eoinkelly

<?php
/* Retrieve information about WordPress images without the chaos.

You have to remember a bunch of different functions to get info about images in the
Media Library so I collected their functionality under one wrapper with a (hopefully)
nice interface. This function tries to avoid fetching unnecessary info whenever it can.

I have limited the granularity of the API to not allow fetching different info
about each available image size. I think that would make using this function
more fiddly without any great benefit.

eoinkelly

<?php 
/*
* This is a convenient wrapper that allows you to retrieve the list of posts
* mentioned in a Menu. The posts are returned in the order they are in the menu.

* Args: An array containing these keys:

  * theme_location: (required) the name of the theme location you have defined
  * for the menu with register_nav_menu()

eoinkelly

Test Setup

• All tests run on same machine: Dell Studio XPS 16 Laptop running Windows 7 x64
• Same codebase except jRuby does use different sqlite adaptor (you cannot use the standard one with jRuby)
• Code has 4 unit tests (incl. 21 assertions) that all pass.
• Code is the example app from Agile Web Development with Rails

Goals

• I wanted to find the fastest way to run my rails tests on my laptop.

eoinkelly

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

eoinkelly

Usage

1. Add this to your Rails app's Gemfile:

   gem 'requirejs-rails'
   

   and then run bundle install on the command line.

eoinkelly

# Want to pass in a hash or instance of object. Was hoping to avoid is_a? or creating a new object but
# think that can only be done with is_a? or overriding new. Also, I might be missing the point as 
# avoiding is_a? should mean I am using Duck Typing but if I'm using Duck Typing then I shouldn't be 
# checking object equality anyway. See RSpec test for details.

class MyClass
  attr_accessor :name
  attr_accessor :description

  def initialize(args = {})

eoinkelly

Iterating over a collection with access to the index in Ember

// within your view/component
collectionWithIndices: function () {
  return this.get('collection').map(function (item, idx) {
    item.index = String(idx); // we need 0 to be "0" or Handlebars will consider it falsy
    return item;
  });
}.property('collection.@each'),

eoinkelly

// TODO:
// * work with all browser prefixes for event names
// * make error message more helpful

it('tests that a CSS animation ran correctly', function (done) { // <-- notice the done param

  // Visit whatever route we are going to test
  visit('/unique_testing_route')
  .then(function () {

eoinkelly

// # How to use this:
//
// 1. Open the Ember Inspector on an Ember app (so Ember is loaded)
// 2. Hit the 'clear' button on the Promises tab to remove any promises from the app itself
// 3. Paste this code into the console and watch how the promises inspector displays it
// 4. Twiddle, Rinse & repeat
// 5. More info at 
//   * https://github.com/kriskowal/q/blob/v1/design/README.js (great for understanding promises)
//   * http://emberjs.com/api/classes/Ember.RSVP.Promise.html (Ember promise implementation specifics)

eoinkelly

/*
Usage:
 * Paste this into your dev tools console (or even better as a snippet)
 * It will parse the page and find all the things that create a new stacking context 
   and dump some info about them to the console. It will also outline them on the page.
   
 * This is pretty rough and probably misses heaps of bugs and edge cases. 
 */