Topics
Check out the different Ruby, Rails, Javascript, and other topics we've covered
Lessons
See the full list of screencasts to learn from
Guides
Tutorials to help you setup Rails on your development and deploy to production
A lot of Ruby code is "magic". We'll explain the magic and see how it works using the powerful tools Ruby gives us.
Accept subscription and one-time payments with Stripe in your Rails apps
Expert advice on keeping Rails apps organized and fast.
Cheap, easy hosting for Ruby and Rails apps.
Launch your product business way faster with our SaaS template.
A weekly podcast on web development and building products with Ruby, Rails, Javascript, and more.
Find your next Ruby on Rails Job.
Testing your Meilisearch integration in Rails can be a little tricky. This episode, we'll talk through how to setup Meilisearch in your test suite to index fixtures and more.
In this video, we will explore how the concepts we looked at in "Flattening Scopes in Ruby" are used in Rails by taking a look at the assert_difference method. We will walk through how the method works while taking note of where the concepts are applied.
Rails apps and Rubygems might need to support multiple databases. We can use the DATABASE_URL environment variable to quickly swap out the database that Rails uses in CI, local testing, and more.
Learn how to use system tests for file uploads with file input fields and drag & drop with Uppy and Dropzone
I found a bug in the Kredis gem the other day and wanted to walk you through my thought process on debugging and using TDD to fix the bug for the future.
Ever wondered how to generate contrasting colors in your Rails app? It's easy using the YIQ calculation and we can test it easily with helper tests.
Testing a gem or your Rails app against multiple Ruby and Rails versions is super useful, but we also take it a step further and test our gem against several different databases too
Continuous Deployment is the automation of deploying any code that gets merged into your main or release branch. We can easily set up GitHub Actions to run CI and CD for us to automate everything.
ActsAsTenant needed some maintenance so we're going to walk through the steps of refactoring the gem and Rspec test suite
Appraisal lets us test our code against different versions of dependencies. This is fantastic if you're building Rubygems that must work with multiple versions of Rails or other dependencies
Contribute to Rails by discovering something you could improve and learning how to add features to Rails
Add code coverage to your app using SimpleCov and RailsBytes. We'll walk through installing simplecov and creating a RailsByte to automate it for us going forward.
Testing file uploads can be tricky, but Shrine makes both file uploading and testing a lot easier than you might expect.
Learn how to test ActiveStorage file uploads and create fixtures with ActiveStorage attachments
Mocks are a handy tool for writing tests in Ruby. You can use them to fake an object and verify that the correct methods were called against it. Perfect for testing a method that integrates closely with another class or module.
Test stubs are very handy when you want to mock out the response to a method call. This allows your tests to be more reliable and skip long running or unnecessary method calls.
Test suites often become brittle over time where small changes end up breaking various tests. One way to avoid that is by avoiding using hardcoded values in your test suite.
Testing ActionCable authentication with Devise is pretty easy, especially when we build our own helpers to stub out Warden
Rails provides several really useful test helpers for ActionMailer so we can quickly iterate on our design, test that our code queues up the right emails, and make sure our emails contain the right content.
Rails provides several helper methods for testing times and dates in your applications. You can now freeze time and time travel like in the movies!
Join 61,257+ developers who get early access to new tutorials, screencasts, articles, and more.
We care about the protection of your data. Read our Privacy Policy.
Screencast tutorials to help you learn Ruby on Rails, Javascript, Hotwire, Turbo, Stimulus.js, PostgreSQL, MySQL, Ubuntu, and more. Icons by Icons8
© 2022 GoRails, LLC. All rights reserved.
