How to test a Sidekiq worker with RSpec?

I'm doing a test using RSPEC, and used Sidekiq for background jobs.

Since, there's no generator for workers in rspec, not sure what to use.

https://relishapp.com/rspec/rspec-rails/docs/generators

require 'spec_helper'

RSpec.describe TestWorker, type: ? do # ex. :worker :sidekiq ...
  describe "TestWorker" do
    it "" do
     ....
    end
  end
end

bundle exec rspec spec/workers/test_worker_spec.rb

Doing like below, i'm getting: uninitialized constant TestWorker require 'spec_helper'

describe TestWorker do
  it "" do
   ....
  end
end

As i tried, gem rspec-sidekiq https://github.com/philostler/rspec-sidekiq

Can someone provide a sample template for testing app/workers/ in Rspec.

Thanks.

I have not used the rspec-sidekiq gem, however, here is an example of how I am checking for Background jobs which uses sidekiq

# app/spec/workers/demo_worker_spec.rb

require 'rails_helper'
require 'sidekiq/testing'
Sidekiq::Testing.fake!

RSpec.describe DemoWorker, type: :worker do

  describe "Sidekiq Worker" do

    let (:demo) { FactoryGirl.create(:demo) }

    it "should respond to #perform" do
      expect(DemoWorker.new).to respond_to(:perform)
    end

    describe "Demo" do

      before do
        Sidekiq::Extensions.enable_delay!
        Sidekiq::Worker.clear_all
      end

      it "should enqueue a Email and SMS job" do
        assert_equal 0, Sidekiq::Extensions::DelayedMailer.jobs.size
        Mailer.delay.demo_request(demo.id)
        assert_equal 1, Sidekiq::Extensions::DelayedMailer.jobs.size
      end

    end

  end

end

1. As of I'm checking, if the instance responds to perform.
2. Then, I'm asserting before and after the job is scheduled.