Question

How would I determine the solution path from within my test code?

I’m trying to write tests for a plugin architecture. I have some fake classes that implement my plugin interface in a separate project within my solution. After these build, the dll is copied into a ‘plugins’ folder using a post-build event:

copy "$(TargetPath)" "$(SolutionDir)TestPlugins"

My test code looks for plugins in that location and loads plugin types into a collection for later use.

At the moment, I’m having to hard-code the ‘plugins’ folder path in my test, which is nasty.

Oh, and I’m using Visual Studio’s built-in test projects (rather than NUnit), in case that makes a difference.

Answer 1

The relative path works, but we need to track up from the excuting binary, which is buried away in a test project.

string solutionPath = Directory
    .GetParent(Assembly.GetExecutingAssembly().Location)
    .Parent.Parent.Parent.FullName;

string pluginPath = Path.Combine(solutionPath, "TestPlugins");

Needs the following

using System.IO;
using System.Reflection;

Not the most elegant solution, but it works.