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Loopt

Heine Frifeldt <heine@loopt.com>
Server Team Manager

Tools used for testing

1

Loopt - Connecting You with the Places You Go

2

Kiln for source control, wiki and bug tracking

3

DB Schema in Mercurial via
RedGate SQL Source Control

4

Unit tests via Visual Studio 2010

5

Continuous builds via Jenkins

6

Nightly Functional Tests via custom attribute

[TestMethod, ExecuteNightly]
public void FacebookSearch()
{
var adapter = new FacebookAdapter();
var places = adapter.Search(coords, 10000);
Assert.IsTrue(places.Count() > 0);
}

7

Hard to test code that uses statics

public Configuration GetConfiguration()
{
string[] conf = File.ReadAllLines("Config.xml");

// parse contents and construct Configuration obj
��

8

Constructors as like static methods
Keep them simple

public class User
{
public User(int userId)
{
DataProvider provider = new DataProvider();
var data = provider.GetUserInfo(userId);
��
}

9

Hard to test code that has object
initialization inside business logic

public Deal[] GetGrouponDeals()
{
WebClient client = new WebClient();

// Logic to retrieve and parse the response
��
}

10

Separate object graph from logic
Ie. remove new operators

public GrouponAdapter(ILooptWebClient webClient)
{
_webClient = webClient;
}

public Deal[] GetGrouponDeals()
{
// Use _webClient to retrieve URL
��

11

Dependency injection ? Test able code

[TestMethod]
public void VerifyDeals()
{
var testClient = new TestWebClient();
var groupon = new GrouponAdapter(testClient);

// Now you control the URL response
��
}

12

Root of application will have logic to
construct object graphs

public CoreService(
IDealManager dealManager,
IUserManager userManager,
��

public DealManager(
IGrouponAdapter grouponAdapter,
IDataProvider dataProvider,
IPoiController poiController)

13

Use ��Ninject�� to construct object graph

��
_kernel.Get<GrouponAdapter>();
��

14

Use ��Ninject�� to construct object graph

��
Bind<ILooptWebClient>().To<LooptWebClient>();
��

15

��Moq�� as object mock framework

[TestMethod]
public void VerifyDeals()
{
var testClient = new Mock<ILooptWebClient>();
testClient.
Setup(c => c.GetUrl(It.IsAny<Uri>())).
Returns(Resources.MyResponse);

var groupon = new GrouponAdapter(testClient);

��
}

16

Manage packages via NuGet

17

Queries into log files via Splunk

18

Key benchmarks on TV screen via Gecko Board

19

Tool Resources
? Source Control �C Mercurial via Kiln
? http://www.fogcreek.com/kiln/
? SQL Tools - Redgate SQL Source Control / SQL Compare
? http://www.red-gate.com/products/sql-development/
? Automated Build Environment �C Jenkins
? http://jenkins-ci.org
? Dependency Injection / Testable code
? http://misko.hevery.com/2008/11/11/clean-code-talks-dependency-injection
? Dependency Injection Framework �C Ninject
? http://ninject.org
? Mock Framework �C Moq
? http://code.google.com/p/moq
? Library extension for Visual Studio �C Nuget
? http://nuget.org
? Log file Index and Parser �C Splunk
? http://www.splunk.com
? Engineering dashboard �C Gecko board
? http://www.geckoboard.com

20

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BizSpark SF Lightning Talk: "Automated Testing (Unit, Integration and Systems)" by Heine Frifeldt

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BizSpark SF Lightning Talk: "Automated Testing (Unit, Integration and Systems)" by Heine Frifeldt

Editor's Notes