mirror of
https://github.com/semantica-agi/semantica.git
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Sameer6305
c4e971c91c
Implements #322: ConstructTemplate/ParameterDescriptor/ConstructTemplateRegistry with injection-safe {{param}} rendering, Blazegraph CONSTRUCT-aware execute_sparql extension, execute_construct_template (render->execute->parse->persist), and a construct_template pipeline step. RDF4J/Jena support deferred to a follow-up issue. Closes #322
98 lines
3.4 KiB
Python
98 lines
3.4 KiB
Python
"""
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Tests for semantica.triplet_store.query_engine, focused on the
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QueryResult.triples field added for CONSTRUCT query support.
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"""
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import os
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import sys
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import unittest
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from unittest.mock import MagicMock
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PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", ".."))
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if PROJECT_ROOT not in sys.path:
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sys.path.insert(0, PROJECT_ROOT)
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from semantica.triplet_store.query_engine import QueryEngine, QueryResult
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class TestQueryResultTriplesField(unittest.TestCase):
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def test_query_result_triples_defaults_to_empty_list(self):
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result = QueryResult(bindings=[], variables=[])
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self.assertEqual(result.triples, [])
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def test_query_result_triples_field_is_independent_per_instance(self):
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# default_factory=list must produce a fresh list per instance, not a
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# shared mutable default.
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r1 = QueryResult(bindings=[], variables=[])
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r2 = QueryResult(bindings=[], variables=[])
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r1.triples.append(("s", "p", "o"))
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self.assertEqual(r1.triples, [("s", "p", "o")])
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self.assertEqual(r2.triples, [])
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def test_query_result_accepts_explicit_triples(self):
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triples = [("http://ex.org/s1", "http://ex.org/p1", "v1")]
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result = QueryResult(bindings=[], variables=[], triples=triples)
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self.assertEqual(result.triples, triples)
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class FakeConstructBackend:
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"""Fake store_backend whose execute_sparql returns a CONSTRUCT-shaped result."""
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supports_named_graphs = True
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def execute_sparql(self, query, **options):
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return {
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"success": True,
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"bindings": [],
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"variables": [],
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"triples": [
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("http://ex.org/s1", "http://ex.org/p1", "v1"),
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("http://ex.org/s2", "http://ex.org/p2", "v2"),
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],
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"metadata": {"query": query, "result_format": "construct"},
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}
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class FakeBindingsBackend:
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"""Fake store_backend whose execute_sparql returns a plain bindings result
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with no "triples" key at all, matching pre-CONSTRUCT-extension backends."""
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supports_named_graphs = True
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def execute_sparql(self, query, **options):
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return {
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"success": True,
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"bindings": [{"s": {"value": "http://ex.org/s1"}}],
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"variables": ["s"],
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"metadata": {"query": query},
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}
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class TestExecuteQueryPopulatesTriples(unittest.TestCase):
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def test_execute_query_populates_triples_from_construct_backend(self):
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engine = QueryEngine(enable_caching=False, enable_optimization=False)
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result = engine.execute_query(
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"CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o }", FakeConstructBackend()
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)
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self.assertEqual(
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result.triples,
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[
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("http://ex.org/s1", "http://ex.org/p1", "v1"),
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("http://ex.org/s2", "http://ex.org/p2", "v2"),
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],
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)
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def test_execute_query_defaults_triples_to_empty_list_when_backend_omits_key(self):
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engine = QueryEngine(enable_caching=False, enable_optimization=False)
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result = engine.execute_query(
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"SELECT ?s WHERE { ?s ?p ?o }", FakeBindingsBackend()
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)
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self.assertEqual(result.triples, [])
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# Non-CONSTRUCT behavior otherwise unaffected.
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self.assertEqual(result.bindings, [{"s": {"value": "http://ex.org/s1"}}])
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self.assertEqual(result.variables, ["s"])
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if __name__ == "__main__":
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unittest.main()
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