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from __future__ import annotations
import itertools
import logging
from typing import Iterable, Type, Union
import pytest
from _pytest.mark.structures import ParameterSet
from rdflib.graph import DATASET_DEFAULT_GRAPH_ID, ConjunctiveGraph, Dataset
from rdflib.term import BNode, URIRef
from test.data import TEST_DATA_DIR
def make_load_default_and_named() -> Iterable[ParameterSet]:
for container_type, file_extension in itertools.product(
(Dataset, ConjunctiveGraph), ("trig", "nq", "jsonld")
):
yield pytest.param(
container_type,
file_extension,
id=f"{container_type.__name__}-{file_extension}",
)
EXTENSION_FORMATS = {
"trig": "trig",
"nq": "nquads",
"jsonld": "json-ld",
"nt": "ntriples",
"ttl": "turtle",
"hext": "hext",
"n3": "n3",
}
@pytest.mark.parametrize(
["container_type", "file_extension"], make_load_default_and_named()
)
def test_load_default_and_named(
container_type: Union[Type[Dataset], Type[ConjunctiveGraph]], file_extension: str
) -> None:
logging.debug("container_type = %s", container_type)
container = container_type()
if container_type is Dataset:
# An empty dataset has 1 default graph and no named graphs, so 1 graph in
# total.
assert 1 == sum(1 for _ in container.contexts())
assert DATASET_DEFAULT_GRAPH_ID == next(
(context.identifier for context in container.contexts()), None
)
assert container.default_context == next(container.contexts(), None)
else:
assert isinstance(container.default_context.identifier, BNode)
# Load an RDF document with triples in three graphs into the container.
format = EXTENSION_FORMATS[file_extension]
source = TEST_DATA_DIR / "variants" / f"more_quads.{file_extension}"
container.parse(source=source, format=format)
context_identifiers = set(context.identifier for context in container.contexts())
logging.info("context_identifiers = %s", context_identifiers)
logging.info(
"container.default_context.triples(...) = %s",
set(container.default_context.triples((None, None, None))),
)
all_contexts = set(container.contexts())
logging.info(
"all_contexts = %s", set(context.identifier for context in all_contexts)
)
non_default_contexts = set(container.contexts()) - {container.default_context}
# There should now be two graphs in the container that are not the default graph.
logging.info(
"non_default_graphs = %s",
set(context.identifier for context in non_default_contexts),
)
assert 2 == len(non_default_contexts)
# The identifiers of the the non-default graphs should be the ones from the document.
assert {
URIRef("http://example.org/g2"),
URIRef("http://example.org/g3"),
} == set(context.identifier for context in non_default_contexts)
# The default graph should have 4 triples.
assert 4 == len(container.default_context)
def make_load_default_only_cases() -> Iterable[ParameterSet]:
for container_type, file_extension in itertools.product(
(Dataset, ConjunctiveGraph), ("trig", "ttl", "nq", "nt", "jsonld", "hext", "n3")
):
yield pytest.param(
container_type,
file_extension,
id=f"{container_type.__name__}-{file_extension}",
)
@pytest.mark.parametrize(
["container_type", "file_extension"], make_load_default_only_cases()
)
def test_load_default_only(
container_type: Union[Type[Dataset], Type[ConjunctiveGraph]], file_extension: str
) -> None:
logging.debug("container_type = %s", container_type)
container = container_type()
if container_type is Dataset:
# An empty dataset has 1 default graph and no named graphs, so 1 graph in
# total.
assert 1 == sum(1 for _ in container.contexts())
assert DATASET_DEFAULT_GRAPH_ID == next(
(context.identifier for context in container.contexts()), None
)
assert container.default_context == next(container.contexts(), None)
else:
assert isinstance(container.default_context.identifier, BNode)
# Load an RDF document with only triples in the default graph into the container.
format = EXTENSION_FORMATS[file_extension]
source = TEST_DATA_DIR / "variants" / f"simple_triple.{file_extension}"
container.parse(source=source, format=format)
context_identifiers = set(context.identifier for context in container.contexts())
logging.info("context_identifiers = %s", context_identifiers)
logging.info(
"container.default_context.triples(...) = %s",
set(container.default_context.triples((None, None, None))),
)
all_contexts = set(container.contexts())
logging.info(
"all_contexts = %s", set(context.identifier for context in all_contexts)
)
non_default_contexts = set(container.contexts()) - {container.default_context}
# There should now be no graphs in the container that are not the default graph.
logging.info(
"non_default_graphs = %s",
set(context.identifier for context in non_default_contexts),
)
assert 0 == len(non_default_contexts)
# The identifiers of the the non-default graphs should be an empty set.
assert set() == set(context.identifier for context in non_default_contexts)
# The default graph should have 3 triples.
assert 1 == len(container.default_context)
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