Twitter client factory second spec

twitter_client_factory_spec.rb

context 'when config is not passed' do
  before do
    @consumer_key_backup = ENV['TWITTER_CONSUMER_KEY']
    @consumer_secret_backup = ENV['TWITTER_CONSUMER_SECRET']
    @access_token_backup = ENV['TWITTER_ACCESS_TOKEN']
    @access_token_secret_backup = ENV['TWITTER_ACCESS_TOKEN_SECRET']

    ENV['TWITTER_CONSUMER_KEY'] = 'ck'
    ENV['TWITTER_CONSUMER_SECRET'] = 'cs'
    ENV['TWITTER_ACCESS_TOKEN'] = 'at'
    ENV['TWITTER_ACCESS_TOKEN_SECRET'] = 'ats'
  end

  after do
    ENV['TWITTER_CONSUMER_KEY'] = @consumer_key_backup
    ENV['TWITTER_CONSUMER_SECRET'] = @consumer_secret_backup
    ENV['TWITTER_ACCESS_TOKEN'] = @access_token_backup
    ENV['TWITTER_ACCESS_TOKEN_SECRET'] = @access_token_secret_backup
  end

  it 'picks config values from the environment' do
    instance = TwitterClientFactory.new.call

    expect(instance).to have_attributes(
      'consumer_key' => 'ck',
      'consumer_secret' => 'cs',
      'access_token' => 'at',
      'access_token_secret' => 'ats'
    )
  end
end