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import unittest
from tempfile import mkdtemp
from rdflib.graph import Graph, ConjunctiveGraph
from rdflib.term import URIRef, BNode
class ContextTestCase(unittest.TestCase):
#store = 'Memory'
store = 'default'
slowtest = True
def setUp(self):
self.graph = ConjunctiveGraph(store=self.store)
if self.store == "MySQL":
from mysql import configString
from rdflib.store.MySQL import MySQL
path=configString
MySQL().destroy(path)
else:
path = a_tmp_dir = mkdtemp()
self.graph.open(path, create=True)
self.michel = URIRef(u'michel')
self.tarek = URIRef(u'tarek')
self.bob = URIRef(u'bob')
self.likes = URIRef(u'likes')
self.hates = URIRef(u'hates')
self.pizza = URIRef(u'pizza')
self.cheese = URIRef(u'cheese')
self.c1 = URIRef(u'context-1')
self.c2 = URIRef(u'context-2')
# delete the graph for each test!
self.graph.remove((None, None, None))
def tearDown(self):
self.graph.close()
def get_context(self, identifier):
assert isinstance(identifier, URIRef) or \
isinstance(identifier, BNode), type(identifier)
return Graph(store=self.graph.store, identifier=identifier,
namespace_manager=self)
def addStuff(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 removeStuff(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 addStuffInMultipleContexts(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 testConjunction(self):
self.addStuffInMultipleContexts()
triple = (self.pizza, self.likes, self.pizza)
# add to context 1
graph = Graph(self.graph.store, self.c1)
graph.add(triple)
self.assertEquals(len(self.graph), len(graph))
def testAdd(self):
self.addStuff()
def testRemove(self):
self.addStuff()
self.removeStuff()
def testLenInOneContext(self):
c1 = self.c1
# make sure context is empty
self.graph.remove_context(self.get_context(c1))
graph = Graph(self.graph.store, c1)
oldLen = len(self.graph)
for i in range(0, 10):
graph.add((BNode(), self.hates, self.hates))
self.assertEquals(len(graph), oldLen + 10)
self.assertEquals(len(self.get_context(c1)), oldLen + 10)
self.graph.remove_context(self.get_context(c1))
self.assertEquals(len(self.graph), oldLen)
self.assertEquals(len(graph), 0)
def testLenInMultipleContexts(self):
oldLen = len(self.graph)
self.addStuffInMultipleContexts()
# addStuffInMultipleContexts is adding the same triple to
# three different contexts. So it's only + 1
self.assertEquals(len(self.graph), oldLen + 1)
graph = Graph(self.graph.store, self.c1)
self.assertEquals(len(graph), oldLen + 1)
def testRemoveInMultipleContexts(self):
c1 = self.c1
c2 = self.c2
triple = (self.pizza, self.hates, self.tarek) # revenge!
self.addStuffInMultipleContexts()
# triple should be still in store after removing it from c1 + c2
self.assert_(triple in self.graph)
graph = Graph(self.graph.store, c1)
graph.remove(triple)
self.assert_(triple in self.graph)
graph = Graph(self.graph.store, c2)
graph.remove(triple)
self.assert_(triple in self.graph)
self.graph.remove(triple)
# now gone!
self.assert_(triple not in self.graph)
# add again and see if remove without context removes all triples!
self.addStuffInMultipleContexts()
self.graph.remove(triple)
self.assert_(triple not in self.graph)
def testContexts(self):
triple = (self.pizza, self.hates, self.tarek) # revenge!
self.addStuffInMultipleContexts()
def cid(c):
return c.identifier
self.assert_(self.c1 in map(cid, self.graph.contexts()))
self.assert_(self.c2 in map(cid, self.graph.contexts()))
contextList = map(cid, list(self.graph.contexts(triple)))
self.assert_(self.c1 in contextList)
self.assert_(self.c2 in contextList)
def testRemoveContext(self):
c1 = self.c1
self.addStuffInMultipleContexts()
self.assertEquals(len(Graph(self.graph.store, c1)), 1)
self.assertEquals(len(self.get_context(c1)), 1)
self.graph.remove_context(self.get_context(c1))
self.assert_(self.c1 not in self.graph.contexts())
def testRemoveAny(self):
Any = None
self.addStuffInMultipleContexts()
self.graph.remove((Any, Any, Any))
self.assertEquals(len(self.graph), 0)
def testTriples(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.assertEquals
triples = self.graph.triples
graph = self.graph
c1graph = Graph(self.graph.store, c1)
c1triples = c1graph.triples
Any = None
self.addStuff()
# 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.get_context(c1)]:
# unbound subjects
asserte(set(c.subjects(likes, pizza)), set((michel, tarek)))
asserte(set(c.subjects(hates, pizza)), set((bob,)))
asserte(set(c.subjects(likes, cheese)), set([tarek, bob, michel]))
asserte(set(c.subjects(hates, cheese)), set())
# unbound objects
asserte(set(c.objects(michel, likes)), set([cheese, pizza]))
asserte(set(c.objects(tarek, likes)), set([cheese, pizza]))
asserte(set(c.objects(bob, hates)), set([michel, pizza]))
asserte(set(c.objects(bob, likes)), set([cheese]))
# unbound predicates
asserte(set(c.predicates(michel, cheese)), set([likes]))
asserte(set(c.predicates(tarek, cheese)), set([likes]))
asserte(set(c.predicates(bob, pizza)), set([hates]))
asserte(set(c.predicates(bob, michel)), set([hates]))
asserte(set(c.subject_objects(hates)), set([(bob, pizza), (bob, michel)]))
asserte(set(c.subject_objects(likes)), set([(tarek, cheese), (michel, cheese), (michel, pizza), (bob, cheese), (tarek, pizza)]))
asserte(set(c.predicate_objects(michel)), set([(likes, cheese), (likes, pizza)]))
asserte(set(c.predicate_objects(bob)), set([(likes, cheese), (hates, pizza), (hates, michel)]))
asserte(set(c.predicate_objects(tarek)), set([(likes, cheese), (likes, pizza)]))
asserte(set(c.subject_predicates(pizza)), set([(bob, hates), (tarek, likes), (michel, likes)]))
asserte(set(c.subject_predicates(cheese)), set([(bob, likes), (tarek, likes), (michel, likes)]))
asserte(set(c.subject_predicates(michel)), set([(bob, hates)]))
asserte(set(c), set([(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.removeStuff()
asserte(len(list(c1triples((Any, Any, Any)))), 0)
asserte(len(list(triples((Any, Any, Any)))), 0)
if __name__ == '__main__':
unittest.main()
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