Question

In running my VS2008 unit integration tests against my DAL, I have found that the assembly is reading machine.config instead of the assembly’s app.config.

Here’s the rundown on the call stack:

• Unit Test Project has method calling into a DataLayer Project
• MyDataLayer class inherits from a base class. Method is called GetStuff()
• Base class is using System.Configuration . All good.
• calling this property in code: ConfigurationManager.ConnectionStrings['MyConnStr'] actually returns null because it’s not found apparently.
• checking the MyDataLayer class, yep, MyConnStr is there.
• checking the collection ConnectionStrings, yes, it has one connection string. It’s the one in machine.config that’s over in C:\Windows\Microsoft.NET\Framework\v2.0.50727\Config\machine.config
• I am not sure why my DAL’s app.config is being superseded by the machine.config

Any help is appreciated!

Answer 1

Not sure if this applies to you, but you need to make sure the configuration string is in your Unit Test Project’s app.config, not your DataLayer project.