Initial SFERA platform baseline

packages/projection-engine/tests/test_projection.py

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+from pathlib import Path
+
+from projection_engine import InMemoryProjection, Neo4jProjection
+from semantic_kernel import index_project
+from sir import SirDelta
+
+
+def test_projection_queries(tmp_path: Path):
+    module = tmp_path / "demo_module.bsl"
+    module.write_text(
+        """
+Процедура Проведение()
+    ПроверитьОстатки();
+    Движения.ОстаткиТоваров.Записать();
+КонецПроцедуры
+
+Процедура ПроверитьОстатки()
+    Запрос = Новый Запрос;
+    Запрос.Текст =
+    "ВЫБРАТЬ
+        Остатки.Номенклатура
+     ИЗ
+        РегистрНакопления.ОстаткиТоваров КАК Остатки";
+КонецПроцедуры
+""",
+        encoding="utf-8",
+    )
+    graph = InMemoryProjection()
+    graph.project_snapshot(index_project(tmp_path, project_id="demo"))
+
+    assert [node.name for node in graph.find_callees("Проведение")] == ["ПроверитьОстатки"]
+    assert [node.name for node in graph.find_callers("ПроверитьОстатки")] == ["Проведение"]
+    assert [node.name for node in graph.find_writes("Проведение")] == ["ОстаткиТоваров"]
+    assert [node.qualified_name for node in graph.find_query_tables("ПроверитьОстатки")] == [
+        "РегистрНакопления.ОстаткиТоваров"
+    ]
+
+
+class FakeAsyncResult:
+    async def single(self):
+        return {"count": 0}
+
+
+class FakeSession:
+    def __init__(self) -> None:
+        self.runs: list[tuple[str, dict]] = []
+
+    async def __aenter__(self):
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        return None
+
+    async def run(self, query: str, **parameters):
+        self.runs.append((query, parameters))
+        return FakeAsyncResult()
+
+
+class FakeDriver:
+    def __init__(self) -> None:
+        self.session_instance = FakeSession()
+
+    def session(self):
+        return self.session_instance
+
+
+async def test_neo4j_projection_applies_delta(tmp_path: Path):
+    module = tmp_path / "demo_module.bsl"
+    module.write_text("Процедура Проведение()\nКонецПроцедуры\n", encoding="utf-8")
+    previous = index_project(tmp_path, project_id="demo-delta")
+
+    module.write_text(
+        """
+Процедура Проведение()
+    Движения.ОстаткиТоваров.Записать();
+КонецПроцедуры
+""",
+        encoding="utf-8",
+    )
+    current = index_project(tmp_path, project_id="demo-delta")
+    delta = SirDelta(
+        delta_id="delta.test",
+        snapshot_from=previous.snapshot_id,
+        snapshot_to=current.snapshot_id,
+        added_nodes=[node for node in current.nodes if node.lineage_id not in {old.lineage_id for old in previous.nodes}],
+        updated_nodes=[],
+        removed_nodes=[],
+        added_edges=[edge for edge in current.edges if edge.edge_id not in {old.edge_id for old in previous.edges}],
+        removed_edges=[],
+    )
+
+    driver = FakeDriver()
+    await Neo4jProjection(driver).apply_delta(delta, project_id="demo-delta")
+
+    parameter_sets = [parameters for _query, parameters in driver.session_instance.runs]
+    assert any(parameters.get("project_id") == "demo-delta" for parameters in parameter_sets)
+    assert any(parameters.get("name") == "ОстаткиТоваров" for parameters in parameter_sets)
+    assert any(parameters.get("kind") == "WRITES" for parameters in parameter_sets)