Mike Slinn mslinn

CvRDTs are as general as they can be

What are you talking about, and why should I care?

Now that we live in the Big Data, Web 3.14159 era, lots of people want to build databases that are too big to fit on a single machine. But there's a problem in the form of the CAP theorem, which states that if your network ever partitions (a machine goes down, or part of the network loses its connection to the rest) then you can keep consistency (all machines return the same answer to

Testing Your Jekyll Site, The Ruby Way

Here at eSpark Learning, we use Jekyll to host our marketing site, https://www.esparklearning.com. Within eSpark Engineering, we love automated testing - most of our codebases require a passing test suite for all changes. As we add more javascript to our Jekyll site, we wanted to add a test framework that would give us real world tests - testing that the HTML was valid was no longer enough.

Acceptance Testing with RSpec, Capybara, and Selenium

To create real world acceptance tests for our site, we used a few technologies we were familiar with:

RSpec - Behaviour Driven Development for Ruby
Capybara - Test web applications by simulating how a real user would interact with your app
Selenium - Selenium automates browsers

	import scala.sys.process._
	import java.io._

	// Run a Process, return the output as a String
	Process("echo foo") !!

	// Run a Process, pipe in some input, and return the output as a String
	Process("cat") #< (new ByteArrayInputStream("foobar".getBytes("UTF-8"))) !!

	// Run a Process, pipe in some input, and pipe the output to a Array[Byte]

	package com.promindis.game.snake.stm

	import akka.actor.{ActorRef, Actor}
	import java.awt.{Dimension, Graphics2D}
	import java.awt.event.{ActionEvent, ActionListener}
	import swing._
	import swing.Dialog._
	import swing.event.Key._
	import swing.event.KeyPressed

	#! /usr/bin/env bash

	control_c() {
	if $cygwin; then rm "$USERPROFILE"/play.boot.properties; fi
	exit 1
	}

	case "`uname`" in
	CYGWIN*) cygwin=true;;
	esac

	#!/bin/bash
	function help {
	echo "Searches path for .class files compiled from specified Scala or Java class"
	echo "Usage: $(basename $0) fileName [className]"
	echo " -c classpath; if not specified then all classes under target/scala-* are searched"
	echo " -e Exact match required for fileName, or className if specified"
	echo " -s Show javap decompilation output"
	exit -1
	}

	--- Pandoc Lua filter to include other Markdown files
	---
	--- Usage: Use a special code block with class `include` to
	--- include Markdown files. Each code line is treated as the
	--- filename of a Markdown file, parsed as Markdown, and
	--- included. Metadata from include files is discarded.
	---
	--- Example:
	---
	--- ``` {.include}