defmodule Mv.ConstantsTest do
  @moduledoc """
  Tests for Mv.Constants accessor functions. Focus is on the date filter
  URL parameter prefixes that drive the bookmarkable filter state.
  """
  use ExUnit.Case, async: true

  describe "date filter URL param prefixes" do
    test "join_date_from_param/0 returns jd_from" do
      assert Mv.Constants.join_date_from_param() == "jd_from"
    end

    test "join_date_to_param/0 returns jd_to" do
      assert Mv.Constants.join_date_to_param() == "jd_to"
    end

    test "exit_date_mode_param/0 returns ed_mode" do
      assert Mv.Constants.exit_date_mode_param() == "ed_mode"
    end

    test "exit_date_from_param/0 returns ed_from" do
      assert Mv.Constants.exit_date_from_param() == "ed_from"
    end

    test "exit_date_to_param/0 returns ed_to" do
      assert Mv.Constants.exit_date_to_param() == "ed_to"
    end

    test "custom_date_filter_prefix/0 returns cdf_" do
      assert Mv.Constants.custom_date_filter_prefix() == "cdf_"
    end
  end
end