Docs and tests: fix CODE_GUIDELINES structure, use Mv.Fixtures in show_membership_fees_test

- CODE_GUIDELINES: correct custom_field/custom_field_value descriptions, add fixtures.ex to test support
- show_membership_fees_test: use Mv.Fixtures.member_fixture, remove redundant create_member helper

test/mv_web/member_live/show_membership_fees_test.exs

@@ -28,21 +28,6 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
     |> Ash.create!(actor: system_actor)
   end
 
-  # Helper to create a member
-  defp create_member(attrs) do
-    system_actor = Mv.Helpers.SystemActor.get_system_actor()
-
-    default_attrs = %{
-      first_name: "Test",
-      last_name: "Member",
-      email: "test.member.#{System.unique_integer([:positive])}@example.com"
-    }
-
-    attrs = Map.merge(default_attrs, attrs)
-    {:ok, member} = Mv.Membership.create_member(attrs, actor: system_actor)
-    member
-  end
-
   # Helper to create a cycle
   defp create_cycle(member, fee_type, attrs) do
     system_actor = Mv.Helpers.SystemActor.get_system_actor()
@@ -73,7 +58,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
   describe "cycles table display" do
     test "displays all cycles for member", %{conn: conn} do
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
 
       _cycle1 = create_cycle(member, fee_type, %{cycle_start: ~D[2022-01-01], status: :paid})
       _cycle2 = create_cycle(member, fee_type, %{cycle_start: ~D[2023-01-01], status: :unpaid})
@@ -95,7 +80,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
 
     test "table columns show correct data", %{conn: conn} do
       fee_type = create_fee_type(%{interval: :yearly, amount: Decimal.new("60.00")})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
 
       create_cycle(member, fee_type, %{
         cycle_start: ~D[2023-01-01],
@@ -124,7 +109,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
       yearly_type = create_fee_type(%{interval: :yearly, name: "Yearly Type"})
       _monthly_type = create_fee_type(%{interval: :monthly, name: "Monthly Type"})
 
-      member = create_member(%{membership_fee_type_id: yearly_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: yearly_type.id})
 
       {:ok, _view, html} = live(conn, "/members/#{member.id}")
 
@@ -133,7 +118,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
     end
 
     test "shows no type message when no type assigned", %{conn: conn} do
-      member = create_member(%{})
+      member = Mv.Fixtures.member_fixture(%{})
 
       {:ok, _view, html} = live(conn, "/members/#{member.id}")
 
@@ -145,7 +130,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
   describe "status change actions" do
     test "mark as paid works", %{conn: conn} do
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
 
       cycle = create_cycle(member, fee_type, %{cycle_start: ~D[2023-01-01], status: :unpaid})
 
@@ -176,7 +161,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
 
     test "mark as suspended works", %{conn: conn} do
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
 
       cycle = create_cycle(member, fee_type, %{cycle_start: ~D[2023-01-01], status: :unpaid})
 
@@ -207,7 +192,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
 
     test "mark as unpaid works", %{conn: conn} do
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
 
       cycle = create_cycle(member, fee_type, %{cycle_start: ~D[2023-01-01], status: :paid})
 
@@ -240,7 +225,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
   describe "cycle regeneration" do
     test "manual regeneration button exists and can be clicked", %{conn: conn} do
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
 
       {:ok, view, _html} = live(conn, "/members/#{member.id}")
 
@@ -266,7 +251,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
   describe "edge cases" do
     test "handles members without membership fee type gracefully", %{conn: conn} do
       # No fee type
-      member = create_member(%{})
+      member = Mv.Fixtures.member_fixture(%{})
 
       {:ok, _view, html} = live(conn, "/members/#{member.id}")
 
@@ -282,7 +267,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
            conn: conn
          } do
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
       _cycle = create_cycle(member, fee_type, %{cycle_start: ~D[2023-01-01], status: :unpaid})
 
       {:ok, view, _html} = live(conn, "/members/#{member.id}")
@@ -301,7 +286,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
       conn: conn
     } do
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
       cycle = create_cycle(member, fee_type, %{cycle_start: ~D[2023-01-01], status: :unpaid})
 
       {:ok, view, _html} = live(conn, "/members/#{member.id}")
@@ -327,7 +312,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
       # (e.g. via dev tools), the server would enforce policy and show an error.
       # This test verifies that Ash.destroy(cycle, actor: read_only_user) returns Forbidden.
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
       cycle = create_cycle(member, fee_type, %{cycle_start: ~D[2023-01-01], status: :unpaid})
 
       assert {:error, %Ash.Error.Forbidden{}} =
@@ -342,7 +327,7 @@ defmodule MvWeb.MemberLive.ShowMembershipFeesTest do
       conn = put_session(conn, :locale, "en")
 
       fee_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{membership_fee_type_id: fee_type.id})
+      member = Mv.Fixtures.member_fixture(%{membership_fee_type_id: fee_type.id})
       _c1 = create_cycle(member, fee_type, %{cycle_start: ~D[2022-01-01], status: :paid})
       _c2 = create_cycle(member, fee_type, %{cycle_start: ~D[2023-01-01], status: :unpaid})