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import os
from rdflib import ConjunctiveGraph, Graph
from test.data import CHEESE, LIKES, MICHEL, PIZZA, TAREK, TEST_DATA_DIR
sportquadstrig = open(os.path.join(TEST_DATA_DIR, "sportquads.trig")).read()
def test_operators_with_conjunctivegraph_and_graph():
cg = ConjunctiveGraph()
cg.add((TAREK, LIKES, PIZZA))
cg.add((TAREK, LIKES, MICHEL))
g = Graph()
g.add([TAREK, LIKES, PIZZA])
g.add([TAREK, LIKES, CHEESE])
assert len(cg + g) == 3 # adds CHEESE as liking
assert len(cg - g) == 1 # removes PIZZA
assert len(cg * g) == 1 # only PIZZA
assert len(cg ^ g) == 2 # removes PIZZA, adds CHEESE
def test_reversed_operators_with_conjunctivegraph_and_graph():
cg = ConjunctiveGraph()
cg.add((TAREK, LIKES, PIZZA))
cg.add((TAREK, LIKES, MICHEL))
g = Graph()
g.add([TAREK, LIKES, PIZZA])
g.add([TAREK, LIKES, CHEESE])
assert len(g + cg) == 3 # adds CHEESE as liking
assert len(g - cg) == 1 # removes PIZZA
assert len(g * cg) == 1 # only PIZZA
assert len(g ^ cg) == 2 # removes PIZZA, adds CHEESE
def test_reversed_operators_with_conjunctivegraph_with_contexts_and_graph():
cg = ConjunctiveGraph()
cg.add((TAREK, LIKES, PIZZA))
cg.add((TAREK, LIKES, MICHEL))
cg.parse(data=sportquadstrig, format="trig")
g = Graph()
g.add([TAREK, LIKES, PIZZA])
g.add([TAREK, LIKES, CHEESE])
assert len(g + cg) == 10 # adds CHEESE as liking plus sevenquads
assert len(list((g + cg).triples((None, None, None)))) == 10
assert len(g - cg) == 1 # removes PIZZA
assert len(g * cg) == 1 # only PIZZA
assert len(g ^ cg) == 9 # removes PIZZA, adds CHEESE and sevenquads
def test_operators_with_two_conjunctivegraphs():
cg1 = ConjunctiveGraph()
cg1.add([TAREK, LIKES, PIZZA])
cg1.add([TAREK, LIKES, MICHEL])
cg2 = ConjunctiveGraph()
cg2.add([TAREK, LIKES, PIZZA])
cg2.add([TAREK, LIKES, CHEESE])
assert len(cg1 + cg2) == 3 # adds CHEESE as liking
assert len(cg1 - cg2) == 1 # removes PIZZA from cg1
assert len(cg1 * cg2) == 1 # only PIZZA
assert len(cg1 + cg2) == 3 # adds CHEESE as liking
assert len(cg1 ^ cg2) == 2 # removes PIZZA, adds CHEESE
def test_operators_with_two_conjunctivegraphs_one_with_contexts():
cg1 = ConjunctiveGraph()
cg1.add([TAREK, LIKES, PIZZA])
cg1.add([TAREK, LIKES, MICHEL])
cg2 = ConjunctiveGraph()
cg2.add([TAREK, LIKES, PIZZA])
cg2.add([TAREK, LIKES, CHEESE])
cg2.parse(data=sportquadstrig, format="trig")
assert len(cg1 + cg2) == 10 # adds CHEESE as liking and all seven quads
assert len(cg1 - cg2) == 1 # removes PIZZA
assert len(cg1 * cg2) == 1 # only PIZZA
assert len(cg1 ^ cg2) == 9 # removes PIZZA
def test_operators_returning_correct_type():
g1 = ConjunctiveGraph()
g2 = ConjunctiveGraph()
assert type(g1 + g2) is ConjunctiveGraph
assert type(g1 - g2) is ConjunctiveGraph
assert type(g1 * g2) is ConjunctiveGraph
assert type(g1 ^ g2) is ConjunctiveGraph
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