require 'test_helper'

class CurrentUserTest < ActiveSupport::TestCase
  setup do
    CurrentUser.user = nil
  end

  context "The current user" do
    should "be set only within the scope of the block" do
      user = FactoryBot.create(:user)

      assert_nil(CurrentUser.user)

      CurrentUser.user = user

      assert_not_nil(CurrentUser.user)
      assert_equal(user.id, CurrentUser.user.id)
    end
  end

  context "A scoped current user" do
    should "reset the current user after the block has exited" do
      user1 = FactoryBot.create(:user)
      user2 = FactoryBot.create(:user)
      CurrentUser.user = user1
      CurrentUser.scoped(user2) do
        assert_equal(user2.id, CurrentUser.user.id)
      end
      assert_equal(user1.id, CurrentUser.user.id)
    end

    should "reset the current user even if an exception is thrown" do
      user1 = FactoryBot.create(:user)
      user2 = FactoryBot.create(:user)
      CurrentUser.user = user1
      assert_raises(RuntimeError) do
        CurrentUser.scoped(user2) do
          assert_equal(user2.id, CurrentUser.user.id)
          raise "ERROR"
        end
      end
      assert_equal(user1.id, CurrentUser.user.id)
    end
  end
end