Fix error of response example when Content-Disposition header is inline

[kyoshidajp]

The Issue

My action returns binary (Image) data using send_data with disposition: "inline" like this.

class ImagesController < ActionController::Base
  protect_from_forgery

  def show
    path = "/file/to/image.png"
    image = File.open(path, "r")
    send_data image.read, type: "image/png", disposition: "inline"
  end
end

Generation was failed.

require "rails_helper"

RSpec.describe "Images", type: :request do
  describe "show" do
    it "return 200" do
      get "/image/:id" do
        expect(response.status).to eq 200
      end
    end
  end
end

% export OEPNAPI=1
% bundle exec rspec
...
An error occurred in an `after(:suite)` hook.
Failure/Error: elsif o =~ /\n(?!\Z)/  # match \n except blank line at the end of string

ArgumentError:
  invalid byte sequence in UTF-8
# /file/to/rspec-openapi/lib/rspec/openapi/schema_file.rb:29:in `write'
# /file/to/rspec-openapi/lib/rspec/openapi/schema_file.rb:15:in `edit'
# /file/to/rspec-openapi/lib/rspec/openapi/hooks.rb:19:in `block in <main>'

Solution

If Content-Disposition response header is presented, then example will not be shown.

Other information

This PR's spec will fail before merging #23 or other fixing PRs to be modified.

[k0kubun]

Is it possible to add a spec for this?

[kyoshidajp]

I forgot to add spec. I added it.

[k0kubun]

Thanks!