Dennis Ideler dideler

In many production systems you'll want to have one module capable of talking to many potential implementations of a collaborator module (e.g a in memory cache, a redis-based cache etc). While testing it's useful to control which module the module under test is talking to.

Here are the approaches I can see. The two points that seem to divide the approaches are their tool-ability (dialyzer) and their ability to handle stateful implementations (which need a pid).

Passing modules

Modules are first class, so you can pass them in. Used in EEx, where passed module must implement a behaviour.

rage-quit support for bash

HOW TO INSTALL

Put flip somewhere in your $PATH and chmod a+x it.

Copy fuck into ~/.bashrc.

Getting Started with TDD

Project Setup

Generate a new Rails project. Skip unit tests and bundle install.

rails new -T -B tdd

	# Original Rails controller and action
	class EmployeesController < ApplicationController
	def create
	@employee = Employee.new(employee_params)

	if @employee.save
	redirect_to @employee, notice: "Employee #{@employee.name} created"
	else
	render :new
	end

	#!/usr/bin/env casperjs

	/*
	* Takes provided URL passed as argument and make screenshots of this page with several viewport sizes.
	* These viewport sizes are arbitrary, taken from iPhone & iPad specs, modify the array as needed
	*
	* Usage:
	* $ casperjs screenshots.js example.com
	*/

	<div id=":vz" class="ii gt m145ad5537035869c adP adO"><div id=":vy" class="a3s" style="overflow: hidden;"><div><div class="adM">
	</div><div bgcolor="#fafafa"><div class="adM">
	</div><table border="0" cellspacing="0" cellpadding="0" width="100%" bgcolor="#fafafa"><tbody><tr><td align="left" valign="middle" height="40" bgcolor="#e4eff7" style="color:#787878;font-family:Arial;padding:5px 30px 5px 30px">
	<div style="font-size:14px;letter-spacing:1px;font-weight:bold;color:#787878"><a href="https://eventing.coursera.org/redirect/K94Ky5AdlhxW-FQnYSZZtJPNSf_mKt0SlLY3BJoPtzGpi9uZUEt5y2t4OE_LPJ_BCElO-LwczCh98rRU3vjkFA.KYet1zUYKuWJE3yZ5nv7dQ.ew5zeZYivcmzO41tPxqLBchVIzZJsUl86CrpCEZL-BqfouGmyTiOsoHV6zgPWIft-5F1i2Ug42EeeOJS1yfZ-yZdoMF_Oc5dO2aP7vtdCqLHEQLkq4-vHwBL8nGe-T7Lypqw5CtuKyoVwWGNHb0s-n1mM3r5RfTIVyrGJYV4m8NKQI-m4K18qD0fszw5u0_OxR_24DUqzkXqfMfOD9_MwhEkfow89tPO2CYoYdWths3E9TQ3gK_KdRjJRm8AfgKVyacIGbanQ3tUENlDUy_E7E9YMuAmYCXUHe02U2p5FlEQW7LnDqTtG3MYC3uVCOW46Bs3_oIFzlryBTrariC7y1s3KXDtwE83vBW9t65D62

	<div>
	<!--[if mso]>
	<v:roundrect xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word" href="http://www.EXAMPLE.com/" style="height:40px;v-text-anchor:middle;width:300px;" arcsize="10%" stroke="f" fillcolor="#d62828">
	<w:anchorlock/>
	<center style="color:#ffffff;font-family:sans-serif;font-size:16px;font-weight:bold;">
	Button Text Here!
	</center>
	</v:roundrect>
	<![endif]-->
	<![if !mso]>

	class GroupersController < ApplicationController::Base
	def create
	@grouper = Grouper.new(leader: current_member)

	if @grouper.save
	ConfirmedGrouperEmails.new(@grouper).deliver
	AssignBarForGrouper.enqueue(@grouper.id)

	redirect_to home_path
	else

	#!/usr/bin/env python
	# init post for jekyll

	import os
	import re
	import datetime

	text_tmpl = """---
	layout: post
	title: %(title)s

	CREATE TEXT SEARCH CONFIGURATION fr ( COPY = french );
	ALTER TEXT SEARCH CONFIGURATION fr ALTER MAPPING
	FOR hword, hword_part, word WITH unaccent, french_stem;

	CREATE TEXT SEARCH CONFIGURATION en ( COPY = english );
	ALTER TEXT SEARCH CONFIGURATION en ALTER MAPPING
	FOR hword, hword_part, word WITH unaccent, english_stem;

	CREATE TEXT SEARCH CONFIGURATION de ( COPY = german );
	ALTER TEXT SEARCH CONFIGURATION de ALTER MAPPING