```ruby
require 'spec_helper'
describe RoundRobin do
  describe "#add" do
    it "should add a job when calling add" do
      lambda do
        RoundRobin.add(MyJob, 42)
      end.should change(RoundRobin::Job, :count).by(1)
    end

    it "should return a job" do
      job = RoundRobin.add(MyJob, 42)
      job.should be_a(RoundRobin::Job)
      job.id.should_not be_blank
    end
  end

  describe "#clear" do
    it "should remove all jobs" do
      RoundRobin::Job.create(:handler => {})
      RoundRobin::Job.create(:handler => {})
      lambda do
        RoundRobin.clear
      end.should change(RoundRobin::Job, :count).to(0)
    end
  end
end
```

Check that RoundRobin.add returns an ActiveRecord object
user
```ruby
require 'spec_helper'
describe RoundRobin do
  describe "#add" do
    it "should return a Job that descends from ActiveRecord::Base" do
      job = RoundRobin.add(MyJob, 42)
      job.should be_a ActiveRecord::Base
    end

    it "should add a job when calling add" do
      lambda do
        RoundRobin.add(MyJob, 42)
      end.should change(RoundRobin::Job, :count).by(1)
    end

    it "should return a job" do
      job = RoundRobin.add(MyJob, 42)
      job.should be_a(RoundRobin::Job)
      job.id.should_not be_blank
    end
  end

  describe "#clear" do
    it "should remove all jobs" do
      RoundRobin::Job.create(:handler => {})
      RoundRobin::Job.create(:handler => {})
      lambda do
        RoundRobin.clear
      end.should change(RoundRobin::Job, :count).to(0)
    end
  end
end
```
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