RSpec and FactoryBot: SyntaxError: /home/pranav/test/app/controllers/batches_controller.rb:13: unexpected end-of-input, expecting `end'

I am testing my Ruby on rails application using RSpec, FactoryBot and shoulda gems. I've tested my models and it worked perfectly but when I tried to test the controller it shows this error. I also checked my batches_controller.rb file.

batches_controller.rb

class BatchesController < ApplicationController
    before_action :authenticate_user!
  def index
    @batches = Batch.all
  end

  def new
    @batch = Batch.new

  def show
    @batch = Batch.find(params[:id])
  end
end

spec/support/devise.rb

require_relative './controller_macros'

RSpec.configure do |config|
    config.include Devise::Test::ControllerHelpers, :type => :controller
    config.extend ControllerMacros, :type => :controller
end

spec/support/controller_macros.rb

module ControllerMacros
    def login_admin
        before(:each) do 
            @request.env["devise.mapping"] = Devise.mappings[:admin]
            sign_in FactoryBot.create(:admin)
        end
    end

    def login_user
        before(:each) do 
            @request.env["devise.mapping"] = Devise.mappings[:user]
            sign_in FactoryBot.create(:user)
        end
    end
end

spec/rails_helper.rb

ENV['RAILS_ENV'] ||= 'test'
require File.expand_path('../config/environment', __dir__)
require 'spec_helper'
require 'rspec/rails'
abort("The Rails environment is running in production mode!") if Rails.env.production?
require 'factory_bot_rails'
require 'devise'
begin
  ActiveRecord::Migration.maintain_test_schema!
rescue ActiveRecord::PendingMigrationError => e
  puts e.to_s.strip
  exit 1
end
RSpec.configure do |config|
  config.fixture_path = "#{::Rails.root}/spec/fixtures"
  config.include FactoryBot::Syntax::Methods
  config.use_transactional_fixtures = true
  # https://relishapp.com/rspec/rspec-rails/docs
  config.infer_spec_type_from_file_location!
  config.filter_rails_from_backtrace!
  config.expect_with :rspec do |c|
    c.syntax = :expect
  end
  config.include Devise::Test::ControllerHelpers, :type => :controller
end
Shoulda::Matchers.configure do |config|
  config.integrate do |with|
    with.test_framework :rspec
    with.library :rails
  end
end

spec/controllers/batches_controller_spec.rb

require 'rails_helper'
require_relative "../support/devise"

RSpec.describe BatchesController, type: :controller do
  describe "user signed in or not" do
    login_user
    context "first test" do
      it " have a current_user" do
        expect(subject.current_user).to_not eq(nil)
      end
    end
  end
end

Gemfile

source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }
ruby '2.7.1'
gem 'rails', '~> 6.0.3', '>= 6.0.3.1'
gem 'devise'
gem 'activeadmin'
gem 'pg', '>= 0.18', '< 2.0'
gem 'puma', '~> 4.1'
gem 'sass-rails', '>= 6'
gem 'webpacker', '~> 4.0'
gem 'turbolinks', '~> 5'
gem 'jbuilder', '~> 2.7'
gem 'bootsnap', '>= 1.4.2', require: false

group :development, :test do
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
  gem 'rspec-rails', ">= 3.9.0"
  gem 'shoulda-matchers'
  gem 'factory_bot_rails'
end

group :development do
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '~> 3.2'
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
end

group :test do
  gem 'capybara', '>= 2.15'
  gem 'selenium-webdriver'
  gem 'webdrivers'
end

gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

What am I doing wrong here?