jovaneyck

    public interface IPrincipalInformationProvider
    {
        bool IsLoggedIn { get; }

        ...
    }
    
    public class ThreadBasedPrincipalInformationProvider : IPrincipalInformationProvider
    {
        public bool IsLoggedIn

jovaneyck

(define lorem
    "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
)

;; tests
;; (equal? (split (list 1 2 3) 0) (list () (list 1 2 3)) )
;; (equal? (split () 5) (list () ()) )
;; (equal? (split (list 1 2 3) 4) (list (list 1 2 3) ()) )

jovaneyck

let isValid input = 
    input 
    |> parse
    /*smelly and doesn't scale, what's the F# way of combining predicates?*/
    |> (fun p -> predicate1 p && predicate2 p) 

jovaneyck

var appAPI = (function () {
    var tabListener;
    var backGroundListener;
    var storedValue = null;

    return {

        ready: function (callback) { callback(); },
        message: {
            addListener: function (listener) {

jovaneyck

let add : (int option -> int option -> int option) =
        (fun fst snd -> 
            fst 
            |> Option.bind
                (fun f -> 
                    snd 
                    |> Option.bind (fun s -> Some (f + s))))

test <@ add (Some 1) (Some 2) = Some 3 @>
test <@ add None (Some 2) = None @>

jovaneyck

BEGIN TRAN

DELETE FROM [oltp.cq.logging.2.10.0.x].dbo.AUD_EXC
DELETE FROM [oltp.cq.logging.2.10.0.x].dbo.AUD_ACT

USE [oltp.cq.stage.2.10.0.x]

DELETE FROM QCD_CYC
DELETE FROM QCD_EVT
DELETE FROM QUA_CYC

jovaneyck

#r @"C:\nuget_local\Unquote.3.1.1\lib\net45\Unquote.dll"
open Swensen.Unquote

type Vote = {voter : string; first : string; second : string; third : string}

let lines = 
    System.IO.File.ReadAllLines(@"C:\Users\ext_jvy\Desktop\hubspot-form-submissions-ae-hackathon-2017-public-voting-2017-04-28 (1).csv")
    |> List.ofArray
    |> List.skip 1

jovaneyck

internal static class BundleExtensions
{
    public static Bundle WithLastModifiedToken(this Bundle sb)
    {
        sb.Transforms.Add(new LastModifiedBundleTransform());
        return sb;
    }
    public class LastModifiedBundleTransform : IBundleTransform
    {
        public void Process(BundleContext context, BundleResponse response)

jovaneyck

type Direction = North | East |South | West
type Location = { x : int; y : int}
type Rover = { Location : Location; Direction : Direction}

let createRover location direction = {Location = location; Direction = direction}

type Command =
    | Forward
    | Backward
    | TurnLeft

jovaneyck

Points to discuss

• What is a "unit test"? What is an "integration test"? "integrated test"? "microtest"?
  • Michael Feathers on "what is a unit test"
• WHY unit test?
  • ROI vs other automation (writing & MAINTAINING)
  • Synergy between testability and design
  • internal quality
• Agile, iterative, refactoring