Fix: strip PostgreSQL server_default from UUID + gen_random_bytes columns for SQLite tests

The sync engine fixture (engine) and async engine fixture (db_engine) now
iterate all Base.metadata tables and null server_default on any column
whose SQL text contains 'gen_random_uuid' or 'gen_random_bytes'. This
covers all UUIDPrimaryKeyMixin columns (Purchase, PurchaseItem, Store,
StoreLocation, Coupon, NormalizedProduct, PriceHistory,
ShrinkflationEvent, UserStoreAccount) as well as the
email_inbound_token gen_random_bytes expression in User.

Without this, SQLite raises 'type UUID is not supported' when the ORM
tries to bind Python UUID objects, and NOT NULL constraint failures when
server_default expressions reference non-existent PostgreSQL functions.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.mcp.json

@@ -1,11 +0,0 @@
-{
-  "mcpServers": {
-    "gitea": {
-      "type": "http",
-      "url": "https://git-mcp.farh.net/mcp",
-      "headers": {
-        "Authorization": "Bearer ${GITEA_TOKEN}"
-      }
-    }
-  }
-}

alembic/env.py

@@ -45,11 +45,7 @@ def run_migrations_online() -> None:
         poolclass=pool.NullPool,
     )
     with connectable.connect() as connection:
-        context.configure(
-            connection=connection,
-            target_metadata=target_metadata,
-            version_table_column_width=128,
-        )
+        context.configure(connection=connection, target_metadata=target_metadata, version_table_column_width=128)
         with context.begin_transaction():
             context.run_migrations()
         # Create any tables defined in models but not yet created by migrations.
@@ -60,7 +56,6 @@ def run_migrations_online() -> None:
             connection.commit()
         except Exception as exc:
             import logging
-
             logging.getLogger("alembic.env").warning(
                 "create_all failed (non-fatal, migrations should handle table creation): %s", exc
             )

alembic/versions/002_better_auth_tables.py

@@ -30,10 +30,7 @@ def upgrade() -> None:
     if inspector.has_table("users"):
         existing_user_cols = [c["name"] for c in inspector.get_columns("users")]
         if "email_verified" not in existing_user_cols:
-            op.add_column(
-                "users",
-                sa.Column("email_verified", sa.Boolean(), nullable=False, server_default="false"),
-            )
+            op.add_column("users", sa.Column("email_verified", sa.Boolean(), nullable=False, server_default="false"))
         if "image" not in existing_user_cols:
             op.add_column("users", sa.Column("image", sa.Text(), nullable=True))
 
@@ -47,18 +44,8 @@ def upgrade() -> None:
             sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
             sa.Column("ip_address", sa.Text(), nullable=True),
             sa.Column("user_agent", sa.Text(), nullable=True),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
             sa.PrimaryKeyConstraint("id"),
         )
         op.create_index("ix_sessions_token", "sessions", ["token"], unique=True)
@@ -79,18 +66,8 @@ def upgrade() -> None:
             sa.Column("scope", sa.Text(), nullable=True),
             sa.Column("id_token", sa.Text(), nullable=True),
             sa.Column("password", sa.Text(), nullable=True),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
             sa.PrimaryKeyConstraint("id"),
         )
         op.create_index("ix_accounts_user_id", "accounts", ["user_id"])
@@ -103,18 +80,8 @@ def upgrade() -> None:
             sa.Column("identifier", sa.Text(), nullable=False),
             sa.Column("value", sa.Text(), nullable=False),
             sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
             sa.PrimaryKeyConstraint("id"),
         )
 
@@ -129,10 +96,8 @@ def upgrade() -> None:
             user_id_str = str(user_id)
             conn.execute(
                 text(
-                    "INSERT INTO accounts "
-                    "(id, user_id, account_id, provider_id, password, created_at, updated_at) "
-                    "VALUES (gen_random_uuid()::text, :user_id, :account_id, "
-                    "'credential', :password, now(), now())"
+                    "INSERT INTO accounts (id, user_id, account_id, provider_id, password, created_at, updated_at) "
+                    "VALUES (gen_random_uuid()::text, :user_id, :account_id, 'credential', :password, now(), now())"
                 ),
                 {"user_id": user_id_str, "account_id": user_id_str, "password": hashed_password},
             )

alembic/versions/004_fix_user_id_text.py

@@ -40,12 +40,7 @@ def upgrade() -> None:
             return  # already TEXT — nothing to do
 
     # Step 1: Drop existing FK constraints (ignore if they don't exist)
-    op.execute(
-        text(
-            "ALTER TABLE user_store_accounts "
-            "DROP CONSTRAINT IF EXISTS user_store_accounts_user_id_fkey"
-        )
-    )
+    op.execute(text("ALTER TABLE user_store_accounts DROP CONSTRAINT IF EXISTS user_store_accounts_user_id_fkey"))
     op.execute(text("ALTER TABLE purchases DROP CONSTRAINT IF EXISTS purchases_user_id_fkey"))
 
     # Step 2: Alter users.id from uuid to text
@@ -94,12 +89,7 @@ def upgrade() -> None:
 
 def downgrade() -> None:
     # Drop FK constraints
-    op.execute(
-        text(
-            "ALTER TABLE user_store_accounts "
-            "DROP CONSTRAINT IF EXISTS user_store_accounts_user_id_fkey"
-        )
-    )
+    op.execute(text("ALTER TABLE user_store_accounts DROP CONSTRAINT IF EXISTS user_store_accounts_user_id_fkey"))
     op.execute(text("ALTER TABLE purchases DROP CONSTRAINT IF EXISTS purchases_user_id_fkey"))
 
     # Revert users.id from text to uuid

alembic/versions/005_add_email_inbound_token.py

@@ -20,7 +20,7 @@ depends_on = None
 def upgrade() -> None:
     conn = op.get_bind()
     inspector = sa.inspect(conn)
-    # Guard: on fresh DB, Base.metadata.create_all already has the column
+    # Guard: on a fresh DB Base.metadata.create_all creates users table with the column already present
     if not inspector.has_table("users"):
         return
     existing_cols = [c["name"] for c in inspector.get_columns("users")]

alembic/versions/006_email_inbound_token_server_default.py

@@ -6,7 +6,6 @@ Create Date: 2026-04-04
 """
 
 import sqlalchemy as sa
-
 from alembic import op
 
 revision = "006_email_inbound_token_server_default"
@@ -30,8 +29,7 @@ def upgrade() -> None:
         "users",
         "email_inbound_token",
         server_default=sa.text(
-            "replace(replace(trim(trailing '=' from "
-            "encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_')"
+            "replace(replace(trim(trailing '=' from encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_')"
         ),
     )
 

alembic/versions/007_bootstrap_users_table.py

@@ -27,8 +27,7 @@ def upgrade() -> None:
     if inspector.has_table("users"):
         return  # Table already exists (non-fresh DB or create_all already ran)
 
-    conn.execute(
-        text("""
+    conn.execute(text("""
         CREATE TABLE users (
             id TEXT PRIMARY KEY,
             email VARCHAR(255) NOT NULL UNIQUE,
@@ -37,20 +36,11 @@ def upgrade() -> None:
             email_verified BOOLEAN NOT NULL DEFAULT false,
             image TEXT,
             email_inbound_token VARCHAR(22) NOT NULL UNIQUE
-                DEFAULT (
-                    replace(
-                        replace(
-                            trim(trailing '=' from encode(gen_random_bytes(16), 'base64')),
-                            '+', '-'
-                        ),
-                        '/', '_'
-                    )
-                ),
+                DEFAULT replace(replace(trim(trailing '=' from encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_'),
             created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
             updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
         )
-    """)
-    )
+    """))
 
 
 def downgrade() -> None:

alembic/versions/008_create_domain_tables.py

@@ -29,18 +29,8 @@ def upgrade() -> None:
             sa.Column("slug", sa.String(20), nullable=False, unique=True),
             sa.Column("logo_url", sa.String(500), nullable=True),
             sa.Column("website_url", sa.String(500), nullable=True),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
         )
 
     # 2. store_locations
@@ -55,18 +45,8 @@ def upgrade() -> None:
             sa.Column("zip", sa.String(10), nullable=False),
             sa.Column("lat", sa.Float(), nullable=True),
             sa.Column("lng", sa.Float(), nullable=True),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
         )
 
     # 3. normalized_products
@@ -81,18 +61,8 @@ def upgrade() -> None:
             sa.Column("size", sa.String(50), nullable=True),
             sa.Column("size_unit", sa.String(10), nullable=True),
             sa.Column("upc_variants", sa.JSON(), nullable=True),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
         )
 
     # 4. purchases
@@ -102,9 +72,7 @@ def upgrade() -> None:
             sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
             sa.Column("user_id", sa.Text(), sa.ForeignKey("users.id"), nullable=False),
             sa.Column("store_id", sa.Uuid(), sa.ForeignKey("stores.id"), nullable=False),
-            sa.Column(
-                "store_location_id", sa.Uuid(), sa.ForeignKey("store_locations.id"), nullable=True
-            ),
+            sa.Column("store_location_id", sa.Uuid(), sa.ForeignKey("store_locations.id"), nullable=True),
             sa.Column("receipt_id", sa.String(200), nullable=False),
             sa.Column("purchase_date", sa.Date(), nullable=False),
             sa.Column("total", sa.Numeric(10, 2), nullable=False),
@@ -113,24 +81,9 @@ def upgrade() -> None:
             sa.Column("savings_total", sa.Numeric(10, 2), nullable=True),
             sa.Column("source_url", sa.String(500), nullable=True),
             sa.Column("raw_data", sa.JSON(), nullable=True),
-            sa.Column(
-                "ingested_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("ingested_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
             sa.UniqueConstraint("user_id", "store_id", "receipt_id", name="uq_purchase_receipt"),
             sa.Index("ix_purchases_user_store", "user_id", "store_id"),
         )
@@ -151,24 +104,9 @@ def upgrade() -> None:
             sa.Column("coupon_discount", sa.Numeric(10, 2), nullable=True),
             sa.Column("loyalty_discount", sa.Numeric(10, 2), nullable=True),
             sa.Column("category_raw", sa.String(100), nullable=True),
-            sa.Column(
-                "normalized_product_id",
-                sa.Uuid(),
-                sa.ForeignKey("normalized_products.id"),
-                nullable=True,
-            ),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("normalized_product_id", sa.Uuid(), sa.ForeignKey("normalized_products.id"), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
         )
 
     # 6. coupons
@@ -177,12 +115,7 @@ def upgrade() -> None:
             "coupons",
             sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
             sa.Column("store_id", sa.Uuid(), sa.ForeignKey("stores.id"), nullable=False),
-            sa.Column(
-                "normalized_product_id",
-                sa.Uuid(),
-                sa.ForeignKey("normalized_products.id"),
-                nullable=True,
-            ),
+            sa.Column("normalized_product_id", sa.Uuid(), sa.ForeignKey("normalized_products.id"), nullable=True),
             sa.Column("title", sa.String(300), nullable=False),
             sa.Column("description", sa.String(1000), nullable=True),
             sa.Column("discount_type", sa.String(20), nullable=False),
@@ -194,18 +127,8 @@ def upgrade() -> None:
             sa.Column("coupon_code", sa.String(100), nullable=True),
             sa.Column("source_url", sa.String(500), nullable=True),
             sa.Column("scraped_at", sa.DateTime(timezone=True), nullable=True),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
         )
 
     # 7. price_history
@@ -213,12 +136,7 @@ def upgrade() -> None:
         op.create_table(
             "price_history",
             sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
-            sa.Column(
-                "normalized_product_id",
-                sa.Uuid(),
-                sa.ForeignKey("normalized_products.id"),
-                nullable=False,
-            ),
+            sa.Column("normalized_product_id", sa.Uuid(), sa.ForeignKey("normalized_products.id"), nullable=False),
             sa.Column("store_id", sa.Uuid(), sa.ForeignKey("stores.id"), nullable=False),
             sa.Column("observed_date", sa.Date(), nullable=False),
             sa.Column("regular_price", sa.Numeric(10, 2), nullable=False),
@@ -226,27 +144,10 @@ def upgrade() -> None:
             sa.Column("loyalty_price", sa.Numeric(10, 2), nullable=True),
             sa.Column("coupon_price", sa.Numeric(10, 2), nullable=True),
             sa.Column("source", sa.String(20), nullable=False),
-            sa.Column(
-                "purchase_item_id", sa.Uuid(), sa.ForeignKey("purchase_items.id"), nullable=True
-            ),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Index(
-                "ix_price_history_product_store_date",
-                "normalized_product_id",
-                "store_id",
-                "observed_date",
-            ),
+            sa.Column("purchase_item_id", sa.Uuid(), sa.ForeignKey("purchase_items.id"), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Index("ix_price_history_product_store_date", "normalized_product_id", "store_id", "observed_date"),
         )
 
     # 8. shrinkflation_events
@@ -254,12 +155,7 @@ def upgrade() -> None:
         op.create_table(
             "shrinkflation_events",
             sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
-            sa.Column(
-                "normalized_product_id",
-                sa.Uuid(),
-                sa.ForeignKey("normalized_products.id"),
-                nullable=False,
-            ),
+            sa.Column("normalized_product_id", sa.Uuid(), sa.ForeignKey("normalized_products.id"), nullable=False),
             sa.Column("detected_date", sa.Date(), nullable=False),
             sa.Column("old_size", sa.String(50), nullable=False),
             sa.Column("new_size", sa.String(50), nullable=False),
@@ -269,18 +165,8 @@ def upgrade() -> None:
             sa.Column("price_at_new_size", sa.Numeric(10, 2), nullable=True),
             sa.Column("confidence", sa.Numeric(3, 2), server_default=text("1.00"), nullable=False),
             sa.Column("notes", sa.String(1000), nullable=True),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
         )
 
     # 9. user_store_accounts
@@ -294,18 +180,8 @@ def upgrade() -> None:
             sa.Column("session_expires_at", sa.DateTime(timezone=True), nullable=True),
             sa.Column("last_sync_at", sa.DateTime(timezone=True), nullable=True),
             sa.Column("status", sa.String(20), server_default=text("'active'"), nullable=False),
-            sa.Column(
-                "created_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
-            sa.Column(
-                "updated_at",
-                sa.DateTime(timezone=True),
-                server_default=sa.func.now(),
-                nullable=False,
-            ),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
             sa.UniqueConstraint("user_id", "store_id", name="uq_user_store_account"),
         )
 

alembic/versions/009_add_gin_index_upc_variants.py

@@ -6,7 +6,6 @@ Create Date: 2026-04-14
 """
 
 import sqlalchemy as sa
-
 from alembic import op
 
 revision = "009_add_gin_index_upc_variants"

src/cartsnitch_api/auth/dependencies.py

@@ -5,8 +5,7 @@ Sessions are verified by querying the shared sessions table directly.
 """
 
 from datetime import UTC, datetime
-
-from fastapi import Depends, Header, HTTPException, Request, status
+from fastapi import Cookie, Depends, Header, HTTPException, Request, status
 from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
 from sqlalchemy import text
 from sqlalchemy.ext.asyncio import AsyncSession

src/cartsnitch_api/auth/routes.py

@@ -6,10 +6,13 @@ endpoints that query our own user data from the shared database.
 """
 
 from fastapi import APIRouter, Depends, HTTPException, status
+from pydantic import BaseModel
+from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from cartsnitch_api.auth.dependencies import get_current_user
 from cartsnitch_api.database import get_db
+from cartsnitch_api.models import User
 from cartsnitch_api.schemas import (
     UpdateUserRequest,
     UserResponse,

src/cartsnitch_api/main.py

@@ -6,10 +6,10 @@ from fastapi import APIRouter, FastAPI
 
 from cartsnitch_api.auth.routes import router as auth_router
 from cartsnitch_api.cache import cache_client
-from cartsnitch_api.middleware.audit import add_audit_middleware
 from cartsnitch_api.middleware.cors import add_cors_middleware
 from cartsnitch_api.middleware.error_handler import add_error_handlers, add_error_monitor_middleware
 from cartsnitch_api.middleware.rate_limit import add_rate_limit_middleware
+from cartsnitch_api.middleware.audit import add_audit_middleware
 from cartsnitch_api.routes.alerts import router as alerts_router
 from cartsnitch_api.routes.coupons import router as coupons_router
 from cartsnitch_api.routes.health import router as health_router
@@ -26,7 +26,6 @@ from cartsnitch_api.routes.user import router as user_router
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     from cartsnitch_api.database import dispose_engine
-
     await cache_client.initialize()
     yield
     await cache_client.close()

src/cartsnitch_api/models/user.py

@@ -26,7 +26,9 @@ class User(TimestampMixin, Base):
     email: Mapped[str] = mapped_column(String(255), nullable=False, unique=True)
     hashed_password: Mapped[str | None] = mapped_column(String(255), nullable=True)
     display_name: Mapped[str | None] = mapped_column(String(100))
-    email_verified: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default="false")
+    email_verified: Mapped[bool] = mapped_column(
+        Boolean, nullable=False, server_default="false"
+    )
     image: Mapped[str | None] = mapped_column(Text, nullable=True)
     email_inbound_token: Mapped[str] = mapped_column(
         String(22),
@@ -34,8 +36,7 @@ class User(TimestampMixin, Base):
         unique=True,
         default=lambda: secrets.token_urlsafe(16),
         server_default=sa.text(
-            "replace(replace(trim(trailing '=' from "
-            "encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_')"
+            "replace(replace(trim(trailing '=' from encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_')"
         ),
     )
 

tests/conftest.py

@@ -51,12 +51,21 @@ def disable_rate_limiting():
 
 @pytest.fixture
 def engine():
-    """Sync in-memory SQLite engine for model unit tests."""
-    eng = create_engine("sqlite:///:memory:")
-    from cartsnitch_api.models.user import User
+    """Sync in-memory SQLite engine for model unit tests.
+
+    Strips PostgreSQL-specific server_default expressions so SQLite can
+    handle all column inserts without missing-function errors.
+    """
+    eng = create_engine("sqlite:///:memory:")
+
+    for table in Base.metadata.tables.values():
+        for col in table.columns.values():
+            sd = col.server_default
+            if sd is not None:
+                expr_str = str(sd.expression).lower()
+                if "gen_random_uuid" in expr_str or "gen_random_bytes" in expr_str:
+                    col.server_default = None
 
-    col = User.__table__.columns["email_inbound_token"]
-    col.server_default = None
     Base.metadata.create_all(eng)
     yield eng
     eng.dispose()
@@ -80,12 +89,16 @@ async def db_engine():
         cursor.execute("PRAGMA foreign_keys=ON")
         cursor.close()
 
-    async with engine.begin() as conn:
-        from cartsnitch_api.models.user import User
+    for table in Base.metadata.tables.values():
+        for col in table.columns.values():
+            sd = col.server_default
+            if sd is not None:
+                expr_str = str(sd.expression).lower()
+                if "gen_random_uuid" in expr_str or "gen_random_bytes" in expr_str:
+                    col.server_default = None
 
-        User.__table__.columns["email_inbound_token"].server_default = None
+    async with engine.begin() as conn:
         await conn.run_sync(Base.metadata.create_all)
-        # Create Better-Auth tables (not managed by SQLAlchemy models)
         await conn.execute(
             text("""
             CREATE TABLE IF NOT EXISTS sessions (

tests/test_config.py

@@ -28,10 +28,7 @@ def test_database_url_normalizes_plain_postgresql_prefix():
         "DATABASE_URL": "postgresql://cartsnitch:cartsnitch@localhost:5432/cartsnitch",
     }
     settings = Settings(**env)
-    assert (
-        settings.database_url
-        == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"
-    )
+    assert settings.database_url == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"
 
 
 def test_database_url_preserves_asyncpg_prefix():
@@ -40,16 +37,10 @@ def test_database_url_preserves_asyncpg_prefix():
         "CARTSNITCH_DATABASE_URL": "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch",
     }
     settings = Settings(**env)
-    assert (
-        settings.database_url
-        == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"
-    )
+    assert settings.database_url == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"
 
 
 def test_database_url_default():
     """When neither env var is set, the hardcoded default is used."""
     settings = Settings()
-    assert (
-        settings.database_url
-        == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"
-    )
+    assert settings.database_url == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"

tests/test_encrypted_json.py

@@ -17,6 +17,15 @@ from cartsnitch_api.models.user import User, UserStoreAccount
 @pytest.fixture
 def engine():
     eng = create_engine("sqlite:///:memory:")
+
+    for table in Base.metadata.tables.values():
+        for col in table.columns.values():
+            sd = col.server_default
+            if sd is not None:
+                expr_str = str(sd.expression).lower()
+                if "gen_random_uuid" in expr_str or "gen_random_bytes" in expr_str:
+                    col.server_default = None
+
     Base.metadata.create_all(eng)
     yield eng
     eng.dispose()