples) > 0 else 0.0
# verify triples
self.assertSetEqual(set(self.backend._graph), self.schema_triples | {
# previous values
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_filesize.uri), rdflib.Literal(1234, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_filesize.uri), rdflib.Literal(1234, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_ent_created, datatype=rdflib.XSD.integer)),
# tag definitions
(rdflib.URIRef('http://example.com/me/tag#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Tag')),
(rdflib.URIRef('http://example.com/me/tag#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Tag')),
# tag bookkeeping
(rdflib.URIRef('http://example.com/me/tag#1234'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_tag_created, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/tag#4321'), rdflib.URIRef(self.t_created.uri), rdflib.Literal(t_tag_created, datatype=rdflib.XSD.integer)),
# entity -> tag links
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#1234')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#1234')),
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#4321')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#4321')),
})
# value must be a nodes instance
self.assertRaises(TypeError, set_, self.p_tag.uri, 'foobar')
self.assertRaises(TypeError, set_, self.p_tag.uri, self.tag_ids)
self.assertRaises(TypeError, set_, self.p_tag.uri, URI('http://example.com/me/tag#1234'))
# value's node_type must match the predicate's range
self.assertRaises(errors.ConsistencyError, set_, self.p_tag.uri,
Nodes(self.backend, self.user, self.ent_type, self.ent_ids))
def test_set(self):
self.assertSetEqual(set(self.backend._graph), self.schema_triples | set())
nodes = Nodes(self.backend, self.user, self.ent_type, self.ent_ids)
# can set literal values
self.assertEqual(nodes, nodes.set(self.p_filesize.uri, 1234))
self.assertTrue(set(self.backend._graph).issuperset({
# nodes exist
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
# links exist
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_filesize.uri), rdflib.Literal(1234, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_filesize.uri), rdflib.Literal(1234, datatype=rdflib.XSD.integer)),
}))
# can set node values
self.assertEqual(nodes, nodes.set(self.p_tag.uri, Nodes(self.backend, self.user, self.tag_type, self.tag_ids)))
self.assertTrue(set(self.backend._graph).issuperset({
# nodes exist
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/tag#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Tag')),
(rdflib.URIRef('http://example.com/me/tag#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Tag')),
# links exist
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#1234')),
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#4321')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#1234')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#4321')),
}))
# cannot set protected predicate
curr = set(self.backend._graph)
self.assertRaises(errors.PermissionDeniedError, nodes.set, self.t_created.uri, 12345)
self.assertSetEqual(curr, set(self.backend._graph))
# predicate.domain must match node_type
self.assertRaises(errors.ConsistencyError, nodes.set, self.p_representative.uri, nodes)
self.assertSetEqual(curr, set(self.backend._graph))
# value's node_type must match predicate's range
self.assertRaises(errors.ConsistencyError, nodes.set, self.p_tag.uri, nodes)
self.assertSetEqual(curr, set(self.backend._graph))
# value type must match predicate's range type
self.assertRaises(TypeError, nodes.set, self.p_tag.uri, 'invalid')
self.assertSetEqual(curr, set(self.backend._graph))
# cannot assing multiple values to unique predicate
self.assertRaises(ValueError, nodes.set, self.p_author.uri,
Nodes(self.backend, self.user, self.user_type, {URI('http://example.com/me/user#1234'), URI('http://example.com/me/user#4321')}))
self.assertSetEqual(curr, set(self.backend._graph))
def test_set_from_iterable(self):
self.assertSetEqual(set(self.backend._graph), self.schema_triples | set())
nodes = Nodes(self.backend, self.user, self.ent_type, self.ent_ids)
# can set literal and node values simultaneously
self.assertEqual(nodes, nodes.set_from_iterable({
self.p_filesize.uri: 1234,
self.p_tag.uri: Nodes(self.backend, self.user, self.tag_type, self.tag_ids),
}.items()))
self.assertTrue(set(self.backend._graph).issuperset({
# nodes exist
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Entity')),
(rdflib.URIRef('http://example.com/me/tag#1234'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Tag')),
(rdflib.URIRef('http://example.com/me/tag#4321'), rdflib.RDF.type, rdflib.URIRef('http://bsfs.ai/schema/Tag')),
# links exist
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_filesize.uri), rdflib.Literal(1234, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_filesize.uri), rdflib.Literal(1234, datatype=rdflib.XSD.integer)),
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#1234')),
(rdflib.URIRef('http://example.com/me/entity#1234'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#4321')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#1234')),
(rdflib.URIRef('http://example.com/me/entity#4321'), rdflib.URIRef(self.p_tag.uri), rdflib.URIRef('http://example.com/me/tag#4321')),
}))
# cannot set protected predicate
curr = set(self.backend._graph)
self.assertRaises(errors.PermissionDeniedError, nodes.set_from_iterable, ((self.p_filesize.uri, 1234), (self.t_created.uri, 12345)))
self.assertSetEqual(curr, set(self.backend._graph))
# predicate.domain must match node_type
self.assertRaises(errors.ConsistencyError, nodes.set_from_iterable, ((self.p_filesize.uri, 1234), (self.p_representative.uri, nodes)))
self.assertSetEqual(curr, set(self.backend._graph))
# value's node_type must match predicate's range
self.assertRaises(errors.ConsistencyError, nodes.set_from_iterable, ((self.p_filesize.uri, 1234), (self.p_tag.uri, nodes)))
self.assertSetEqual(curr, set(self.backend._graph))
# value type must match predicate's range type
self.assertRaises(TypeError, nodes.set_from_iterable, ((self.p_filesize.uri, 1234), (self.p_tag.uri, 'invalid')))
self.assertSetEqual(curr, set(self.backend._graph))
# cannot assing multiple values to unique predicate
self.assertRaises(ValueError, nodes.set_from_iterable, ((self.p_filesize.uri, 1234),
(self.p_author.uri, Nodes(self.backend, self.user, self.user_type, {URI('http://example.com/me/user#1234'), URI('http://example.com/me/user#4321')}))))
self.assertSetEqual(curr, set(self.backend._graph))
## main ##
if __name__ == '__main__':
unittest.main()
## EOF ##
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