zammad/spec/lib/static_assets_spec.rb

require 'rails_helper'

RSpec.describe StaticAssets do
  describe '.data_url_attributes' do
    it 'raises error if empty string given' do
      expect { described_class.data_url_attributes('') }.to raise_error(/Unable to parse data url/)
    end

    it 'raises error if nil' do
      expect { described_class.data_url_attributes(nil) }.to raise_error(/Unable to parse data url/)
    end
  end
end