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from __future__ import annotations
import os
import shutil
import sys
import unittest
from tempfile import mkdtemp, mkstemp
from typing import Optional
import pytest
from rdflib import BNode, Dataset, Graph, URIRef, plugin
from rdflib.store import Store
class ContextTestCase(unittest.TestCase):
store = "default"
slow = True
tmppath: Optional[str] = None
def setUp(self):
try:
self.graph = Dataset(store=self.store, default_union=True)
except ImportError:
pytest.skip("Dependencies for store '%s' not available!" % self.store)
if self.store == "SQLite":
_, self.tmppath = mkstemp(prefix="test", dir="/tmp", suffix=".sqlite")
else:
self.tmppath = mkdtemp()
self.graph.open(self.tmppath, create=True)
self.michel = URIRef("michel")
self.tarek = URIRef("tarek")
self.bob = URIRef("bob")
self.likes = URIRef("likes")
self.hates = URIRef("hates")
self.pizza = URIRef("pizza")
self.cheese = URIRef("cheese")
self.c1 = URIRef("context-1")
self.c2 = URIRef("context-2")
# delete the graph for each test!
self.graph.remove((None, None, None))
def tearDown(self):
self.graph.close()
if os.path.isdir(self.tmppath):
shutil.rmtree(self.tmppath)
else:
os.remove(self.tmppath)
def add_stuff(self):
tarek = self.tarek
michel = self.michel
bob = self.bob
likes = self.likes
hates = self.hates
pizza = self.pizza
cheese = self.cheese
c1 = self.c1
graph = Graph(self.graph.store, c1)
graph.add((tarek, likes, pizza))
graph.add((tarek, likes, cheese))
graph.add((michel, likes, pizza))
graph.add((michel, likes, cheese))
graph.add((bob, likes, cheese))
graph.add((bob, hates, pizza))
graph.add((bob, hates, michel)) # gasp!
def remove_stuff(self):
tarek = self.tarek
michel = self.michel
bob = self.bob
likes = self.likes
hates = self.hates
pizza = self.pizza
cheese = self.cheese
c1 = self.c1
graph = Graph(self.graph.store, c1)
graph.remove((tarek, likes, pizza))
graph.remove((tarek, likes, cheese))
graph.remove((michel, likes, pizza))
graph.remove((michel, likes, cheese))
graph.remove((bob, likes, cheese))
graph.remove((bob, hates, pizza))
graph.remove((bob, hates, michel)) # gasp!
def add_stuff_in_multiple_contexts(self):
c1 = self.c1
c2 = self.c2
triple = (self.pizza, self.hates, self.tarek) # revenge!
# add to default context
self.graph.add(triple)
# add to context 1
graph = Graph(self.graph.store, c1)
graph.add(triple)
# add to context 2
graph = Graph(self.graph.store, c2)
graph.add(triple)
def test_conjunction(self):
if self.store == "SQLite":
pytest.skip("Skipping known issue with __len__")
self.add_stuff_in_multiple_contexts()
triple = (self.pizza, self.likes, self.pizza)
# add to context 1
graph = Graph(self.graph.store, self.c1)
graph.add(triple)
self.assertEqual(len(self.graph), len(graph))
def test_add(self):
self.add_stuff()
def test_remove(self):
self.add_stuff()
self.remove_stuff()
def test_len_in_one_context(self):
c1 = self.c1
# make sure context is empty
self.graph.remove_context(self.graph.get_context(c1))
graph = Graph(self.graph.store, c1)
old_len = len(self.graph)
for i in range(0, 10):
graph.add((BNode(), self.hates, self.hates))
self.assertEqual(len(graph), old_len + 10)
self.assertEqual(len(self.graph.get_context(c1)), old_len + 10)
self.graph.remove_context(self.graph.get_context(c1))
self.assertEqual(len(self.graph), old_len)
self.assertEqual(len(graph), 0)
def test_len_in_multiple_contexts(self):
if self.store == "SQLite":
pytest.skip("Skipping known issue with __len__")
old_len = len(self.graph)
self.add_stuff_in_multiple_contexts()
# add_stuff_in_multiple_contexts is adding the same triple to
# three different contexts. So it's only + 1
self.assertEqual(len(self.graph), old_len + 1)
graph = Graph(self.graph.store, self.c1)
self.assertEqual(len(graph), old_len + 1)
def test_remove_in_multiple_contexts(self):
c1 = self.c1
c2 = self.c2
triple = (self.pizza, self.hates, self.tarek) # revenge!
self.add_stuff_in_multiple_contexts()
# triple should be still in store after removing it from c1 + c2
self.assertTrue(triple in self.graph)
graph = Graph(self.graph.store, c1)
graph.remove(triple)
self.assertTrue(triple in self.graph)
graph = Graph(self.graph.store, c2)
graph.remove(triple)
self.assertTrue(triple in self.graph)
self.graph.remove(triple)
# now gone!
self.assertTrue(triple not in self.graph)
# add again and see if remove without context removes all triples!
self.add_stuff_in_multiple_contexts()
self.graph.remove(triple)
self.assertTrue(triple not in self.graph)
def test_contexts(self):
triple = (self.pizza, self.hates, self.tarek) # revenge!
self.add_stuff_in_multiple_contexts()
def cid(c):
return c.identifier
self.assertTrue(self.c1 in map(cid, self.graph.contexts()))
self.assertTrue(self.c2 in map(cid, self.graph.contexts()))
context_list = list(map(cid, list(self.graph.contexts(triple))))
self.assertTrue(self.c1 in context_list, (self.c1, context_list))
self.assertTrue(self.c2 in context_list, (self.c2, context_list))
def test_remove_context(self):
c1 = self.c1
self.add_stuff_in_multiple_contexts()
self.assertEqual(len(Graph(self.graph.store, c1)), 1)
self.assertEqual(len(self.graph.get_context(c1)), 1)
self.graph.remove_context(self.graph.get_context(c1))
self.assertTrue(self.c1 not in self.graph.contexts())
def test_remove_any(self):
any = None
self.add_stuff_in_multiple_contexts()
self.graph.remove((any, any, any))
self.assertEqual(len(self.graph), 0)
def test_triples(self):
tarek = self.tarek
michel = self.michel
bob = self.bob
likes = self.likes
hates = self.hates
pizza = self.pizza
cheese = self.cheese
c1 = self.c1
asserte = self.assertEqual
triples = self.graph.triples
graph = self.graph
c1graph = Graph(self.graph.store, c1)
c1triples = c1graph.triples
any = None
self.add_stuff()
# unbound subjects with context
asserte(len(list(c1triples((any, likes, pizza)))), 2)
asserte(len(list(c1triples((any, hates, pizza)))), 1)
asserte(len(list(c1triples((any, likes, cheese)))), 3)
asserte(len(list(c1triples((any, hates, cheese)))), 0)
# unbound subjects without context, same results!
asserte(len(list(triples((any, likes, pizza)))), 2)
asserte(len(list(triples((any, hates, pizza)))), 1)
asserte(len(list(triples((any, likes, cheese)))), 3)
asserte(len(list(triples((any, hates, cheese)))), 0)
# unbound objects with context
asserte(len(list(c1triples((michel, likes, any)))), 2)
asserte(len(list(c1triples((tarek, likes, any)))), 2)
asserte(len(list(c1triples((bob, hates, any)))), 2)
asserte(len(list(c1triples((bob, likes, any)))), 1)
# unbound objects without context, same results!
asserte(len(list(triples((michel, likes, any)))), 2)
asserte(len(list(triples((tarek, likes, any)))), 2)
asserte(len(list(triples((bob, hates, any)))), 2)
asserte(len(list(triples((bob, likes, any)))), 1)
# unbound predicates with context
asserte(len(list(c1triples((michel, any, cheese)))), 1)
asserte(len(list(c1triples((tarek, any, cheese)))), 1)
asserte(len(list(c1triples((bob, any, pizza)))), 1)
asserte(len(list(c1triples((bob, any, michel)))), 1)
# unbound predicates without context, same results!
asserte(len(list(triples((michel, any, cheese)))), 1)
asserte(len(list(triples((tarek, any, cheese)))), 1)
asserte(len(list(triples((bob, any, pizza)))), 1)
asserte(len(list(triples((bob, any, michel)))), 1)
# unbound subject, objects with context
asserte(len(list(c1triples((any, hates, any)))), 2)
asserte(len(list(c1triples((any, likes, any)))), 5)
# unbound subject, objects without context, same results!
asserte(len(list(triples((any, hates, any)))), 2)
asserte(len(list(triples((any, likes, any)))), 5)
# unbound predicates, objects with context
asserte(len(list(c1triples((michel, any, any)))), 2)
asserte(len(list(c1triples((bob, any, any)))), 3)
asserte(len(list(c1triples((tarek, any, any)))), 2)
# unbound predicates, objects without context, same results!
asserte(len(list(triples((michel, any, any)))), 2)
asserte(len(list(triples((bob, any, any)))), 3)
asserte(len(list(triples((tarek, any, any)))), 2)
# unbound subjects, predicates with context
asserte(len(list(c1triples((any, any, pizza)))), 3)
asserte(len(list(c1triples((any, any, cheese)))), 3)
asserte(len(list(c1triples((any, any, michel)))), 1)
# unbound subjects, predicates without context, same results!
asserte(len(list(triples((any, any, pizza)))), 3)
asserte(len(list(triples((any, any, cheese)))), 3)
asserte(len(list(triples((any, any, michel)))), 1)
# all unbound with context
asserte(len(list(c1triples((any, any, any)))), 7)
# all unbound without context, same result!
asserte(len(list(triples((any, any, any)))), 7)
for c in [graph, self.graph.get_context(c1)]:
# unbound subjects
asserte(set(c.subjects(likes, pizza)), {michel, tarek})
asserte(set(c.subjects(hates, pizza)), {bob})
asserte(set(c.subjects(likes, cheese)), {tarek, bob, michel})
asserte(set(c.subjects(hates, cheese)), set())
# unbound objects
asserte(set(c.objects(michel, likes)), {cheese, pizza})
asserte(set(c.objects(tarek, likes)), {cheese, pizza})
asserte(set(c.objects(bob, hates)), {michel, pizza})
asserte(set(c.objects(bob, likes)), {cheese})
# unbound predicates
asserte(set(c.predicates(michel, cheese)), {likes})
asserte(set(c.predicates(tarek, cheese)), {likes})
asserte(set(c.predicates(bob, pizza)), {hates})
asserte(set(c.predicates(bob, michel)), {hates})
asserte(set(c.subject_objects(hates)), {(bob, pizza), (bob, michel)})
asserte(
set(c.subject_objects(likes)),
{
(tarek, cheese),
(michel, cheese),
(michel, pizza),
(bob, cheese),
(tarek, pizza),
},
)
asserte(set(c.predicate_objects(michel)), {(likes, cheese), (likes, pizza)})
asserte(
set(c.predicate_objects(bob)),
{(likes, cheese), (hates, pizza), (hates, michel)},
)
asserte(set(c.predicate_objects(tarek)), {(likes, cheese), (likes, pizza)})
asserte(
set(c.subject_predicates(pizza)),
{(bob, hates), (tarek, likes), (michel, likes)},
)
asserte(
set(c.subject_predicates(cheese)),
{(bob, likes), (tarek, likes), (michel, likes)},
)
asserte(set(c.subject_predicates(michel)), {(bob, hates)})
d = set()
for x in c:
d.add(x[0:3])
asserte(
set(d),
{
(bob, hates, michel),
(bob, likes, cheese),
(tarek, likes, pizza),
(michel, likes, pizza),
(michel, likes, cheese),
(bob, hates, pizza),
(tarek, likes, cheese),
},
)
# remove stuff and make sure the graph is empty again
self.remove_stuff()
asserte(len(list(c1triples((any, any, any)))), 0)
asserte(len(list(triples((any, any, any)))), 0)
# dynamically create classes for each registered Store
pluginname = None
if __name__ == "__main__":
if len(sys.argv) > 1:
pluginname = sys.argv[1]
tests = 0
for s in plugin.plugins(pluginname, Store):
if s.name in (
"default",
"Memory",
"Auditable",
"Concurrent",
"SPARQLStore",
"SPARQLUpdateStore",
):
continue # these are tested by default
if not s.getClass().context_aware:
continue
locals()["t%d" % tests] = type(
"%sContextTestCase" % s.name, (ContextTestCase,), {"store": s.name}
)
tests += 1
if __name__ == "__main__":
unittest.main()
|
