Unable to get MsTest(Core) dependencies in VslangProject.Project class (Vsix extension project)

Hi,

I am working on Vsix project, Where there is one requirement to enable context menu on MsTest(core) project Right click.

But I am not able to get dependencies(reference)(In VslangProj.Project/ EnvDTE.Project class)due to this I am not able to enable menu on Project Right Click.Please suggest the best way.

Thanks