Refactor test setup: use global setup and fix MembershipFees domain alias

- Remove redundant setup blocks from member_live tests
- Add build_unauthenticated_conn helper for AuthController tests
- Add global setup in conn_case.ex

test/mv_web/controllers/auth_controller_test.exs

@@ -1,21 +1,42 @@
 defmodule MvWeb.AuthControllerTest do
   use MvWeb.ConnCase, async: true
   import Phoenix.LiveViewTest
+  import Phoenix.ConnTest
+
+  # Helper to create an unauthenticated conn (preserves sandbox metadata)
+  defp build_unauthenticated_conn(authenticated_conn) do
+    # Create new conn but preserve sandbox metadata for database access
+    new_conn = build_conn()
+
+    # Copy sandbox metadata from authenticated conn
+    if authenticated_conn.private[:ecto_sandbox] do
+      Plug.Conn.put_private(new_conn, :ecto_sandbox, authenticated_conn.private[:ecto_sandbox])
+    else
+      new_conn
+    end
+  end
 
   # Basic UI tests
-  test "GET /sign-in shows sign in form", %{conn: conn} do
+  test "GET /sign-in shows sign in form", %{conn: authenticated_conn} do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
     conn = get(conn, ~p"/sign-in")
     assert html_response(conn, 200) =~ "Sign in"
   end
 
-  test "GET /sign-out redirects to home", %{conn: conn} do
-    conn = conn_with_oidc_user(conn)
+  test "GET /sign-out redirects to home", %{conn: authenticated_conn} do
+    conn = conn_with_oidc_user(authenticated_conn)
     conn = get(conn, ~p"/sign-out")
     assert redirected_to(conn) == ~p"/"
   end
 
   # Password authentication (LiveView)
-  test "password user can sign in with valid credentials via LiveView", %{conn: conn} do
+  test "password user can sign in with valid credentials via LiveView", %{
+    conn: authenticated_conn
+  } do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     _user =
       create_test_user(%{
         email: "password@example.com",
@@ -35,7 +56,12 @@ defmodule MvWeb.AuthControllerTest do
     assert to =~ "/auth/user/password/sign_in_with_token"
   end
 
-  test "password user with invalid credentials shows error via LiveView", %{conn: conn} do
+  test "password user with invalid credentials shows error via LiveView", %{
+    conn: authenticated_conn
+  } do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     _user =
       create_test_user(%{
         email: "test@example.com",
@@ -55,7 +81,12 @@ defmodule MvWeb.AuthControllerTest do
     assert html =~ "Email or password was incorrect"
   end
 
-  test "password user with non-existent email shows error via LiveView", %{conn: conn} do
+  test "password user with non-existent email shows error via LiveView", %{
+    conn: authenticated_conn
+  } do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     {:ok, view, _html} = live(conn, "/sign-in")
 
     html =
@@ -69,7 +100,10 @@ defmodule MvWeb.AuthControllerTest do
   end
 
   # Registration (LiveView)
-  test "user can register with valid credentials via LiveView", %{conn: conn} do
+  test "user can register with valid credentials via LiveView", %{conn: authenticated_conn} do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     {:ok, view, _html} = live(conn, "/register")
 
     {:error, {:redirect, %{to: to}}} =
@@ -82,7 +116,10 @@ defmodule MvWeb.AuthControllerTest do
     assert to =~ "/auth/user/password/sign_in_with_token"
   end
 
-  test "registration with existing email shows error via LiveView", %{conn: conn} do
+  test "registration with existing email shows error via LiveView", %{conn: authenticated_conn} do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     _user =
       create_test_user(%{
         email: "existing@example.com",
@@ -102,7 +139,10 @@ defmodule MvWeb.AuthControllerTest do
     assert html =~ "has already been taken"
   end
 
-  test "registration with weak password shows error via LiveView", %{conn: conn} do
+  test "registration with weak password shows error via LiveView", %{conn: authenticated_conn} do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     {:ok, view, _html} = live(conn, "/register")
 
     html =
@@ -116,18 +156,27 @@ defmodule MvWeb.AuthControllerTest do
   end
 
   # Access control
-  test "unauthenticated user accessing protected route gets redirected to sign-in", %{conn: conn} do
+  test "unauthenticated user accessing protected route gets redirected to sign-in", %{
+    conn: authenticated_conn
+  } do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
     conn = get(conn, ~p"/members")
     assert redirected_to(conn) == ~p"/sign-in"
   end
 
-  test "authenticated user can access protected route", %{conn: conn} do
-    conn = conn_with_oidc_user(conn)
+  test "authenticated user can access protected route", %{conn: authenticated_conn} do
+    conn = conn_with_oidc_user(authenticated_conn)
     conn = get(conn, ~p"/members")
     assert conn.status == 200
   end
 
-  test "password authenticated user can access protected route via LiveView", %{conn: conn} do
+  test "password authenticated user can access protected route via LiveView", %{
+    conn: authenticated_conn
+  } do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     _user =
       create_test_user(%{
         email: "auth@example.com",
@@ -150,7 +199,12 @@ defmodule MvWeb.AuthControllerTest do
   end
 
   # Edge cases
-  test "user with nil oidc_id can still sign in with password via LiveView", %{conn: conn} do
+  test "user with nil oidc_id can still sign in with password via LiveView", %{
+    conn: authenticated_conn
+  } do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     _user =
       create_test_user(%{
         email: "nil_oidc@example.com",
@@ -170,7 +224,12 @@ defmodule MvWeb.AuthControllerTest do
     assert to =~ "/auth/user/password/sign_in_with_token"
   end
 
-  test "user with empty string oidc_id is handled correctly via LiveView", %{conn: conn} do
+  test "user with empty string oidc_id is handled correctly via LiveView", %{
+    conn: authenticated_conn
+  } do
+    # Create unauthenticated conn for this test
+    conn = build_unauthenticated_conn(authenticated_conn)
+
     _user =
       create_test_user(%{
         email: "empty_oidc@example.com",