I am currently working on a project with a pluggable application (load plugins at runtime and execute them) that loads assemblies at runtime, using the Assembly.LoadFile() method. I wanted to test it using NUnit (feel free to read our 3 Ways to Run NUnit from Visual Studio post). Although, the code was functioning very well it always failed during the NUnit tests, always! It took me several days to understand what went wrong and I want to share you with my findings.

Like it or not, whoever wants to have a stable code, need to write unit tests. There are 2 main unit testing frameworks for .Net Environment: MBUnit and NUnit.  During this post, I am going to focus on NUnit and its integration with Visual Studio in particular.                               

Once we wrote our unit tests and compiled them, [...]