This document discusses how to build maintainable and testable custom SharePoint components. It presents different deployment structure options including: a single WSP that contains all functionality; separate WSPs for each functionality that share common libraries; and a framework WSP with shared and feature-specific WSPs. It also emphasizes the importance of unit testing, separation of concerns, and design patterns like inversion of control and dependency injection to create testable and maintainable code.

1. How to Build Maintainable and Testable Custom SharePoint
Components
Edin Kapić
#SPSSTHLM07
February 14th, 2015

2. Platinum
Gold
Lunch SharePint
Silver
Web

3. Beezy
Catalonian
SharePoint User Group
sug.cat
Jag frågar mig
är denna öl
SharePint-
kompatibel
@ekapic
www.edinkapic.com

7. Deployment structure
Solution structure
Source code management
Code structure
Unit testing SharePoint
Maintainable
Testable

10. Simpler Retraction of one WSP
removes shared libraries
from BIN/GAC
Only one version path for
components
Not granular enough
MySolution.wsp

11. Functionality can be
separately versioned and
managed
Retracting one
functionality doesn’t break
shared libraries
More complex
Limited reusability

12. MySolution.Specific1.wsp
MySolution.Common.wsp
MySolution.Specific2.wsp
Shared WSP + Feature WSPs

13. Common SharePoint code
can be versioned
separately
More control over code
reuse and management
over multiple solutions
Even more complex

14. MySolution1.Specific1.wsp
MySolution1.Common.wsp
MySolution1.Specific2.wsp
MyFramework.wsp
MySolution2.Specific1.wsp
MySolution2.Common.wsp
MySolution2.Specific2.wsp
Framework + Shared + Feature WSPs

16.  But

26.  Run away!!!

32.  •

33.  •
“The Truth”
Developer 1
Developer 2
Developer 3
Developer 1
Developer 2
Build Server
Corporate
Repository

39. Unit tests

41. Depends on abstractions
Separates concerns
Inversion of Control (IoC)
Dependency Injection (DI)
Repository pattern
Service Locator pattern
MVP/MVC

42. coordinating code
concrete repositories (the
ones that hit SharePoint or a
database)
CUT

47. 07