gregoryyoung

Value objects are an important concept in DDD. This kata is made both to learn value objects and to learn better ways of testing.

Write a probability value object. It should contain the following methods:
   Probability CombinedWith(Probability)
   Probability InverseOf()
   Probability Either(Probability)

if you forget your probability math:
   Either:P(A) + P(B) - P(A)P(B)
   CombinedWith: P(A)P(B)

joliver

public sealed class NServiceBusCommitDispatcher : IPublishMessages
{
	private const string AggregateIdKey = "AggregateId";
	private const string CommitVersionKey = "CommitVersion";
	private const string EventVersionKey = "EventVersion";
	private const string BusPrefixKey = "Bus.";
	private readonly IBus bus;

	public NServiceBusCommitDispatcher(IBus bus)
	{

gregoryyoung

Greg's Stop Loss Kata

Testing is very hard when time is involved ...

A trailing stop loss is a term used in financial trading. For a very in depth explanation you can read here http://www.investopedia.com/articles/trading/03/080603.asp and http://en.wikipedia.org/wiki/Order_(exchange)#Stop_orders

However we do not need a huge amount of background in order to do the kata as we are going to limit the problem a bit.

The general idea is that when you buy into a stock at a price say $10. You want it to automatically get sold if the stock goes below $9 (-$1). If we use the term "trailing" that means that id the price goes up to $11 then the sell point becomes $10.

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

gregoryyoung

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading;
using EventStore.ClientAPI;

namespace marketdata
{

Buildstarted

namespace BST
{
    using System;
    using System.Collections;

    public class BloomFilter<T>
    {
        private readonly int _size;

        //how many times to run the hash method

stevenkuhn

#
# Assumptions
#
# 1. If you have a Octopus release deployed, say 1.0.0.73, there is a git
#    tag set for that commit in GitHub that is "v1.0.0.73".
#
# 2. You have TeamCity label each successful build in GitHub with the format
#    "v{build number}. Sidenote: it appears that TeamCity only labels the
#    default branch, but not feature branches.
#

jbtule

@echo off
IF %1.==. GOTO WrongArgs
..\.nuget\nuget.exe pack ..\%1\%1.csproj -Build -Properties Configuration=Release -Symbols

GOTO:EOF
:WrongArgs
ECHO "create-nuget <projectname>"

Danik

; Autohotkey Capslock Remapping Script 
; Danik
; More info at http://danikgames.com/blog/?p=714
; danikgames.com
; 
; Functionality:
; - Deactivates capslock for normal (accidental) use.
; - Hold Capslock and drag anywhere in a window to move it (not just the title bar).
; - Access the following functions when pressing Capslock: 
;     Cursor keys           - J, K, L, I

yreynhout

public class ChildRepository {
  public Optional<Child> GetOptional(string identifier) {
    //Very simple parent-child example
    
    var childStream =_streamReader.Read(identifier);
    var parentId = ((SomeInitialEvent)stream.Events[0]).ParentId;
    var parentStream = _streamReader.Read(parentId);
    
    var root = new Child();
    root.Initialize(parentStream.Events);