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pytest conftest Fixture Dependency Graph & mock.patch Leak Detector
Statically analyze a pytest conftest.py chain: render the fixture dependency graph across all five scopes (function/class/module/package/session), detect deeper-conftest overrides, ScopeMismatch edges, and cross-test state pollution — mock.patch().start() without .stop(), monkeypatch leaking from broad-scope fixtures, and with mock.patch held open across yield.
html· HTML resultOpen tool
Quick start
Call this tool from your code in three languages.
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/pytest-conftest-fixture-dependency-graph-and-mock-patch-leak-detector' \
-H 'Content-Type: application/json' \
-d '{"filename":"pythonFile.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/pytest-conftest-fixture-dependency-graph-and-mock-patch-leak-detector' \
-F 'sourceInput=# --- file: conftest.py ---
import pytest
from unittest import mock
@pytest.fixture(scope="session")
def db_engine():
engine = {"url": "sqlite://"}
yield engine
engine.clear()
@pytest.fixture(scope="session")
def patched_auth():
patcher = mock.patch("auth.verify_token", return_value=True)
patcher.start()
return None
@pytest.fixture
def api_client(db_engine, patched_auth):
return {"db": db_engine}
# --- file: tests/unit/conftest.py ---
import pytest
@pytest.fixture(scope="module")
def fake_auth(monkeypatch):
monkeypatch.setattr("auth.verify_token", lambda t: True)
return True
@pytest.fixture
def api_client(fake_auth):
return {"override": True}' \
-F 'pythonFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'includeBuiltinGraph=true'