Unit-tests can't read from config files

Question

We have a setup where we use Visual Studio 2012 to run our nunit-based unit tests from our local dev environments.

However, we have observed the following pattern:

1. When running unit tests the first time after Visual Studio has been launched, the tests fail when reading from config-files.

2. When rerunning the failing unit tests they can read the values from config files just fine.

This is truly a little bit annoying so I was hoping for a bit of help here :-).

I looked at Problem in reading connection string from App.Config when using NUnit 2.5.2 , but since we run our unit tests directly in Visual Studio, there is no way for us to configure NUnit directly.

Answer 1

NUnit looks for the configuration file in the wrong position, and does not ifnd the config file. Look at

Assembly.GetExecutingAssembly().CodeBase 

and

ConfigurationManager.OpenMappedExeConfiguration(new ExeConfigurationFileMap { ExeConfigFilename = configFile }, ConfigurationUserLevel.None); 

to get the correct location.