Squashed 'receiptwitness/' content from commit e8d374a

git-subtree-dir: receiptwitness
git-subtree-split: e8d374a89ed8978f429598e02d31b1c5963efe22

tests/test_pipeline/conftest.py

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+"""Shared test fixtures for pipeline tests."""
+
+import pytest
+from cartsnitch_common.models.base import Base
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+
+@pytest.fixture
+def engine():
+    """In-memory SQLite engine for unit tests."""
+    eng = create_engine("sqlite:///:memory:")
+    Base.metadata.create_all(eng)
+    yield eng
+    eng.dispose()
+
+
+@pytest.fixture
+def session(engine):
+    """SQLAlchemy session bound to in-memory SQLite."""
+    factory = sessionmaker(bind=engine)
+    with factory() as sess:
+        yield sess