public void Filter_On_Permissions() { var att = new FilterAllowedOutgoingContentAttribute(typeof(IEnumerable<ContentItemBasic>)); var list = new List<dynamic>(); for (var i = 0; i < 10; i++) { list.Add(new ContentItemBasic{Id = i, Name = "Test" + i, ParentId = -1}); } var ids = list.Select(x => (int)x.Id).ToArray(); var userMock = new Mock<IUser>(); userMock.Setup(u => u.Id).Returns(9); userMock.Setup(u => u.StartContentId).Returns(-1); var user = userMock.Object; var userServiceMock = new Mock<IUserService>(); //we're only assigning 3 nodes browse permissions so that is what we expect as a result var permissions = new List<EntityPermission> { new EntityPermission(9, 1, new string[]{ "F" }), new EntityPermission(9, 2, new string[]{ "F" }), new EntityPermission(9, 3, new string[]{ "F" }), new EntityPermission(9, 4, new string[]{ "A" }) }; userServiceMock.Setup(x => x.GetPermissions(user, ids)).Returns(permissions); var userService = userServiceMock.Object; att.FilterBasedOnPermissions(list, user, userService); Assert.AreEqual(3, list.Count); Assert.AreEqual(1, list.ElementAt(0).Id); Assert.AreEqual(2, list.ElementAt(1).Id); Assert.AreEqual(3, list.ElementAt(2).Id); }