System.Security.PermissionSet.SetPermission C# (CSharp) Method

        public IPermission SetPermission(IPermission perm) { return default(IPermission); }
        void IDeserializationCallback.OnDeserialization(object sender) { }

		public void SetPermission_Unrestricted ()
		{
			SecurityPermission sp = new SecurityPermission (PermissionState.Unrestricted);
			PermissionSet ps = new PermissionSet (PermissionState.Unrestricted);
			Assert.AreEqual (0, ps.Count, "Empty");
			Assert.IsTrue (ps.IsUnrestricted (), "State-Unrestricted");

			ZoneIdentityPermission zip = new ZoneIdentityPermission (SecurityZone.MyComputer);
			ZoneIdentityPermission zipr = (ZoneIdentityPermission)ps.SetPermission (zip);
			Assert.AreEqual (1, ps.Count, "ZoneIdentityPermission");
			Assert.AreEqual (SecurityZone.MyComputer, zipr.SecurityZone, "SecurityZone");
#if NET_2_0
			// Adding a non unrestricted identity permission now results in 
			// a permission set loosing it's unrestricted status
			Assert.IsTrue (!ps.IsUnrestricted (), "State-Unrestricted-2");
#else
			Assert.IsTrue (ps.IsUnrestricted (), "State-Unrestricted-2");
#endif
			zip = new ZoneIdentityPermission (SecurityZone.Intranet);
			zipr = (ZoneIdentityPermission)ps.SetPermission (zip);
			Assert.AreEqual (1, ps.Count, "ZoneIdentityPermission-2");
			Assert.AreEqual (SecurityZone.Intranet, zipr.SecurityZone, "SecurityZone-2");

			SecurityPermission result = (SecurityPermission)ps.SetPermission (sp);
			Assert.AreEqual (2, ps.Count, "SecurityPermission");
			Assert.AreEqual (SecurityPermissionFlag.AllFlags, result.Flags, "Flags");
			Assert.IsTrue (!ps.IsUnrestricted (), "State-None");

			sp = new SecurityPermission (SecurityPermissionFlag.ControlAppDomain);
			result = (SecurityPermission)ps.SetPermission (sp);
			Assert.AreEqual (2, ps.Count, "SecurityPermission-2");
			Assert.AreEqual (SecurityPermissionFlag.ControlAppDomain, result.Flags, "Flags-2");
		}