Updating RhinoCommon/Grasshopper to v7 causes System.IO.FileNotFoundException

[clicky]

If I clone the project freshly and upgrade from the existing versions of GH/Rhino to the latest pre-release, The GHBox_Centroid_ReturnsGHPoint Test will return the following error:

System.IO.FileNotFoundException : Could not load file or assembly 'Grasshopper, Version=7.0.20168.13070, Culture=neutral, PublicKeyToken=dda4f5ec2cd80803' or one of its dependencies. The system cannot find the file specified. Stack Trace: XunitExampleTests.GHBox_Centroid_ReturnsGHPoint()

I've checked my local .nuget folder and this has the package in. I have no other issues with other projects using this package.

[clicky]

I have found in my code that I have had to explicitly add the Grasshopper Directory in the XunitTestInitFixture.cs file, this then loads perfectly.

public class XunitTestInitFixture : IDisposable
{
	static bool initialized = false;
	static string systemDir = null;
	static string systemDirOld = null;
	static string ghSystemDir = null;

	public XunitTestInitFixture()
	{
		////Check if the fixture is already initialised
		if (initialized)
		{
			throw new InvalidOperationException("AssemblyInitialize should only be called once");
		}
		initialized = true;

		// Make surte we are running the tests as 64x
		Assert.True(Environment.Is64BitProcess, "Tests must be run as x64");


		// Set path to rhino system directory
		string envPath = Environment.GetEnvironmentVariable("path");
		string programFiles = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles);
		systemDir = System.IO.Path.Combine(programFiles, "Rhino 7 WIP", "System");
		systemDirOld = System.IO.Path.Combine(programFiles, "Rhino WIP", "System");
		if (System.IO.Directory.Exists(systemDir) != true)
		{
			systemDir = systemDirOld;
		}

		ghSystemDir = System.IO.Path.Combine(programFiles, "Rhino 7 WIP", "Plug-ins", "Grasshopper");

		Assert.True(System.IO.Directory.Exists(systemDir), string.Format("Rhino system dir not found: {0}", systemDir));
		Assert.True(System.IO.Directory.Exists(systemDir), string.Format("Rhino system dir not found: {0}", systemDir));
		Assert.True(System.IO.Directory.Exists(ghSystemDir), string.Format("Grasshopper system dir not found: {0}", ghSystemDir));

		// Add rhino system directory to path (for RhinoLibrary.dll)
		Environment.SetEnvironmentVariable("path", envPath + ";" + systemDir + ";" + ghSystemDir);

		// Add hook for .Net assmbly resolve (for RhinoCommmon.dll)
		AppDomain.CurrentDomain.AssemblyResolve += ResolveRhinoCommon;

		// Start headless Rhino process
		LaunchInProcess(0, 0);
	}

	private static Assembly ResolveRhinoCommon(object sender, ResolveEventArgs args)
	{
		var name = args.Name;

		if (name.StartsWith("RhinoCommon"))
		{
			var path = System.IO.Path.Combine(systemDir, "RhinoCommon.dll");
			return Assembly.LoadFrom(path);
		}
		if (name.StartsWith("Grasshopper"))
		{
			var path = System.IO.Path.Combine(ghSystemDir, "Grasshopper.dll");
			return Assembly.LoadFrom(path);
		}

		return null;
	}

	public void Dispose()
	{
		//Cleaning up
		ExitInProcess();
		//initialized = false;
	}

	[DllImport("RhinoLibrary.dll")]
	internal static extern int LaunchInProcess(int reserved1, int reserved2);

	[DllImport("RhinoLibrary.dll")]
	internal static extern int ExitInProcess();

}

[tmakin]

@clicketyclackety Sorry, this repo has not had much attention recently! But I've just merged a PR that adds support for Rhino 7, so please check that out and let me know if you still have any issues.