The vs sonar extension package.
        public void SetSite()
        {
            // Create the package
            var package = new VsSonarExtensionPackage() as IVsPackage;
            Assert.IsNotNull(package, "The object does not implement IVsPackage");

            // Unsite the package
            Assert.AreEqual(0, package.SetSite(null), "SetSite(null) did not return S_OK");
        }
 public void IsIVsPackage()
 {
     var package = new VsSonarExtensionPackage();
     Assert.IsNotNull(package, "The object does not implement IVsPackage");
 }