How to call an app helper method from an RSpec test in Rails?

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 he

Answer 1

I'm assuming you're trying to test the helper method. In order to do this you'll have to put your spec file into spec/helpers/. Given you're using the rspec-rails gem, this will provide you a helper method that allows you to call any helper method on it.

There's a nice example over in the official rspec-rails documentation:

require "spec_helper"

describe ApplicationHelper do
  describe "#page_title" do
    it "returns the default title" do
      expect(helper.page_title).to eq("RSpec is your friend")
    end
  end
end