Code & Quality Check

For SharePoint Code quality one should always use these two tools :

SharePoint Dispose Checker Tool

SPDisposeCheck is a tool to help you to check your assemblies that use the SharePoint API so that you can build better code. It provides assistance in correctly disposing of certain SharePoint objects to help you follow published best practice. This tool may not show all memory leaks in your code. Further investigation is advised if you continue to experience issues.

http://code.msdn.microsoft.com/SPDisposeCheck

FxCop

FxCop is an application that analyzes managed code assemblies (code that targets the .NET Framework common language runtime) and reports information about the assemblies, such as possible design, localization, performance, and security improvements. Many of the issues concern violations of the programming and design rules set forth in the Design Guidelines, which are the Microsoft guidelines for writing robust and easily maintainable code by using the .NET Framework.

http://code.msdn.microsoft.com/codeanalysis/Release/ProjectReleases.aspx?ReleaseId=553