Death to the DAO and How to Test LINQ

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Death to the DAO and How to Test LINQ (rapidapplicationdevelopment.blogspot.com)

submitted by Lear(1195) 1 year, 10 months ago

Occasionally I hear complaints that LINQ is hard to unit test. These complaints aren’t about LINQ to objects, mind you, they’re specific to the complexities of the flavors of LINQ that turn C# code into something else like SQL or CAML using expression trees. The most common technologies are LINQ to SQL, the Entity Framework, or in my case at the moment LINQ to SharePoint. In this post I’m going to propose a technique that makes testing LINQ not just easy, but downright elegant – assuming you’re ok with extension methods – lots of extension methods. And assuming you’re ready to kill your Data Access Objects (DAO) tier.

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