feat: Task 20 — SQLAlchemy-Persistenz

tests/conftest.py

@@ -0,0 +1,44 @@
+"""Pytest-Konfiguration: Redis-Mock und Datenbank-Reset."""
+
+from __future__ import annotations
+
+import sys
+import unittest.mock as mock
+
+import fakeredis
+import pytest
+from src.database import Base, _engine
+
+
+# --- Fake redis module that provides real-like exceptions ---
+
+import redis as _real_redis
+
+class _FakeRedis:
+    """Wraps fakeredis with the correct redis.exceptions hierarchy."""
+    @staticmethod
+    def exceptions():
+        return _real_redis.exceptions
+
+    def __init__(self, *args, **kwargs):
+        self._conn = fakeredis.FakeStrictRedis(decode_responses=True)
+
+    def __getattr__(self, name):
+        return getattr(self._conn, name)
+
+    @property
+    def exceptions(self):
+        return _real_redis.exceptions
+
+
+# Install BEFORE any app code runs
+sys.modules["redis"] = mock.MagicMock()
+sys.modules["redis"].Redis = _FakeRedis
+sys.modules["redis"].exceptions = _real_redis.exceptions
+
+
+@pytest.fixture(autouse=True)
+def reset_db() -> None:
+    """Setzt die Datenbank vor jedem Test zurueck."""
+    Base.metadata.drop_all(bind=_engine)
+    Base.metadata.create_all(bind=_engine)