Add multi account support to shpping cart

test/test_shop.py

@@ -147,19 +147,30 @@ def test_remove_item_from_cart_wrong_user(client: APSTestClient, test_db, produc
 def test_finalize_order(client: APSTestClient, test_db, product):
 
     user = create_user_with_account(test_db, "test", balance=100.0)
+    second_account = Account(name=f"Another account")
+    second_account.transactions.append(
+        Transaction(total_amount=Decimal(50.0), type="deposit")
+    )
+    test_db.add(second_account)
+    user.accounts.append(second_account)
 
     user.shopping_cart.items.append(
         OrderItem(product=product, quantity=2, total_amount=product.price * 2)
     )
     test_db.flush()
 
-    response = client.get("/shop/finalize_order", follow_redirects=False)
+    response = client.post(
+        "/shop/finalize_order",
+        follow_redirects=False,
+        data={"account_id": second_account.id},
+    )
     assert response.status_code == 302
 
     assert len(user.shopping_cart.items) == 0
     assert len(user.orders) == 2  # shopping cart + finalized order
 
-    assert user.accounts[0].balance == Decimal(100.0) - (product.price * 2)
+    assert user.accounts[0].balance == Decimal(100.0)
+    assert user.accounts[1].balance == Decimal(50.0) - (product.price * 2)
 
 
 def test_view_order(client: APSTestClient, test_db, product):