mirror of
https://github.com/semantica-agi/semantica.git
synced 2026-08-29 04:26:20 +00:00
Derek TapleyandCursor
f0aa581318
* feat(integrations): add LangChain integration — retriever, vectorstore, tools Co-authored-by: Cursor <cursoragent@cursor.com> * fix(langchain): address Qodo review on HybridSearch hits and tools Read nested HybridSearch metadata so retriever/vectorstore Documents are not empty, make the agent tools real BaseTool subclasses, and stop slicing tool JSON into invalid payloads. Co-authored-by: Cursor <cursoragent@cursor.com> --------- Co-authored-by: Cursor <cursoragent@cursor.com>
93 lines
2.7 KiB
Python
93 lines
2.7 KiB
Python
"""
|
|
Graceful-degradation tests for the LangChain integration.
|
|
|
|
Runs the adapters in a fresh subprocess with langchain-core hidden, so the
|
|
object-base path is proven even when this env has langchain-core installed.
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
from types import SimpleNamespace
|
|
|
|
import pytest
|
|
|
|
from integrations.langchain import (
|
|
LANGCHAIN_AVAILABLE,
|
|
SemanticaDecisionTool,
|
|
SemanticaKGTool,
|
|
)
|
|
|
|
REPO_ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(__file__))))
|
|
|
|
_SCRIPT = r"""
|
|
import sys
|
|
from types import SimpleNamespace
|
|
|
|
class _BlockLangchain:
|
|
def find_spec(self, fullname, path=None, target=None):
|
|
if fullname == "langchain_core" or fullname.startswith("langchain_core."):
|
|
raise ImportError("langchain_core blocked for degradation test")
|
|
return None
|
|
|
|
sys.meta_path.insert(0, _BlockLangchain())
|
|
for name in list(sys.modules):
|
|
if name == "langchain_core" or name.startswith("langchain_core."):
|
|
del sys.modules[name]
|
|
|
|
from integrations.langchain.retriever import LANGCHAIN_AVAILABLE as RET_AVAIL
|
|
from integrations.langchain.vectorstore import (
|
|
LANGCHAIN_AVAILABLE as VS_AVAIL,
|
|
SemanticaVectorStore,
|
|
)
|
|
from integrations.langchain.tools import (
|
|
LANGCHAIN_AVAILABLE as TOOL_AVAIL,
|
|
SemanticaKGTool,
|
|
SemanticaDecisionTool,
|
|
)
|
|
from integrations.langchain.retriever import SemanticaRetriever, _get_document
|
|
|
|
assert RET_AVAIL is False and VS_AVAIL is False and TOOL_AVAIL is False
|
|
|
|
retriever = SemanticaRetriever(graph=SimpleNamespace(), hops=2)
|
|
assert retriever.hops == 2
|
|
|
|
store = SemanticaVectorStore(hybrid=SimpleNamespace(), tags=["x"])
|
|
assert store.hybrid is not None
|
|
|
|
graph = SimpleNamespace(query=lambda q, limit=10: [{"q": q, "limit": limit}])
|
|
assert SemanticaKGTool(graph).build() is None
|
|
assert SemanticaDecisionTool(graph).build() is None
|
|
|
|
try:
|
|
_get_document(page_content="x")
|
|
raise SystemExit("expected RuntimeError from _get_document")
|
|
except RuntimeError as exc:
|
|
assert "langchain-core" in str(exc)
|
|
|
|
print("DEGRADATION_OK")
|
|
"""
|
|
|
|
|
|
def test_importable_and_functional_without_langchain():
|
|
result = subprocess.run(
|
|
[sys.executable, "-c", _SCRIPT],
|
|
cwd=REPO_ROOT,
|
|
capture_output=True,
|
|
text=True,
|
|
timeout=60,
|
|
)
|
|
assert result.returncode == 0, (
|
|
f"subprocess failed:\nSTDOUT:\n{result.stdout}\nSTDERR:\n{result.stderr}"
|
|
)
|
|
assert "DEGRADATION_OK" in result.stdout
|
|
|
|
|
|
@pytest.mark.skipif(LANGCHAIN_AVAILABLE, reason="langchain-core is installed")
|
|
def test_tools_build_returns_none_without_langchain():
|
|
graph = SimpleNamespace()
|
|
assert SemanticaKGTool(graph).build() is None
|
|
assert SemanticaDecisionTool(graph).build() is None
|