Ruby's standard library includes a class for creating temporary directories. Similar to Tempfile it creates a unique directory name...
To allow HTTP 304 responses, Rails offers the fresh_when method for controllers. The most common way is to pass...
For Rails models where only one of multiple attributes may be filled out at the same time, there is no...
Greg Molnar has written a neat article about creating a single-file Rails app. This is not meant for production...
While working on a Rails application, your code base will grow a collection of different file types including: Ruby (business...
In our monitoring, RabbitMQ queues like aliveness-test may show up as unresponsive, with a ping timeout after 10 seconds...
Beim schreiben von Scripts ist es nützlich Tests zu schreiben um bei Änderungen nicht alles nochmals manuell testen zu müssen...
Based on the Ruby Basics Card in the developer Curriculum Ruby is the programming language we use on the backend...
I recently wanted to add a model for address information but also wanted to add a unique index to those...
When changing code in mailers, updating the corresponding mailer preview can be forgotten very easily. Mailer previews can be tested...
Testing file download links in an end-to-end test can be painful, especially with Selenium. The attached download_helpers.rb provides...
While verifying doubles in RSpec is a good default, it is limited in the amount of methods it actually is...
Der Begriff systemd wird immer umfassender da es sich nicht mehr (wie ursprünglich) nur um ein init Systemd handelt, sondern...
Unter Linux gibt es mehrere Dateisysteme. Es ist gut einen Überblick zu haben welche existieren und wie man die Dateisysteme...
There is a way to use multiple databases in Rails. You may have asked yourself how you're able to...
You can use Unpoly's up.on with a named listener function and immediately unbind this event listener with { once: true...
ruby-warning adds custom processing for warnings, including the ability to ignore specific warning messages, ignore warnings in specific files/directories...
Due to the way we setup Jasmine tests in our projects, you may run into various errors when Jasmine boots...
Redis.current will be removed without replacement in redis-rb 5.0. Version 4.6.0 adds deprecation warnings for Redis.current and Redis.current=: `Redis.current...
While we are used to run our JavaScript tests on a test page within our Browser, it's also possible...
I recently was in a weird situation where my (Jest/CLI) tests were referencing a function that was no longer part...
RSpec's let allows you to super into "outside" definitions, in parent contexts. Example: describe '#save' do subject { described_class.new(attributes...
To ensure a consistent code style for JavaScript code, we use ESLint. The workflow is similar to integrating rubocop...
This are the steps I needed to do to add esbuild to an application that used the vanilla rails asset...