product_uploader_spec.rb

require 'rails_helper'

describe ProductUploader do
  include CarrierWave::Test::Matchers

  let(:company)  { seed :master_company }
  let(:uploader) { ProductUploader.new(company, :image) }

  it 'creates image versions' do
    uploader.store!(File.open("#{Rails.root}/spec/support/images/death_star.jpg"))
    expect(uploader.thumb).to   have_dimensions(105, 105)
    expect(uploader.main).to    have_dimensions(250, 250)
    uploader.remove!
  end
end