test: fee type column visibility, CSV export, export controller

FieldVisibility pseudo fields and visible selection; MembersCSV fee type
column; export accepts membership_fee_type and returns Fee Type column.

test/mv_web/controllers/member_export_controller_test.exs

@@ -146,6 +146,37 @@ defmodule MvWeb.MemberExportControllerTest do
       refute header =~ "unknown_field"
     end
 
+    test "export includes membership_fee_type column when requested", %{
+      conn: conn,
+      member1: m1
+    } do
+      payload = %{
+        "selected_ids" => [m1.id],
+        "member_fields" => ["first_name", "membership_fee_type", "email"],
+        "custom_field_ids" => [],
+        "query" => nil,
+        "sort_field" => nil,
+        "sort_order" => nil
+      }
+
+      conn = get(conn, "/members")
+      csrf_token = csrf_token_from_conn(conn)
+
+      conn =
+        post(conn, "/members/export.csv", %{
+          "payload" => Jason.encode!(payload),
+          "_csrf_token" => csrf_token
+        })
+
+      assert conn.status == 200
+      body = response(conn, 200)
+      header = body |> export_lines() |> hd()
+
+      # Fee Type column is included (label from MemberFields.label(:membership_fee_type))
+      assert header =~ "Fee Type"
+      assert body =~ "Alice"
+    end
+
     test "export includes membership_fee_status computed field when requested", %{
       conn: conn,
       member1: m1

test/mv_web/live/member_live/index/field_visibility_test.exs

@@ -56,6 +56,14 @@ defmodule MvWeb.MemberLive.Index.FieldVisibilityTest do
         assert field in result
       end)
     end
+
+    test "includes pseudo member fields (membership_fee_status, membership_fee_type, groups)" do
+      result = FieldVisibility.get_all_available_fields([])
+
+      assert :membership_fee_status in result
+      assert :membership_fee_type in result
+      assert :groups in result
+    end
   end
 
   describe "merge_with_global_settings/3" do
@@ -278,6 +286,20 @@ defmodule MvWeb.MemberLive.Index.FieldVisibilityTest do
     test "handles invalid input" do
       assert FieldVisibility.get_visible_member_fields(nil) == []
     end
+
+    test "returns membership_fee_type when visible in selection" do
+      selection = %{
+        "first_name" => true,
+        "membership_fee_type" => true,
+        "groups" => false
+      }
+
+      result = FieldVisibility.get_visible_member_fields(selection)
+
+      assert :membership_fee_type in result
+      assert :first_name in result
+      refute :groups in result
+    end
   end
 
   describe "get_visible_custom_fields/1" do