Question

The title is self explanatory.

Everything I’ve tried led to a “undefined method”.

To clarify, I am not trying to test a helper method. I am trying to use a helper method in an integration test.

Answer 1

You just need to include the relevant helper module in your test to make the methods available:

describe "foo" do
  include ActionView::Helpers

  it "does something with a helper method" do
    # use any helper methods here

It’s really as simple as that.