discourse/spec/models/user_avatar_spec.rb

require 'spec_helper'

describe UserAvatar do
  let(:avatar){
    user = Fabricate(:user)
    user.create_user_avatar!
  }

  it 'can generate a system avatar' do
    avatar.update_system_avatar!
    avatar.system_upload.should_not be_nil
  end

  it 'corrects old system avatars on refresh' do
    upload = Fabricate(:upload)
    user = Fabricate(:user, uploaded_avatar_id: upload.id)
    avatar = UserAvatar.create!(user_id: user.id, system_upload_id: upload.id)
    avatar.update_system_avatar!

    user.reload
    user.uploaded_avatar_id.should_not == upload.id
    avatar.system_upload_id.should == user.uploaded_avatar_id
  end

  it 'can update gravatars' do
    temp = Tempfile.new('test')
    temp.binmode
    # tiny valid png
    temp.write(Base64.decode64("R0lGODlhAQABALMAAAAAAIAAAACAAICAAAAAgIAAgACAgMDAwICAgP8AAAD/AP//AAAA//8A/wD//wBiZCH5BAEAAA8ALAAAAAABAAEAAAQC8EUAOw=="))
    temp.rewind
    FileHelper.expects(:download).returns(temp)
    avatar.update_gravatar!
    temp.unlink
    avatar.gravatar_upload.should_not be_nil
  end
end