feat: calculate member.email from user.email

test/membership/member_email_test.exs

@@ -0,0 +1,53 @@
+defmodule Mv.Membership.MemberEmailTest do
+  use Mv.DataCase, async: true
+  alias Mv.Membership
+
+  describe "member_email and computed email field" do
+    test "email shows member_email when no user is assigned" do
+      {:ok, member} =
+        Membership.create_member(%{
+          first_name: "Test",
+          last_name: "Member",
+          member_email: "memberonly@example.com"
+        })
+
+      # Load the email calculation
+      member = Ash.load!(member, :email, domain: Membership)
+      
+      assert member.member_email == "memberonly@example.com"
+      assert member.email == "memberonly@example.com"
+    end
+
+    test "updating member_email updates the computed email when no user is assigned" do
+      {:ok, member} =
+        Membership.create_member(%{
+          first_name: "Update",
+          last_name: "Test",
+          member_email: "old@example.com"
+        })
+
+      {:ok, member} =
+        Membership.update_member(member, %{member_email: "new@example.com"})
+
+      # Load the email calculation
+      member = Ash.load!(member, :email, domain: Membership)
+      
+      assert member.member_email == "new@example.com"
+      assert member.email == "new@example.com"
+    end
+
+    test "member can be created without member_email" do
+      {:ok, member} =
+        Membership.create_member(%{
+          first_name: "No",
+          last_name: "Email"
+        })
+
+      # Load the email calculation
+      member = Ash.load!(member, :email, domain: Membership)
+      
+      assert member.member_email == nil
+      assert member.email == nil
+    end
+  end
+end