```ruby
require 'test_helper'

class BillsControllerTest < ActionController::TestCase
  test "should get index" do
    get :index
    assert_response :success
  end

  test "should get add" do
    get :add
    assert_response :success
  end

end
```

Remove tests so Travis CI build passes.
user
```ruby
require 'test_helper'

class BillsControllerTest < ActionController::TestCase

end
```
assistant