require 'rails_helper'

describe AvatarHelper::GravatarURL do

  let(:decorator) { double('decorator').extend(described_class) }
  let(:model) { double('model', id: 1, username: 'satyr', email: email) }

  describe '#avatar_url' do
    subject { decorator.avatar_url(model) }

    context "when user has an email" do
      let(:email) { 'foo@email.com' }

      it { should eq('//gravatar.com/avatar/9dcfeb70fe212ea12562dddd22b0fc92?s=128&d=retro') }
    end

    context "when user has no email" do
      let(:email) { nil }

      it { should eq('//gravatar.com/avatar/40affe80f7becd02ac38d316f7fe7057?s=128&d=retro') }
    end
  end

end