Question

I would like to write a test for my custom form helper.
Following the instructions from Custom form helpers, I have a form helper like this:

class ActionView::Helpers::FormBuilder
  include ActionView::Helpers::TagHelper
  include ActionView::Helpers::JavaScriptHelper

  def smile_tag(method, options = {})
    ...
  end
end

How would you write a test for smile_tag?

class MyHelperTest < ActionView::TestCase
  test "smile_tag" do
    ...
  end
end

Answer 1

Answering to myself…

I’ve found a project on GitHub where the developer creates form helpers and tests them.
https://github.com/dabit/bootstrap-form (it is a gem for Bootstrap Twitter, the project has not seen changes in months).