spec/email_spec.rb


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require 'spec_helper'
require 'net/smtp'

RSpec.describe "sending email" do
  include Rack::Test::Methods

  def app
    RegistrationApp
  end

  context "with delivery error" do
    let(:band_params) { create_band_params }

    before :each do
      @mail_spy = spy("Mail")
      allow(Mail).to receive('new') { @mail_spy }
      allow(@mail_spy).to receive(:deliver!).and_raise(Net::SMTPFatalError.new("Some error message"))

      post '/submit', 'band' => band_params
    end

    it "goes back to the registration form" do
      expect(last_response.body).to match(/form id="registration-form"/)
    end

    it "shows what went wrong" do
      expect(last_response.body).to match(/Some error message/)
    end
  end
end