When you don't only have a favicon.ico in your project but also PNGs of different sizes and backgrounds, you should test if all those files are actually reachable.

Here are a few selectors to get you started:

    'link[rel~="icon"]' # regular ones, matches "shortcut icon" and "icon"
    'link[rel="apple-touch-icon"]' # iOS
    'meta[content][name="msapplication-TileImage"]' # IE11
    'meta[content][name^="msapplication-square"]' # IE11

A s...

Spreewald 1.1.0 drops the be_true and be_false matchers in order to be RSpec 3 and Ruby 2 compatible. For backward compatibility, these matchers are replaced with == true and == false.

Note the slightly more changed semantics of the update.

When making cross-domain AJAX requests with jQuery (using CORS or xdomain or similar), you will run into issues with HTTP headers:

• jQuery will not set the X-Requested-With header. On your server, requests will not look like AJAX requests (request.xhr? will be false).
• jquery-ujs will not set CSRF headers.

This is by design and improves secu...

Code snippet tested with Rails 2.3

  def index
    # ...
    if request.xhr?
      html = render_to_string(:partial => "list", :layout => false)
      respond_to do |format|
        format.html { render :text => html }
        format.json { render :json => {:html => html, ... } }
      end
    end
  end

Note: Perhaps you ran into ActionView::MissingTemplate error and this card might help. If you call render_to_string within the format.json block, Rails will only look for an index.json template, but not for an `index.erb...

This actually works:

class Klass

  def initialize
    `hi world`
  end

  def `(message)
    puts "Called with backticks: #{message}"
  end
  
end

Klass.new # Prints "Called with backticks: hi world"

Hat tip to @jcoglan.

Spreewald now has a spreewald binary that lists all available steps, optionally filtering them. Example:

$> spreewald

# All Spreewald steps
Given I am on ...
... long list

$> spreewald check

# All Spreewald steps containing 'check'
When I check "..."
When I uncheck "..."
Then the "..." checkbox( within ...)? should be checked
Then the "..." checkbox( within ...)? should not be checked
Then the radio button "..." should( not)? be (checked|selected)

The adjust-hue function of Sass allows you to change a color's hue, but only relative to its current hue.

adjust-hue(#ffff00, 120)
// => #00ffff
adjust-hue(#444400, 120)
// => #004444

As you can see, we moved our yellow by 120° to cyan. \
But what if you want to move any color to a hue of 120° which is a nice shiny green?

Take this function:

@function set-hue($color, $target-hue)
  $current-hue: hue($color)
  $degree...

If your requests blow up in Ruby or CURL, the server you're connecting to might only support requests with older SSL/TLS versions.

You might get an error like: OpenSSL::SSL::SSLError: SSL_connect SYSCALL returned=5 errno=0 state=unknown state

SSL Server Test

This SSL Server Test can help finding out which SSL/TLS versions the server can handle.

Ruby

In Ruby, you can teach Net::HTTP to use a specific SSL/TLS version.

uri = URI.parse(url)

ssl_options = {
   use_ssl: true,
   ssl_version...

So you're getting an error message like the following, although your Gemfile lists shoulda-matchers and it has always worked:

NoMethodError:
  undefined method `allow_value' for #<RSpec::ExampleGroups::Person::Age:0x007feb239fa6a8>

This is due to Rails 4.1 (specifically, Spring) revealing a weak point of shoulda-matchers -- jonleighton explains why.

Solution

The solution is to follow [the gem's installation guide](https://github.com/thoughtbot/sh...

If you have some file or directory that should trigger a Spring reboot, tell Spring e.g. in config/spring.rb:

Spring.watch 'file.rb'
Spring.watch 'lib/templates'

However, Spring will silently drop paths that do not exist at the time calling #watch. Unless you restart Spring (thereby reloading the watch commands), it won't even watch them once they do exist.

Make sure the watchable paths exist before telling Spring to watch, e.g. with

FileUtils.touch 'file.rb'
FileUtils.mkdir_p 'lib/templates'
Spring.wa...

See screenshot here.

This is great news because network throttling is very painful in Linux.

The features are already in Chrome Canary, so expect them to come to your Chrome sources soon.