If your rails application is unable to send mails, it might be useful to debug your settings using the rails...
When you have a large PG database, you may want to find out which tables are consuming the most disk...
Webpacker uses Babel and Webpack to transpile modern JavaScript down to EcmaScript 5. Depending on what browser a project needs...
CarrierWave comes with some RSpec matchers which will make testing more comfortable. Let's say you have an Uploader like...
Recent Bundler (1.16.1) started complaining about missing dependencies in the Gemfile. This is due to a stricter handling of specifications...
When you need test images, instead of using services like lorempixel or placehold.it you may generate test images yourself.
If the argument list is the same every time: expect(object).to receive(:foo).with('argument').and_return('response 1...
You might have some trouble running a Rails LTS 2 app with MySQL 5.7. If you don't want to...
MySQL and MariaDB have an SQL mode setting which changes how MySQL behaves. The SQL mode value is comprised of...
Rails offers a way to prepend (or append) view paths for the current request. This way, you can make the...
We often use the Then console step from spreewald in combination with geordi vnc from geordi to debug tests within...
In Spreewald 1.10.4+, nested patiently blocks are now patient. Here is an example: patiently do outer_code patiently do
Use bundler > 1.15 to fix Gem::LOADED_SPECS_MUTEX (NameError). Given the following project: ruby -v ruby 1.8.7
Here is how to use Chromedriver without libraries like selenium-webdriver. This can be useful for debugging. The following example...
When flagging a spec that will be implemented later as pending, include a failing spec body or RSpec 3 will...
When a Rails controller action should handle both HTML and JSON responses, do not use request.xhr? to decide that. Use...
I recently had fun with replacing a custom video plattform ("mycustomtv") in one of our applications. I learned a lot...
Generating a project README Finally: Support for modelling associations between models in your application model! Example: # lib/katapult/application_model.rb
Understanding your type of cronjob Some cronjobs must only run on a single server. E.g. when you run nightly batch...
When you have a pending Cucumber step (or feature) that also uses an existing VCR cassette, your pending test may...
Katapult 0.3.0 brings Rails 5 and Ruby 2.5 support with a new design, plus a ton of smaller features, fixes...
Enumerable#all? returns true for an empty collection. This totally makes sense but you have to think about it when...
This cucumber step is useful for testing an image (looking at the src of the image). Then(/^I should see...
ActiveSupport::Dependencies takes care of auto-loading any classes in development. This is usually useful, but when you run into...