How to isolate mail dependency without integrating into data model?

README.md

I'm not sure how to remove the dependency on VerificationMailer without pushing it into the profile model and making the model suddenly care about how to mail verifications.

I WANT to remove it so I don't have any need to load up rails when running the tests, but also want to keep my models sensible and without a lot of knowledge of business logic.

Example usage:

profile = Profile.find(1)
profile.extend Verifier
profile.verify(email: 'myemail@example.com')

verifier.rb

require 'securerandom'
module Verifier
  def verify(hash)
    v = verifications.build(hash)
    v.token = SecureRandom.hex(16)
    if v.valid?
      v.save
      VerificationMailer.basic(v.id).deliver
    end
    v
  end
end

verifier_spec.rb

require 'fast_spec_helper'
require 'verifier'

describe Verifier do
  let(:subject) {
    s = OpenStruct.new
    s.verifications = mock
    s.extend Verifier
  }

  let(:verification) { OpenStruct.new }

  it "queues up an e-mail if the verification is valid" do
    subject.verifications.stub(:build => verification)
    verification.stub(:valid? => true)
    VerificationMailer.should_receive(:basic).and_return(stub.as_null_object)
    subject.verify({})
  end
end

Create a coordinator object that creates the profile, deals with the model, etc, then send the mail. Test that.