Download - SharePoint 2010 Patterns & Practices

SharePoint 2010 Patterns & Practices

Serge Lucahttp://redwood.beKarine Boschhttp://karinebosch.wordpress.com

Audience

• Audience : SharePoint developers & architects• Level : 300

Topics

• Introduction to SharePoint Patterns and Practices Guidance (SPG)• Main Patterns covered by the SPG• Reusable libraries• Application Lifecycle Management for SharePoint 2010• Unit testing with Pex & Moles• Conclusions

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Topics

• Introduction to SharePoint Patterns and Practices Guidance (SPG)• Patterns covered by the SPG• Reusable libraries• Application Lifecycle Management for SharePoint 2010• Unit testing with Pex & Moles • Conclusions

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Introduction to SharePoint 2010 Patterns and Practices Guidance (SPG)

• Team for Microsoft and others (MDSN & CodePlex)• Provides:• Guidance & documentation• Patterns & reference implementations• Reusable Libraries• Discussions lists• Hands –on Labs

(Coding)Challenges when creating enterprise applications

• Testability • Can you isolate your classes

• Flexibility• Can you update or replace code without recompiling

• Configuration• How do you manage configuration settings ? Scalability ?

• Logging and Exception handling• How do you log ? Consistent across the team

• Maintainability• How can you maintain code that is always evolving

• Can your code run in the Cloud? (Office 365 & the Sandbox)• Without Full trust proxy

Topics


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Patterns covered by the SPG

• Mains patterns illustrated (with reference applications in the SPG)• Service Locator pattern• MVP pattern (Model View Presenter)• Repository pattern• MVVM pattern (Model View View Model)

The Service Locator Pattern

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Class A

Service A

Service B

Class A

Service A

Service B

Locator

Uses

Uses

Uses

Locates

Locates

DEMOThe Service Locator Pattern

MVP (Model View Presenter) pattern

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View Presenter

Model

DEMOThe MVP Pattern

The Repository pattern

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Client Business Logic

Your list repository

YourSharePointLists + other storages…

Business Entity

Business Entity? ?

Choosing a SharePoint Data Access Technology

LINQ

Farm Site List Data External Lists

Data Platform

Client-side

Server-side

Strongly-typed

Weakly-typed

Strongly-typed

Weakly-typedServer OM

Client OM

REST APIs

New in 2010

Improved

DEMOThe Repository Pattern

Linq To SharePoint DSL extension

• To automatically generate a Repository, you can tryLinq To SharePoint DSL Extension from Olivier Carpentier (MCS France)

MVVM (Model View ViewModel) pattern

• Model : entities• View Model : bind model• Well adapted to RIA :

• Optimize benefits of Silverlight & WPF (statefull, 2 ways databinding)• Data changed->one or several views should be updated • Data stays in memory for longer in RIA->interesting to notify that data

changes

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ViewView Model

Model

UI EventsModel change Events

Property changedI Events

Update

ReadViewModel data

DEMOMVVM

Topics


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SPG Reusable libraries

• Service Locator• Settings Manager• SharePoint Logger

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Topics


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Application Lifecycle Management

• Collect and analyze business requirements• Establish the technical design• Develop the application in iterations• Deploy to test environment• Perform integration tests and performance test

• Deploy to user acceptance test environment• Perform functional tests

• Deploy to production• Manage bug fixes and change requests

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Manage Application Lifecycle Management with Team Foundation Server 2010

• Analyze business requirementsEnter use cases and split into work itemsEnter test scenarios and link to work items

• Develop the application in iterationsDevelop iteration and link to work itemsBranching/merging

• Test the applicationNightly buildsInnovation: Lab ManagementUnit Tests

• Write complete test suite or use parameterized tests• mock SharePoint objects

Integration testsPerformance tests

• Tools for Code Coverage and Code metrics 23

Application Lifecycle Management for SharePoint 2010

• Develop Features and Solutions• Feature dependencies• Solution dependencies• Feature versioning• Feature.xml changes• <VersionRange>• <AddContentTypeField>• <ApplyElementManifest>• <CustomAction>

• FeatureUpgrading event

Unit Testing SharePoint 2010

• What?• Isolate testable pieces of code • Determine whether it behaves exactly as you expect• Tedious to write• Large percentage of defects are identified during its use• Rerun after bug fixes can detect newly introduced bugs

• Problem with SharePoint: • Unit test should run isolated• SharePoint objects like SPSite need connection to SharePoint• A lot of SharePoint object classes are sealed types with non-

public constructors25

Unit Testing with Visual Studio 2010

• Visual Studio 2010 • Provide test project template for .NET Framework 4

applications

• SP1• Unit test projects that target the .NET Framework 3.5• Support for 64 bits Intellitrace for SharePoint 2010 • Unit Test Host for SharePoint 2010

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Topics


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Unit testing SharePoint 2010 using Pex and Moles

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• Microsoft Pex:• Visual Studio 2010 add-in Visual Studio add-in for testing .NET

applications• Parameterized test suites • High code coverage• Can be included in nightly builds because of command line

utility • Microsoft Moles:• Allows you to mock objects• Behaviors

Getting started with Pex and Moles…

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• Download• Using your MSDN Subscription• Microsoft Research site:

http://research.microsoft.com/en-us/projects/pex/downloads.aspx

• MSDN forum: http://social.msdn.microsoft.com/Forums/en/pex/threads

Peli de Halleux rocks !!!

• Install • Documentation, source code and binaries can be found• C:\Program Files\Microsoft Pex• C:\Program Files\Microsoft Moles

http://social.msdn.microsoft.com/Forums/en/pex/threads

Create Parameterized Unit Tests with Microsoft Pex

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• What is a parameterized unit test?• A unit test allowing parameters

• A parameterized unit test is organized in 3 sections:

• Arrange• Set up the unit under test

• Act• Exercise the unit under test,

capturing any resulting state• Assert• Verify the behavior through

assertions

DEMOUnit testing SharePoint 2010 with Microsoft Pex

Unit testing SharePoint 2010 using Microsoft Moles

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• Visual Studio 2010 add-in• Provides isolation using stubs • Can be used together with Microsoft Pex• Creates a mole for each SharePoint class

DEMOUnit testing SharePoint 2010 with Microsoft Pex and Moles

Behaved Types for SharePoint

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• Moles ask for a lot of coding

• Behaved types provide an in-memory model of SharePoint that can be used in the context of unit testing

• Provides a set of behaviors that mimic the behavior of that instance

• Provides a way to instantiate an instance of a type• Part of the Moles project: • behaviors.samples.zip• Microsoft.SharePoint.Behaviors.dll

• Extend behaved types using Moles

DEMOUnit testing SharePoint 2010 with Behaved Types

Conclusion

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• More layered approach in SharePoint development needed• Accustom yourself with the SPG• Focus on the main patterns• Include FeatureUpgrading event in your deployment procedure• Use Microsoft Pex to reduce the number of unit tests• Use Microsoft Moles to typeMock (your SharePoint OM…)• Integrate the Cloud in your governance plan

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