The pages listed here contain tests and experiments about features, possibilities, browsers’ bugs concerning CSS. That is, over 200 experiments...
There seems to be a nasty bug in Chrome 56 when testing with Selenium and Capybara: Slashes are not written...
To create a 10 GB file: fallocate -l 10G huge_file.dat
If the application under test makes sound, you probably want to disable this during integration testing. You can use the...
This error message may occur when rspec gets loaded by rake, e.g. when you migrate the test database. NoMethodError: undefined...
Reminder of what you can do with Geordi. Note: If you alias Geordi to something short like g, running commands...
Sometimes huge refactorings or refactoring of core concepts of your application are necessary for being able to meet new requirements...
A comprehensive introduction to sending HTML emails. Intro: HTML email: Two words that, when combined, brings tears to a developer...
If you get an error like this for a puppet mount: $ > puppet agent --test Info: Retrieving pluginfacts Info: Retrieving plugin...
TL;DR Debugging problems with javascript errors in cucumber tests is sometimes easier in the browser. Run the test, stop...
xargs is a powerful bash tool that can take input from $STDIN and pass it to a given command. I.e...
When running tests via parallel_tests, you may encounter an error: cannot load such file -- parallel_tests/gherkin/runtime_logger Error creating formatter...
There is no CSS selector for matching elements that contains a given string ¹. Luckily, Capybara offers the :text option to...
When testing your command line application with Aruba, you might need to stub out other binaries you don't want...
When you're writing specs for ActiveRecord models that use memoization, a simple #reload will not do: it 'updates on...
We used zeroclipboard.js in some of our projects but now we switched to clipboard.js because it does not rely on...
We often use VCR to stub external APIs. Unfortunately VCR can have problems matching requests to recorded cassettes, and these...
We have released a new library Gemika to help test a gem against multiple versions of Ruby, gem dependencies and...
Same requests are recorded only once in vcr. Replaying a test fails, if you trigger the same request multiple times...
Similar to our snippet that runs all Cucumber features matching a given string, the following will run all modified or...
Improve geordi cucumber: Only attempt @solo run when the specified files contain the @solo tag, skip @solo run if any...
Capistrano is by default configured to exclude the gems of the groups development and test when deploying to the stages...
You want Spring for super-fast binstubs like bin/rails or bin/rspec which avoid Rails boot time. You want parallel_tests...
Sometimes you want to test migrations with production or staging data. Dumping single tables makes sense if a complete dump...