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from __future__ import with_statement
import json
import rdflib
from rdflib import ConjunctiveGraph
from rdflib.compare import isomorphic
from rdflib_jsonld._compat import IS_PY3
from rdflib_jsonld.parser import to_rdf
from rdflib_jsonld.serializer import from_rdf
from rdflib_jsonld.keys import CONTEXT, GRAPH
# monkey-patch NTriplesParser to keep source bnode id:s ..
from rdflib.plugins.parsers.ntriples import r_nodeid, bNode
# NTriplesParser was renamed between 5.0.0 and 6.0.0.
if rdflib.__version__ < "6":
from rdflib.plugins.parsers.ntriples import NTriplesParser
else:
from rdflib.plugins.parsers.ntriples import W3CNTriplesParser as NTriplesParser
# NTriplesParser.nodeid changed its function signature between 5.0.0 and 6.0.0.
if rdflib.__version__ < "6":
def _preserving_nodeid(self):
if not self.peek("_"):
return False
return bNode(self.eat(r_nodeid).group(1))
else:
def _preserving_nodeid(self, bnode_context=None):
if not self.peek("_"):
return False
return bNode(self.eat(r_nodeid).group(1))
NTriplesParser.nodeid = _preserving_nodeid
# .. and accept bnodes everywhere
_uriref = NTriplesParser.uriref
def _uriref_or_nodeid(self):
return _uriref(self) or self.nodeid()
NTriplesParser.uriref = _uriref_or_nodeid
TC_BASE = "http://json-ld.org/test-suite/tests/"
def do_test_json(cat, num, inputpath, expectedpath, context, options):
base = TC_BASE + inputpath
input_obj = _load_json(inputpath)
input_graph = ConjunctiveGraph()
to_rdf(
input_obj,
input_graph,
base=base,
context_data=context,
produce_generalized_rdf=True,
)
expected_json = _load_json(expectedpath)
use_native_types = True # CONTEXT in input_obj
result_json = from_rdf(
input_graph,
context,
base=TC_BASE + inputpath,
use_native_types=options.get("useNativeTypes", use_native_types),
use_rdf_type=options.get("useRdfType", False),
)
def _prune_json(data):
if CONTEXT in data:
data.pop(CONTEXT)
if GRAPH in data:
data = data[GRAPH]
# def _remove_empty_sets(obj):
return data
expected_json = _prune_json(expected_json)
result_json = _prune_json(result_json)
_compare_json(expected_json, result_json)
def do_test_parser(cat, num, inputpath, expectedpath, context, options):
input_obj = _load_json(inputpath)
expected_graph = _load_nquads(expectedpath)
base = TC_BASE + inputpath
result_graph = ConjunctiveGraph()
to_rdf(
input_obj,
result_graph,
base=base,
context_data=context,
produce_generalized_rdf=options.get("produceGeneralizedRdf", False),
)
assert isomorphic(result_graph, expected_graph), "Expected:\n%s\nGot:\n%s" % (
expected_graph.serialize(format="turtle"),
result_graph.serialize(format="turtle"),
)
def do_test_serializer(cat, num, inputpath, expectedpath, context, options):
input_graph = _load_nquads(inputpath)
expected_json = _load_json(expectedpath)
result_json = from_rdf(
input_graph,
context,
base=TC_BASE + inputpath,
use_native_types=options.get("useNativeTypes", False),
use_rdf_type=options.get("useRdfType", False),
)
_compare_json(expected_json, result_json)
def _load_nquads(source):
graph = ConjunctiveGraph()
with open(source) as f:
data = f.read() if IS_PY3 else f.read().decode("utf-8")
graph.parse(data=data, format="nquads")
return graph
def _load_json(source):
with open(source) as f:
return json.load(f)
def _to_ordered(obj):
if isinstance(obj, list):
# NOTE: use type in key to handle mixed
# lists of e.g. bool, int, float.
return sorted(
(_to_ordered(lv) for lv in obj),
key=lambda x: (_ord_key(x), type(x).__name__),
)
if not isinstance(obj, dict):
return obj
return sorted((k, _to_ordered(v)) for k, v in obj.items())
def _ord_key(x):
if isinstance(x, dict) and "@id" in x:
return x["@id"]
else:
return x
def _dump_json(obj):
return json.dumps(
obj, indent=4, separators=(",", ": "), sort_keys=True, check_circular=True
)
def _compare_json(expected, result):
expected = json.loads(_dump_json(expected))
result = json.loads(_dump_json(result))
assert _to_ordered(expected) == _to_ordered(
result
), "Expected JSON:\n%s\nGot:\n%s" % (_dump_json(expected), _dump_json(result))
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