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This Week in #dev (Apr 7, 2023)

Eliminating dead code, obsolete methods, and mysterious test failures on newest Rails.
thoughtbot
April 14, 2023
- This Week In Dev
- TIL
- Rails
- JavaScript
- Ruby
- Testing
A journey towards better Ruby on Rails testing practices

Testing Ruby on Rails and avoiding RSpec and FactoryBot anti-patterns.
Rémy Hannequin
March 14, 2023
- Testing
- Ruby
- Development
- Factory
- Ruby On Rails
- RSpec
- Factory Bot
Stubbles - Stubbing and Doubles innit. 🧔

Confession: I’ve always struggled to understand the difference between stubbing and doubles…
Sami Birnbaum
March 10, 2023
- Testing
- RSpec
- Ruby
How to stub Feature Flags with RSpec

Are your feature flags states leaking between your test cases? Stub them all to make your test suite more reliable. Here’s how.
Stefanni Brasil and Elias Rodrigues
February 3, 2023
- Testing
- RSpec
- Rails
- Web
Avoid Merging RSpec "Focused" Tests

Use RSpec’s Focus filter without fear of accidentally turning CI into a single-test false positive.
Stephanie Viccari
February 2, 2023
- RSpec
- Testing
Building Custom RSpec Matchers with Regular Objects

RSpec custom matchers can be written using plain old objects.
Joël Quenneville
February 1, 2023
- Testing
- Ruby
- Rails
CI/CD: Automating Tests and Deployments the Fun Way

Running tests and managing deployments can be a tediously manual process or overwhelming to automate with all the available platforms and tools to choose from. We at thoughtbot want to share how our process has made CI/CD simple and enjoyable.
Victoria Guido and Christopher Kuttruff
January 30, 2023
- Kubernetes
- Testing
- Automation
- Git
- Deployment
- CI
- CI/CD
- AWS
- Docker
- Process
How to validate the presence of a boolean field in a Rails model

A subtle bug happens when validating the presence of boolean fields in Rails. Here’s how to find it before it hits production.
Stefanni Brasil
December 21, 2022
- Testing
- Ruby
- Rails
This week in #dev (Dec 2, 2022)

Running shell commands in Ruby, truly random numbers, fixing flaky tests, and how to get the most out of TypeScript.
thoughtbot
December 20, 2022
- This Week In Dev
- Testing
- Ruby
- TypeScript
- TIL
- Tip
Your flaky tests might be time dependent

Time dependent tests are difficult to diagnose, and the symptoms don’t present themselves until it’s too late. This article will help you determine if your test suite is time dependent.
Steve Polito
December 5, 2022
- Testing
- Rails
- Web
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