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Are you looking for a reliable way to test your applications? Look no further than the AAA pattern.

The AAA pattern stands for:

1. Arrange
2. Act
3. Assert

This pattern helps you structure your tests in a clear consistent manner, and it is not tied to a particular programming language or testing tool, making it a versatile and effective approach to testing opens a new window .

Have you ever tried to update a Rails app from 5.2 to 6.0 opens a new window , or from 6.0 to 6.1 opens a new window ? If so, you might have seen this deprecation:

DEPRECATION WARNING: Dangerous query method (method whose arguments are used as raw SQL) called with non-attribute argument(s): "random()". Non-attribute arguments will be disallowed in Rails 6.0. This method should not be called with user-provided values, such as request parameters or model attributes. Known-safe values can be passed by wrapping them in Arel.sql(). (called from ...)

Note: While this deprecation message mentions Rails 6.0 as the version where the behavior is disallowed, that change was postponed, so the deprecation also shows in Rails 6.0. The behavior is actually disallowed in Rails 6.1.

What does this deprecation mean exactly? In this article, I will explain that in plain English, what issue it is trying to prevent, and how to fix the problem if you come across it in your codebase.

Recently I got to work on a task that included understanding how to test JavaScript requests with RSpec opens a new window . One thing that I found missing during my time researching solutions was organized and detailed documentation explaining the solutions based on the version of Rails opens a new window and RSpec the application runs on.

Ruby on Rails opens a new window is a popular web application framework that is constantly evolving with new versions being released frequently. While upgrading to a newer Rails version can bring new features, better performance, and security patches/improvements, it can also be a challenging task.

In this blog post, we will discuss 7 common mistakes made while doing Rails upgrades opens a new window and how to avoid them.

doxo opens a new window delivers innovation that transforms the bill pay experience for consumers, billers and financial technology providers. For over eight million consumers, doxo’s all-in-one bill pay makes it simple to organize and pay any bill on any device through a secure checkout.

Since 2017 we have been focusing on upgrading Ruby on Rails applications opens a new window . It’s been quite a fulfilling learning process as we continuously improve our workflow best practices, and internal tooling.

In this article I will go into detail to explain how we determine the best approach to create the roadmap for a successful upgrade project.

Smile.io is the world’s largest rewards program provider. Providing solutions for merchants and e-commerce businesses, its loyalty management software integrates with Shopify, BigCommerce, and Wix to reward customers with points and perks for purchases, referrals, and sharing content.

To automate the Ruby gem release process, we will only need to configure two things, the GitHub Actions workflow, and using conventional commit messages.

Does this sound interesting? Come and let’s dig into it.

A race condition is a type of software bug that occurs when multiple threads or processes access a shared resource simultaneously, and the outcome of the execution depends on the timing of these accesses.

When we allow users to upload images, they usually upload files without any optimization for the web. It’s up to us to add some measure to prevent those images from slowing down our app. Luckily, the different gems commonly used to handle user uploads also give us solutions for this problem.

This is the second part of the Optimizing Images series. In the first article opens a new window we talked about the basic concepts and techniques to optimize raster images, and today we’ll talk about techniques to optimize SVG opens a new window files.

Have you ever wondered what the values on the request queue graph in the APM tool meant or whether a certain value indicated good or poor performance?

The fundamentals of request queue, factors that contribute to longer request queues, and other topics will be covered in this post.

Imagine this scenario: you open a website on your phone, you see an image loading really really slowly, you wonder what’s going on and download the image to see more details… turns out the image is 3000x3000px with a size of 1.5Mb!

So, let’s talk about different ways to optimize images, common problems, and ways to find these issues early.

As of May 1st, 2023, Heroku will no longer be supporting the Heroku-18 stack. The reason for this deprecation is to maintain synchronization with the Ubuntu Long Term Support releases. If you are currently running your Rails application on this stack, when you navigate to the Heroku dashboard you will notice a warning to upgrade to either Heroku-20 or Heroku-22 before the end of the Heroku-18 stack life on April 30th, 2023.

While Heroku-18 will not be supported, do not be alarmed or concerned that the apps running on this stack will stop working. Heroku has confirmed that all existing applications will not be interrupted and non-build functionality will still be available. However, to maintain access to security updates, technical support and the ability to perform new builds, an upgrade will be necessary and is highly recommended.

Upon integrating any performance monitoring tool for your application, you must be observing p95, p99 response times on the dashboards. If you are wondering what do these terms and their values mean, you have come to the right place.