Confusing Rspec-puppet deprecation warning: defaults mock_with to :mocha

When running Rspec-puppet tests, a deprecation warning is seen:

Deprecation Warnings:

puppetlabs_spec_helper: defaults `mock_with` to `:mocha`.
  See https://github.com/puppetlabs/puppetlabs_spec_helper#mock_with
  to choose a sensible value for you

Accordingly, I set up a spec_helper with a block like this:

RSpec.configure do |c|
  c.mock_with :mocha
  ...
end

Just like the documentation here suggests. But the warning persists. What is wrong?

Solution

It is actually necessary to open two configuration blocks, whereas the mock_with config must be declared before the puppetlabs_spec_helper is required.

In other words, like this:

RSpec.configure do |c|
  c.mock_with :rspec
end

require 'puppetlabs_spec_helper/module_spec_helper'

RSpec.configure do |c|
  c.formatter = :documentation
  c.tty       = true
  ...
end