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Ruby

Using the RSpec Around Hooks

RSpec gives you multiple hooks to facilitate setup and tear-down of your specs. Using an around hook gives you the ability to DRY up your spec_helper.

Ruby

Defining Immutable Record Types in Ruby with Hamsterdam

Hamsterdam is a Ruby gem that makes it fun and easy to define and use efficient immutable record types in Ruby, backed by Hamster's Hash class.

Ruby

Making Refs in Ruby Using Celluloid Actors

An example of using Celluloid Actors to provide a poor man's Ref (Clojure-like) around an immutable data structure in JRuby to protect shared state.

Ruby

Beware of Capybara Interacting with Hidden DOM Elements

Capybara-webkit was allowing us to interact with invisible or hidden DOM elements, and our tests had been suffering due to being allowed this leniency.

Ruby

Simple Passive Code Generation

Code generation isn't beyond any developer capable of writing the simplest script.

Ruby

RubyFlux – Statically Compile Ruby to Java

RubyFlux statically compiles Ruby into Java. It has awesome performance and runs everywhere Java does with no runtime dependencies, but it isn't done yet.

Ruby

Easier Debugging with capybara-screenshot

How I've used capybara-screenshot to work through some perplexing test failures.

Ruby

Convenient Trick for Tolerance-based Test Assertions Using #ish

Enabling the #ish syntax to ease the writing of automated Ruby system and integration tests that rely on fuzzy or tolerance-based assertions.

Ruby

Is Your Application Running with Ruby – Slow?

Ruby may not be compiled for optimal performance with RVM. I benchmarked Ruby, and compiled Ruby with optimization flags to improve performance.

Ruby

Collecting Metrics from Ruby Processes with Zabbix Trappers

How to set up Zabbix to collect various forms of information (from numerical metrics to arbitrary strings, to log data) via the Zabbix sender protocol.

Ruby

PiecePipe Examples: Map, Aggregation, & Group-By

PiecePipe allows you to focus on the flow of data without worrying about the iteration and glue code. Here's how to use it for map, aggregation, and group-by.

Ruby

How to Keep Font Awesome from Crashing capybara-webkit

If you're developing a Ruby on Rails application on OS X, you'll need this workaround to keep Font Awesome from crashing capybara-webkit.

Ruby

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