require 'test/test_helper'

class RememberableTest < ActiveSupport::TestCase

  def setup
    Devise::Models.remember_for = 1
  end

  test 'should respond to remember_me attribute' do
    user = new_user
    assert user.respond_to?(:remember_me)
  end

  test 'remember_me should generate a new token and save the record without validating' do
    user = create_user
    user.expects(:valid?).never
    token = user.remember_token
    user.remember_me!
    assert_not_equal token, user.remember_token
    assert_not user.changed?
  end

  test 'remember_me should calculate expires_at based on remember_for setup' do
    user = create_user
    assert_not user.remember_created_at?
    user.remember_me!
    assert user.remember_created_at?
    assert_equal Date.today, user.remember_created_at.to_date
  end

  test 'forget_me should clear remember token and save the record without validating' do
    user = create_user
    user.remember_me!
    assert user.remember_token?
    user.expects(:valid?).never
    user.forget_me!
    assert_not user.remember_token?
    assert_not user.changed?
  end

  test 'forget_me should clear remember_expires_at' do
    user = create_user
    user.remember_me!
    assert user.remember_created_at?
    user.forget_me!
    assert_not user.remember_created_at?
  end

  test 'forget should do nothing if no remember token exists' do
    user = create_user
    user.expects(:save).never
    user.forget_me!
  end

  test 'valid remember token' do
    user = create_user
    assert_not user.valid_remember_token?(user.remember_token)
    user.remember_me!
    assert user.valid_remember_token?(user.remember_token)
    user.forget_me!
    assert_not user.valid_remember_token?(user.remember_token)
  end

  test 'valid remember token should also verify if remember is not expired' do
    user = create_user
    user.remember_me!
    user.update_attribute(:remember_created_at, 3.days.ago)
    assert_not user.valid_remember_token?(user.remember_token)
  end

  test 'serialize into cookie' do
    user = create_user
    user.remember_me!
    assert_equal "#{user.id}::#{user.remember_token}", User.serialize_into_cookie(user)
  end

  test 'serialize from cookie' do
    user = create_user
    user.remember_me!
    assert_equal user, User.serialize_from_cookie("#{user.id}::#{user.remember_token}")
  end

  test 'serialize should return nil if no user is found' do
    assert_nil User.serialize_from_cookie('0::123')
  end

  test 'remember me return nil if is a valid user with invalid token' do
    user = create_user
    assert_nil User.serialize_from_cookie("#{user.id}::#{user.remember_token}123")
  end

  test 'remember for should fallback to devise remember for default configuration' do
    begin
      remember_for = Devise::Models.remember_for
      user = create_user
      Devise::Models.remember_for = 1.day
      user.remember_me!
      assert_not user.remember_expired?
      Devise::Models.remember_for = 0.days
      user.remember_me!
      assert user.remember_expired?
    ensure
      Devise::Models.remember_for = remember_for
    end
  end

  test 'remember expires at should sum date of creation with remember for configuration' do
    Devise::Models.remember_for = 3.days
    user = create_user
    user.remember_me!
    assert_equal 3.days.from_now.to_date, user.remember_expires_at.to_date
    Devise::Models.remember_for = 5.days
    assert_equal 5.days.from_now.to_date, user.remember_expires_at.to_date
  end

  test 'remember should be expired if remember_for is zero' do
    Devise::Models.remember_for = 0.days
    user = create_user
    user.remember_me!
    assert user.remember_expired?
  end

  test 'remember should be expired if it was created before limit time' do
    Devise::Models.remember_for = 1.day
    user = create_user
    user.remember_me!
    user.update_attribute(:remember_created_at, 2.days.ago)
    assert user.remember_expired?
  end

  test 'remember should not be expired if it was created whitin the limit time' do
    Devise::Models.remember_for = 30.days
    user = create_user
    user.remember_me!
    user.update_attribute(:remember_created_at, 30.days.ago + 2.minutes)
    assert_not user.remember_expired?
  end
end