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Testing Articles

Written by thoughtbot, your expert partner for design and development.

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    • Design
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  1. 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
  2. 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
  3. 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
  4. What happens when you stop maintaining your Rails application?

    Here are the risks and common scenarios we see when a team doesn’t have a plan for ongoing maintenance for their Rails application. We also share how we support clients in these situations with our new, flexible, Rails Maintenance offering.

    Jeanine Soterwood
    November 21, 2022
    • Good Code
    • TDD
    • Testing
    • Rails
    • Web
    • Technical Debt
  5. Using a Dependency Graph to Visualize RSpec let

    A visual answer to the question “what data is created when I execute this test?”.

    Joël Quenneville
    October 3, 2022
    • Development
    • Web
    • Ruby
    • Rails
    • Testing
  6. We need to talk about fixtures

    How the principle of connascence will help us to move away from fixtures.

    Matheus Sales
    July 4, 2022
    • Fixtures
    • Factories
    • Testing
    • Connascence
  7. It's official - RSpec Training

    Formalizing how we support our clients with unique to you RSpec training.

    Kelly Gebo
    June 15, 2022
    • Ruby
    • Test
    • Testing
    • Mentoring
  8. Testing Techniques: The I/O Table

    Leverage the power of the I/O table mindset to make your tests as maintainable and readable as possible.

    Thiago Araújo Silva
    April 21, 2022
    • Testing
    • Ruby
    • Databases
    • PostgreSQL
  9. Integration Testing with Capybara

    Blend the speed of Rack::Test-driven Integration Tests with the power and utility of Capybara finders and assertions.

    Sean Doyle
    November 3, 2021
    • Rails
    • Testing
    • HTTP
    • HTML
  10. Testing Your Edge Cases

    A little combination math goes a long way to catching edge cases.

    Joël Quenneville
    September 8, 2021
    • Testing
    • Ruby
    • Development
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