Dockerイメージできたとしてどうやってテストしよう。rails cでどこかにリクエストを飛ばせばいいのかな？
弊ぼっちのコードでは
$ RAILS_ENV=development bundle exec rails c
> Request.new("get", "https://mastodon.zunda.ninja/api/v1/instance").perform{|r| r}
[httplog] GET https://mastodon.zunda.ninja/api/v1/instance completed with status code 200 in 0.574483 seconds
=> #<HTTP::Response/1.1 200 OK {"Connection"=>"close", "Server"=>"Mastodon", "X-Frame-Options"=>"DENY", "X-Content-Type-Options"=>"nosniff", "X-Xss-Protection"=>"0", "Permissions-Policy"=>"interest-cohort=()", "X-Ratelimit-Limit"=>"300", "X-Ratelimit-Remaining"=>"297", "X-Ratelimit-Reset"=>"2022-02-09T06:05:00.333081Z", "Date"=>"Wed, 09 Feb 2022 06:01:24 GMT", "Content-Type"=>"application/json; charset=utf-8", "Cache-Control"=>"max-age=180, public", "Vary"=>"Accept-Encoding, Origin", "Content-Encoding"=>"gzip", "Etag"=>"W/\"9f6fa768a9aed57506b67e92d54b3d26\"", "X-Request-Id"=>"d96c246d-003e-42fd-9418-e20b329c6787", "X-Runtime"=>"0.010926", "Strict-Transport-Security"=>"max-age=63072000; includeSubDomains", "Transfer-Encoding"=>"chunked", "Via"=>"1.1 vegur"}>