test: add end to end coverage

backend/tests/conftest.py

@@ -0,0 +1,40 @@
+import os
+from pathlib import Path
+
+import pytest
+from sqlalchemy.orm import sessionmaker
+
+from wisegrade.config import get_settings
+from wisegrade.db import Base, engine_for
+from wisegrade.seed import seed_initial
+from wisegrade import models  # noqa: F401
+
+
+@pytest.fixture
+def environment(tmp_path, monkeypatch):
+    inbox = tmp_path / "inbox"
+    inbox.mkdir()
+    monkeypatch.setenv("INBOX_PATH", str(inbox))
+    monkeypatch.setenv("PROCESSED_PATH", str(tmp_path / "processed"))
+    monkeypatch.setenv("EXPORTS_PATH", str(tmp_path / "exports"))
+    monkeypatch.setenv("WISEGRADE_SECRET_KEY", "test-only-secret-key-of-at-least-32-characters")
+    get_settings.cache_clear()
+    yield tmp_path
+    get_settings.cache_clear()
+
+
+@pytest.fixture
+def session_factory(environment):
+    engine = engine_for(f"sqlite:///{environment / 'test.db'}")
+    Base.metadata.create_all(engine)
+    factory = sessionmaker(bind=engine, expire_on_commit=False)
+    with factory() as db:
+        seed_initial(db)
+    yield factory
+    engine.dispose()
+
+
+@pytest.fixture
+def db(session_factory):
+    with session_factory() as session:
+        yield session