Question

I’m trying to write RSpec tests for a gem I wrote, but I am having trouble getting the tests to recognize the Modules I wrote and the methods related to those Modules.

Here is my spec_helper.rb:

require 'rspec'

RSpec.configure do |config|

end

My Spec file:

require 'spec_helper'

describe MyCompany::SomeHelper do
  describe '#self.get_token' do
    token = MyCompany::SomeHelper.get_token
  end
end

When I run the test, I get this error message: undefined method `get_token’ for MyCompany::SomeHelper:Module (NoMethodError).

The gem itself works fine when I include it in another application though. I think I may not be configuring something in RSpec correctly, can anyone help?

Answer 1

The confusion is probably because of Rails, because Rails loads everything and requiring ‘spec_helper’ is the only thing you need to do there.

RSpec automatically adds the lib directory to your load path, so you can require your code from your specs with ease.

Let’s say you have this file to be tested: lib/my_gem_name/my_class.rb, then put this code on top of your spec:

require 'my_gem_name/my_class'

If you’re not going to configure anything in your spec_helper, you don’t need to create it and require it. In fact, I would recommend against it if you’re doing purely isolated tests.