Presentation from November 2011 BizSparkSF Meetup entitled "Tools, Tools and More Tools!" http://www.bizsparksf.com/events/34653282/

1. Loopt
Heine Frifeldt <heine@loopt.com>
Server Team Manager
Tools used for testing
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2. Loopt - Connecting You with the Places You Go
2

3. Kiln for source control, wiki and bug tracking
3

4. DB Schema in Mercurial via
RedGate SQL Source Control
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5. Unit tests via Visual Studio 2010
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6. Continuous builds via Jenkins
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7. 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);
}
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8. Hard to test code that uses statics
public Configuration GetConfiguration()
{
string[] conf = File.ReadAllLines("Config.xml");
// parse contents and construct Configuration obj
…
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9. Constructors as like static methods
Keep them simple
public class User
{
public User(int userId)
{
DataProvider provider = new DataProvider();
var data = provider.GetUserInfo(userId);
…
}
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10. 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

11. Separate object graph from logic
Ie. remove new operators
public GrouponAdapter(ILooptWebClient webClient)
{
_webClient = webClient;
}
public Deal[] GetGrouponDeals()
{
// Use _webClient to retrieve URL
…
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12. 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

13. Root of application will have logic to
construct object graphs
public CoreService(
IDealManager dealManager,
IUserManager userManager,
…
public DealManager(
IGrouponAdapter grouponAdapter,
IDataProvider dataProvider,
IPoiController poiController)
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14. Use “Ninject” to construct object graph
…
_kernel.Get<GrouponAdapter>();
…
14

15. Use “Ninject” to construct object graph
…
Bind<ILooptWebClient>().To<LooptWebClient>();
…
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16. “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);
…
}
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17. Manage packages via NuGet
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18. Queries into log files via Splunk
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19. Key benchmarks on TV screen via Gecko Board
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20. Tool Resources
• Source Control – 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 – Jenkins
• http://jenkins-ci.org
• Dependency Injection / Testable code
• http://misko.hevery.com/2008/11/11/clean-code-talks-dependency-injection
• Dependency Injection Framework – Ninject
• http://ninject.org
• Mock Framework – Moq
• http://code.google.com/p/moq
• Library extension for Visual Studio – Nuget
• http://nuget.org
• Log file Index and Parser – Splunk
• http://www.splunk.com
• Engineering dashboard – Gecko board
• http://www.geckoboard.com
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