added trade-hub role and files

roles/trade_hub/files/trade-hub/backend/tests/conftest.py

@@ -0,0 +1,31 @@
+"""Test bootstrap.
+
+Runs the suite against a throwaway in-memory SQLite database and the tiny
+fixture catalog, so no PostgreSQL server is needed. Environment variables must
+be set before any app module is imported, because config reads them at import
+time.
+"""
+import os
+
+os.environ["DATA_DIR"] = os.path.join(os.path.dirname(__file__), "fixtures")
+os.environ["DATABASE_URL"] = "sqlite://"
+os.environ["AUTO_INIT_DB"] = "false"
+os.environ["COOKIE_SECURE"] = "false"
+
+import pytest  # noqa: E402
+
+from app import db  # noqa: E402
+from app.models import Base  # noqa: E402
+
+
+@pytest.fixture(autouse=True)
+def fresh_db():
+    """Give every test an empty schema and a clean login throttle."""
+    engine = db.get_engine()
+    Base.metadata.drop_all(bind=engine)
+    Base.metadata.create_all(bind=engine)
+
+    from app.auth import throttle
+
+    throttle.clear()
+    yield