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import pytest
from rdflib import RDF, Dataset, Graph, Literal, Namespace, URIRef
from rdflib.namespace import DCTERMS, SKOS
"""
Testing scenarios:
1. no base set
2. base set at graph creation
3. base set at serialization
4. base set at both graph creation & serialization, serialization overrides
5. multiple serialization side effect checking
6. checking results for RDF/XML
7. checking results for N3
8. checking results for TriX
9. checking results for TriG
"""
# variables
base_one = Namespace("http://one.org/")
base_two = Namespace("http://two.org/")
title = Literal("Title", lang="en")
description = Literal("Test Description", lang="en")
creator = URIRef("https://creator.com")
cs = URIRef("")
@pytest.fixture
def get_graph(request):
# starting graph
g = Graph()
g.add((cs, RDF.type, SKOS.ConceptScheme))
g.add((cs, DCTERMS.creator, creator))
g.add((cs, DCTERMS.source, URIRef("nick")))
g.bind("dct", DCTERMS)
g.bind("skos", SKOS)
yield g
# 1. no base set for graph, no base set for serialization
def test_scenarios_1(get_graph):
g = get_graph
g1 = Graph()
g1 += g
# @base should not be in output
assert "@base" not in g.serialize(format="turtle")
# 2. base one set for graph, no base set for serialization
def test_scenarios_2(get_graph):
g = get_graph
g2 = Graph(base=base_one)
g2 += g
# @base should be in output, from Graph (one)
assert "@base <http://one.org/> ." in g2.serialize(format="turtle")
# 3. no base set for graph, base two set for serialization
def test_scenarios_3(get_graph):
g = get_graph
g3 = Graph()
g3 += g
# @base should be in output, from serialization (two)
assert "@base <http://two.org/> ." in g3.serialize(format="turtle", base=base_two)
# 4. base one set for graph, base two set for serialization, Graph one overrides
def test_scenarios_4(get_graph):
g = get_graph
g4 = Graph(base=base_one)
g4 += g
# @base should be in output, from graph (one)
assert "@base <http://two.org/> ." in g4.serialize(format="turtle", base=base_two)
# just checking that the serialization setting (two) hasn't snuck through
assert "@base <http://one.org/> ." not in g4.serialize(
format="turtle", base=base_two
)
# 5. multiple serialization side effect checking
def test_scenarios_5(get_graph):
g = get_graph
g5 = Graph()
g5 += g
# @base should be in output, from serialization (two)
assert "@base <http://two.org/> ." in g5.serialize(format="turtle", base=base_two)
# checking for side affects - no base now set for this serialization
# @base should not be in output
assert "@base" not in g5.serialize(format="turtle")
# 6. checking results for RDF/XML
def test_scenarios_6(get_graph):
g = get_graph
g6 = Graph()
g6 += g
g6.bind("dct", DCTERMS)
g6.bind("skos", SKOS)
assert "@xml:base" not in g6.serialize(format="xml")
assert 'xml:base="http://one.org/"' in g6.serialize(format="xml", base=base_one)
g6.base = base_two
assert 'xml:base="http://two.org/"' in g6.serialize(format="xml")
assert 'xml:base="http://one.org/"' in g6.serialize(format="xml", base=base_one)
# 7. checking results for N3
def test_scenarios_7(get_graph):
g = get_graph
g7 = Graph()
g7 += g
g7.bind("dct", DCTERMS)
g7.bind("skos", SKOS)
assert "@xml:base" not in g7.serialize(format="xml")
assert "@base <http://one.org/> ." in g7.serialize(format="n3", base=base_one)
g7.base = base_two
assert "@base <http://two.org/> ." in g7.serialize(format="n3")
assert "@base <http://one.org/> ." in g7.serialize(format="n3", base=base_one)
# 8. checking results for TriX
# TriX can specify a base per graph but setting a base for the whole
def test_scenarios_8(get_graph):
g = get_graph
base_three = Namespace("http://three.org/")
ds1 = Dataset()
ds1.bind("dct", DCTERMS)
ds1.bind("skos", SKOS)
g8 = ds1.graph(URIRef("http://g8.com/"), base=base_one)
g9 = ds1.graph(URIRef("http://g9.com/"))
g8 += g
g9 += g
g9.base = base_two
ds1.base = base_three
trix = ds1.serialize(format="trix", base=Namespace("http://two.org/"))
assert '<graph xml:base="http://one.org/">' in trix
assert '<graph xml:base="http://two.org/">' in trix
assert '<TriX xml:base="http://two.org/"' in trix
# 9. checking results for TriG
def test_scenarios_9(get_graph):
g = get_graph
base_three = Namespace("http://three.org/")
ds1 = Dataset()
ds1.bind("dct", DCTERMS)
ds1.bind("skos", SKOS)
g8 = ds1.graph(URIRef("http://g8.com/"), base=base_one)
g9 = ds1.graph(URIRef("http://g9.com/"))
g8 += g
g9 += g
g9.base = base_two
ds1.base = base_three
trig = ds1.serialize(format="trig", base=Namespace("http://two.org/"))
assert "@base <http://one.org/> ." not in trig
assert "@base <http://three.org/> ." not in trig
assert "@base <http://two.org/> ." in trig
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