To test whether a hash includes an expected sub-hash: expect(user.attributes).to match(hash_including('name' => 'Bruce Wayne'))

At times, it might be unavoidable to have different CSS rules for Internet Explorer than for sane browsers. Using Sass...

Back when Steak was first released, Capybara didn’t have any of the nice RSpec helpers it does now. A...

The information in this card is only relevant for Rails 2.3-era apps. This note gives a quick introduction into...

Liquid Canvas is a JavaScript library which allows you to draw inside an HTML canvas element with an easy yet...

If you just upgraded to Bundler 10.0.10 you might get the following error when bringing up Rails: /usr/lib/ruby/1.9.1/psych.rb:148:in...

Note that you cannot currently use Ruby 1.9.2 with Rails 2 applications that use RSpec, so don't upgrade if...

PhantomJS is a minimalistic headless WebKit. It has fast and native support for various web standards: DOM handling, CSS selector...

Sometimes you can make your life easier by not allowing a record attribute to be changed after the record was...

ActiveRecord comes with a method touch which sets the updated_at timestamp to the current time. Unfortunately it also runs...

blueprint is DevStructure’s workhorse tool that looks inside popular package managers, finds changes you made to configuration files, and...

List of global variables available to a Ruby script.

Specify these gem versions in your Gemfile: gem 'cucumber', '~> 1.3.0' gem 'cucumber-rails', '= 0.3.2' # max version for Rails 2

I don't like those buttons inside the header area of a message that Thunderbird 3 put there. Though the...

Cucumber scenarios that are tagged with @javascript so they run with Selenium are very slow. You might not want to...

If you plan to insert an existing PDF into a new LaTeX document that you will compile to PDF, you...

The shell variable PS1 holds your bash prompt. You might want to change it to serve your needs best. Here...

Add deprecation warnings and their solution or link to available solutions. Global access to Rake DSL methods is deprecated. Please...

Type looking a little flabby? Overweight? Want to give it a kick in the pants? Take a look at some...

If in your application your users pass along params that result in filenames, like invoices/generated?number=123. This could be...

Pie sometimes does not properly redraw elements upon changes. This often happens when the change comes from somewhere further up...

JavaScript Garden is a growing collection of documentation about the most quirky parts of the JavaScript programming language. It gives...

The attached RSpec matcher exist_in_database checks if a given record still exists in the database and has not...