require 'spec_helper' describe UploadSanitizer do describe "#call" do let(:upload) do File.open("/tmp/unsanitized.csv", 'wb:ascii-8bit') do |f| f << "\xEF\xBB\xBF" f << "Test" end end let(:service) { UploadSanitizer.new(File.open(upload).read) } it "sanitizes the uploaded file" do sanitized_upload = service.call expect(sanitized_upload.encoding.name).to eq "UTF-8" expect(sanitized_upload.to_s).to eq "Test" end end end