In the Gitlab settings the flag Auto-cancel redundant pipelines is enabled by default. This auto-cancels jobs that have...
Getting CSS (and JS) live reloading to work in a esbuild / Rails project is a bit of a hassle, but...
tl;dr You can use ordered to ensure that messages are received in a specific order. Example expect(ClassA).to...
When you find similar groups of expect calls in your tests, you can improve readability by extracting the group into...
View specs are a powerful tool to test several rendering paths by their cases instead of using a more costing...
Note Don't use reruns as a mean to work around flaky tests. You should always try to fix those...
Both knapsack and parallel_tests have the option to split groups by historic execution time. The required logs for this...
For my computer science bachelor's thesis I programmed and evaluated a CLI Test Case Prioritization (TCP) tool for makandra...
Rails offers several methods to manage three types of different cookies along with a session storage for cookies. These...
As we are slowly switching from Cucumber scenarios to RSpec feature specs, you might be tempted to write assertions like...
Debugging your integration tests, that run a headless Chrome inside a docker image, is tricky. In many cases you can...
Every Rails response has a default ETag header. In theory this would enable caching for multiple requests to the same...
Rails includes milliseconds in Time / DateTime objects when rendering them as JSON: JSON.parse(User.last.to_json)['created_at'] #=> "2001-01-01...
Timecop is a great gem to set the current time in tests. However, it is easy to introduce flakyness to...
In a Jasmine spec you want to spy on a function that is imported by the code under test. This...
In esbuild, you usually import other files using relative paths: import './some-related-module' import `../../utils/some-utility-module` import `../../../css/some-css.sass` This is totally fine...
ActiveType::Object inherits from ActiveRecod::Base and is designed to behave like an ActiveRecord Object, just without the database...
One rule of thumb I try to follow in capybara tests is using capybara matchers and not plain rspec matchers...
When you build a JSON API you need to come up with a style to represent attributes, pagination, errors or...
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...
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...
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...