--- title: "Matz accepts Kernel#then as an alias for Kernel#yield_self" publication: "Ruby Weekly" issue: 401 published_at: "2018-05-31" canonical_url: "https://rubyweekly.com/issues/401" --- This week's Ruby news, issue 401 #401 — May 31, 2018 [Read on the Web](https://rubyweekly.com/issues/401) Ruby Weekly ['then' Is Now an Alias for 'yield_self' (in Ruby 2.6)](https://bugs.ruby-lang.org/issues/14594) — [Kernel#yield_self](https://blog.bigbinary.com/2017/12/12/ruby-2-5-added-yield_self.html) was added to Ruby 2.5 as a way to yield the receiver to the given block and return any onward result. It’s [awesome](https://zverok.github.io/blog/2018-01-24-yield_self.html) but there have been [doubts over its name](https://zverok.github.io/blog/2018-03-23-yield_self2.html). Matz has now considered things and has declared `then` as a suitable alternative. Ruby Bug Tracker [Setting Up a BDD Stack on a Rails 5 App](https://semaphoreci.com/community/tutorials/setting-up-a-bdd-stack-on-a-rails-5-application) — Learn how to generate a new Rails 5 application with all the necessary tools to set up a behavior-driven development (BDD) flow - RSpec, Cucumber, FactoryBot, etc. Marko Anastasov [![\](https://copm.s3.amazonaws.com/28f31edc.png)](https://monday.com/lp/mb/status-video?utm_source=mb&utm_campaign=newsletters&utm_medium=ruby_weekly_may18&utm_bdg=exp) [The New Generation of Project Management Tools Is Here and It’s Visual](https://monday.com/lp/mb/status-video?utm_source=mb&utm_campaign=newsletters&utm_medium=ruby_weekly_may18&utm_bdg=exp) — [monday.com](https://monday.com) is a project management tool your team will actually enjoy using. It makes it fun and easy for everyone to collaborate, focus on what's important, and get more done at work. A visual project management tool that’ll help you achieve more together. monday.com sponsor [JRuby 9.2.0.0 Released](http://jruby.org/2018/05/24/jruby-9-2-0-0.html) — The highlight feature in this release of the popular JVM-based Ruby implementation is **Ruby 2.5 compatibility.** Official JRuby Blog [Spina CMS 1.0: A CMS for Rails Devs](http://www.spinacms.com/) — An attractive CMS for Rails 5.2 has reached its 1.0 milestone and has added support for ActiveStorage. [GitHub repo](https://github.com/SpinaCMS/Spina). Bram Jetten [TestProf: Factory Therapy for Your Ruby Tests](https://evilmartians.com/chronicles/testprof-2-factory-therapy-for-your-ruby-tests-rspec-minitest) — TestProf is a set of tools aimed at making your tests ‘healthier.’ We linked to an [introductory post](https://evilmartians.com/chronicles/testprof-a-good-doctor-for-slow-ruby-tests) last year. In this post, the tools targeting factories and their overuse are demonstrated. Vladimir Dementyev [A Simple, Async, Map/Reduce Queue for Ruby](https://blog.dnsimple.com/2018/05/simple-async-map-reduce-queue-for-ruby/) — Not many people would choose Ruby to perform a task that requires concurrency, but Luca Guidi at DNSimple did and he was pleasantly surprised. DNSimple [9 Ruby Conferences Worth Seeing This Summer](https://rubygarage.org/blog/international-ruby-conferences-summer-2018) — If you go to all 9, you will have both our admiration and envy. Ruby Garage 💻 Jobs [Copart Is Looking for a Senior Ruby Developer — Dallas, TX](https://recruiting.adp.com/srccar/public/isilogin.guid?GUID=&METHOD=GET&REALMOID=06-5f6b178c-b011-1022-a4bf-8500b9840000&SMAGENTNAME=-SM-BHacJqh%2BH3Frwvh7PHr4Kl3l8lokKvPKkIxR0Dcc%2FqKGo6Czfp5LI0TksG1mrkeK&SMAUTHREASON=0&TYPE=33554433&__tx_annotation=false&c=1214601&d=ExternalCareerSite&isa=Recruiter&r=5000338729506) — We're seeking a passionate, opinionated Ruby developer to build core product from the ground up for a $12B stable and growing company in the US and India. Copart Inc [Senior Software Engineer - San Francisco, CA](https://jobs.lever.co/hoteltonight/b0c9e2c4-b082-492e-9261-763bdfc84a29?lever-source=cooperpressmay2018) — Love to travel? Help us build and scale the platform behind the best mobile hotel booking experience out there. HotelTonight [Ruby Expert? 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Igor Morozov [Upgrading Rails 4 Controller Tests to Rails 5](http://engineering.appfolio.com/appfolio-engineering/2018/5/25/upgrading-rails-4-controller-tests-to-rails-5) Bryce Boe [Active Record’s .first and .last May Not Mean What You Think](https://andycroll.com/ruby/first-and-last-may-not-mean-what-you-think/) — Especially if you’re using UUIDs… Andy Croll [Rails Gaining a Eumerable#index_with Method](https://github.com/rails/rails/pull/32523) — A handy method for more quickly building hashes from an enumerable of keys. Kasper Timm Hansen [Running Chrome Headless, Selenium and Capybara Inside GitLab CI and Docker](https://blog.phusion.nl/2018/05/24/using-chrome-headless-selenium-and-capybara-inside-gitlab-runner-and-docker/) — Selenium and Chrome Headless were failing with mysterious errors when run in GitLab CI and Docker. Here’s why, and also how Phusion fixed it. Hongli Lai [Slow CI Build? Make It Run in 2 Minutes or Less with Boosters](https://semaphoreci.com/landers/boosters-rails?utm_source=rubyweekly&utm_medium=email&utm_campaign=boosters-rubyweekly-20180531) — Get your team a faster feedback loop. Automatically parallelize your Rails CI build in one click. Semaphore sponsor [How to Run Tests in Minitest Continuously with Dynamic Test File Loading](http://docs.knapsackpro.com/2018/how-to-run-tests-in-minitest-continuously-with-dynamic-test-files-loading) Artur Trzop [Faster JSON Generation using Postgres's JSON Function](https://blog.bigbinary.com/2018/05/29/generating-json-using-postgresql-json-function.html) — If you want to boost JSON serialization and are willing to sacrifice some complexity, check this. Chirag Shah [Quick Tip: Content-Type application/json by Default in Rails 5](https://blog.eq8.eu/til/content-type-applicationjson-by-default-in-rails-5.html) — Ideal for Rails API-only apps, perhaps. Tomas Valent ▶[Inside Active Storage: A Code Review of Rails' New Framework](https://www.youtube.com/watch?v=-_w4uqoVSpw) Claudio Baccigalupo [Ruby's Magical 'Enumerable' Module](https://blog.appsignal.com/2018/05/29/ruby-magic-enumerable-and-enumerator.html) — `Each` of you should `map` out a block of time and read this.. ;-) Jeff Kreeftmeijer [The Case for 'before_validation' Callback: Complex State Normalization](https://karolgalanciak.com/blog/2018/05/27/the-case-for-before-validation-callback-complex-state-normalization/) — Usually, posts about ActiveModel callbacks are warning you off but here’s a case for using one. Karol Galanciak 🔧 Code & Tools [Stealth: A Framework for Building Conversational Bots](https://github.com/hellostealth/stealth) — A Rails-inspired MVC framework for building conversational voice and chat bots. Currently the strongest integrations are with Facebook Messenger, Twilio, and [Amazon Comprehend](https://aws.amazon.com/comprehend/) for NLP. 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