How to verify that the Rails Helper defines a method?

Question

I am creating a Rails plugin and dynamically adding a helper method. I just want this method to be added. How can I see if the helper responds to a method name?

Answer 1

Try the following:

def test_that_foo_helper_defines_bar
  o = Object.new
  assert !o.respond_to? :bar
  o.extend FooHelper
  assert o.respond_to? :bar
end