Ruby on Rails Screencast Tutorials - Page 24

Today we're refactoring Andrew Mason's GitHub Action that runs Rubocop against your repository. We'll pull out some concepts, remove conditionals, and use several other techniques to clean up the code.

12m

Testing Rails ActionCable with Devise

Dec 09, 2019 Pro

Testing ActionCable authentication with Devise is pretty easy, especially when we build our own helpers to stub out Warden

13m

How to test ActionMailer in Rails

Dec 02, 2019 Pro

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.

Testing Times & Dates with Rails

Nov 20, 2019

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!

How to Test Background Jobs with Active Job

Nov 13, 2019

Learn how to test Active Job in your Ruby on Rails application

10m

Testing External APIs with VCR

Oct 29, 2019 Pro

Testing integrations with external APIs in your Rails app can be hard. You don't know what requests are being made (or even the responses), so how can you properly mock them out? VCR to the rescue.

Testing API Integrations with WebMock

Oct 23, 2019 Pro

WebMock is a fantastic way to stub out and mock your HTTP requests. It will actually throw an exception in your test suite when an HTTP request is made so that you know when you're hitting an external API that you haven't stubbed out correctly.

14m

GitHub Actions with Ruby on Rails: Setting up Continuous Integration

Oct 17, 2019

Learn how to set up GitHub Actions to run Continuous Integration (CI) with Ruby on Rails

13m

How to write System Tests in Rails

Oct 09, 2019

System tests allow you to use a browser for testing your Rails app including Javascript

14m

How to write Controller & Integration Tests in Rails

Oct 02, 2019 Pro

Learn how to write integration tests in Rails to test controllers and actions

How to use Devise Test Helpers

Sep 25, 2019

Adding Devise test helpers allows you to quickly login a user for testing controllers in Rails

13m

How to use Fixtures to create sample test data

Sep 18, 2019 Pro

You can use Fixtures in Rails to create sample database records for your tests to run against. They're easy to setup and extremely quick.

13m

Test Driven Development Basics

Sep 10, 2019 Pro

Test Driven Development, or TDD, is a pretty simple process that allows you to write your code in conjunction with tests to ensure a high level of confidence and code coverage.

How to Test Validations in Rails

Sep 05, 2019

Learn how to write tests for validations on ActiveRecord objects in Ruby on Rails

14m

How to use Multiple Databases in Rails 6.0

Aug 27, 2019

With Rails 6.0, you can now define multiple primary and replica databases, define separate migrations for each primary database, and configure each model to read and write from different databases.

10m

Handle Race Conditions with Pessimistic Locking

Aug 22, 2019 Pro

Race conditions can cause problems with data integrity. We can prevent these issues with Pessimistic Locking in ActiveRecord which uses database row-level locking.

10m

Preventing Conflicts with Optimistic Locking

Aug 15, 2019 Pro

When things (users, jobs, etc) attempt to update the same record at the same time, we can often lose changes. Optimistic locking uses a lock version number to warn you about updating stale objects so you can handle that safely.

15m

How to use AMP with Ruby on Rails

Aug 08, 2019 Pro

Learn how to add support for Accelerated Mobile Pages (AMP) from Google to Ruby on Rails in this tutorial

Ruby's Array() and Array.wrap

Jul 30, 2019

Learn how to remove conditionals and make your code simpler and more reliable using Ruby and ActiveSupport's Array wrap methods

17m

How to use Twilio Markup Language (TwiML) in Rails

Jul 16, 2019 Pro

Reply to inbound SMS and phone calls using TwiML to create XML responses to Twilio conversations

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Refactoring Rubocop GitHub Action

Dec 16, 2019 Pro