Offer ontology graphs as context graph

CHANGELOG.md

@@ -7,6 +7,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 ## [Unreleased]
 
+### Fixed
+
+- Ontology graphs can now be selected as the context graph
+
 ### Changed
 
 - updated dependencies and template

cmem_plugin_validation/validate_graph/task.py

@@ -31,6 +31,12 @@
 according to the node shapes in a shape catalog graph.
 """
 
+CONTEXT_GRAPH_CLASSES = [
+    "https://vocab.eccenca.com/di/Dataset",
+    "http://rdfs.org/ns/void#Dataset",
+    "https://vocab.eccenca.com/shui/QueryCatalog",
+    "http://www.w3.org/2002/07/owl#Ontology",
+]
 DEFAULT_SHAPE_GRAPH = "https://vocab.eccenca.com/shacl/"
 DEFAULT_RESULT_GRAPH = ""
 DEFAULT_CLEAR_RESULT_GRAPH = False
@@ -54,6 +60,7 @@
             label="Context Graph",
             description="This graph holds the resources you want to validate.",
             param_type=GraphParameterType(
+                classes=CONTEXT_GRAPH_CLASSES,
                 show_di_graphs=False,
                 show_graphs_without_class=True,
                 show_system_graphs=True,

tests/fixtures/ontology.ttl

@@ -0,0 +1,10 @@
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://docker.localhost/ontology-for-persons/>
+    a owl:Ontology ;
+    rdfs:label "Ontology for Persons" .
+
+<http://example.org/persons/Person>
+    a owl:Class ;
+    rdfs:label "Person" .

tests/test_validate_graph.py

@@ -13,13 +13,19 @@
 from cmem_client.repositories.graphs import GraphExportConfig, GraphsRepository
 from cmem_client.repositories.protocols.import_item import ImportConflictPolicy
 from cmem_plugin_base.dataintegration.entity import Entities
-from cmem_plugin_base.testing import TestExecutionContext
+from cmem_plugin_base.dataintegration.parameter.graph import GraphParameterType
+from cmem_plugin_base.testing import TestExecutionContext, TestPluginContext
 
-from cmem_plugin_validation.validate_graph.task import ValidateGraph
+from cmem_plugin_validation.validate_graph.task import CONTEXT_GRAPH_CLASSES, ValidateGraph
 from tests.fixtures import FIXTURE_DIR
 
 N_TRIPLES = GraphExportConfig(serialization=GraphsRepository.formats["n-triples"])
 
+needs_cmem = pytest.mark.skipif(
+    environ.get("CMEM_BASE_URI", "") == "",
+    reason="Needs eccenca Corporate Memory configuration",
+)
+
 
 def get_client() -> Client:
     """Get a fresh client
@@ -60,6 +66,8 @@ class TestSetup:
     shapes_graph = "http://docker.localhost/shapes-for-persons/"
     shapes_file = FIXTURE_DIR / "shapes.ttl"
     result_graph = "http://docker.localhost/results/"
+    ontology_graph = "http://docker.localhost/ontology-for-persons/"
+    ontology_file = FIXTURE_DIR / "ontology.ttl"
 
 
 @pytest.fixture
@@ -77,6 +85,18 @@ def test_setup() -> Generator[TestSetup, Any]:
     _delete_graphs(_.persons_graph, _.shapes_graph, _.result_graph)
 
 
+@pytest.fixture
+def ontology_graph() -> Generator[str, Any]:
+    """Provide a graph which is typed as an owl:Ontology"""
+    _ = TestSetup()
+    client = get_client()
+    client.graphs.import_item(
+        path=_.ontology_file, key=_.ontology_graph, on_conflict=ImportConflictPolicy.REPLACE
+    )
+    yield _.ontology_graph
+    _delete_graphs(_.ontology_graph)
+
+
 def test_fails(test_setup: TestSetup) -> None:
     """Test failing task execution"""
     _ = test_setup
@@ -165,3 +185,22 @@ def test_different_query(test_setup: TestSetup) -> None:
     assert task.execute(context=TestExecutionContext(), inputs=[]) is None, (
         "Should no violations, since no person was validated"
     )
+
+
+@needs_cmem
+def test_ontology_as_context_graph(ontology_graph: str) -> None:
+    """Test that an ontology graph is offered as a context graph"""
+    parameter_type = GraphParameterType(
+        classes=CONTEXT_GRAPH_CLASSES,
+        show_di_graphs=False,
+        show_graphs_without_class=True,
+        show_system_graphs=True,
+        allow_only_autocompleted_values=False,
+    )
+    values = {
+        _.value
+        for _ in parameter_type.autocomplete(
+            query_terms=[], depend_on_parameter_values=[], context=TestPluginContext()
+        )
+    }
+    assert ontology_graph in values