This is not an issue in newer versions of HAML (starting with 5.0.0), as the ugly-option was removed...
There are various ways to run external commands from within Ruby, but the most powerful ones are Open3.capture3 and Open3.popen3...
Occasionally, you have to talk to APIs via HTTPS that use a custom certificate or a misconfigured certificate chain (like...
Using VCR to record communication with remote APIs is a great way to stub requests in tests. However, you may...
Using the dialog command you can launch ASCII-art dialogs from your shell scripts. Check out man dialog for a...
The pages listed here contain tests and experiments about features, possibilities, browsers’ bugs concerning CSS. That is, over 200 experiments...
Line-height and vertical-align are simple CSS properties. So simple that most of us are convinced to fully understand...
If the application under test makes sound, you probably want to disable this during integration testing. You can use the...
We generally use multiple application servers (at least two) and you have to search on all of them if you...
If you have a replication error with MySQL and you know the "error" is okay (e.g. you've executed 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...
You may know the double asterisk operator from Ruby snippets like Dir['spec/**/*_spec.rb'] where it expands to an arbitrary...
Ruby's regular expressions can be represented differently. When serializing them, you probably want to use inspect instead of to...
In general, you should not put a block element inside an inline element. So don't do this: text
If you get an error like this for a puppet mount: $ > puppet agent --test Info: Retrieving pluginfacts Info: Retrieving plugin...
So you're getting this failure when running bundle install on an older project: Your Gemfile.lock is corrupt. The following...
This card tries to summarize by example the different uses of heredoc. In Ruby << vs. <<- vs. <<~ In Rails strip_heredoc...
The linked article states that CSS breakpoints should group "similar" screen sizes and thus be at: 600px "narrow"
TL;DR Debugging problems with javascript errors in cucumber tests is sometimes easier in the browser. Run the test, stop...
If your external displays not switching on or showing a weird behavior (for e.g. all displays getting the same configuration...
When running tests via parallel_tests, you may encounter an error: cannot load such file -- parallel_tests/gherkin/runtime_logger Error creating formatter...
When testing your command line application with Aruba, you might need to stub out other binaries you don't want...