defmodule Mv.Membership.CustomFieldValueFormatterTest do
  use ExUnit.Case, async: true

  alias Mv.Membership.CustomFieldValueFormatter

  describe "format_custom_field_value/2 for :date" do
    test "formats an Ash.Union date value as ISO-8601" do
      union = %Ash.Union{value: ~D[2024-03-15], type: :date}

      assert CustomFieldValueFormatter.format_custom_field_value(union, %{value_type: :date}) ==
               "2024-03-15"
    end

    test "formats a direct Date value as ISO-8601" do
      assert CustomFieldValueFormatter.format_custom_field_value(~D[2024-03-15], %{
               value_type: :date
             }) == "2024-03-15"
    end

    test "formats an already-stored ISO-8601 string date as ISO-8601" do
      union = %Ash.Union{value: "2024-03-15", type: :date}

      assert CustomFieldValueFormatter.format_custom_field_value(union, %{value_type: :date}) ==
               "2024-03-15"
    end
  end
end