public void Users_List() { IEnumerable<GroupUser> fakeGroupUser = new List<GroupUser> { new GroupUser {AddedDate=DateTime.Now,Admin=true,GroupId=1,GroupUserId=1,UserId="402bd590-fdc7-49ad-9728-40efbfe512ec"}, new GroupUser {AddedDate=DateTime.Now,Admin=false,GroupId=1,GroupUserId=2,UserId="402bd590-fdc7-49ad-9728-40efbfe512ed"}, new GroupUser {AddedDate=DateTime.Now,Admin=false,GroupId=1,GroupUserId=3,UserId="402bd590-fdc7-49ad-9728-40efbfe512ee"}, new GroupUser {AddedDate=DateTime.Now,Admin=true,GroupId=1,GroupUserId=4,UserId="402bd590-fdc7-49ad-9728-40efbfe512ef"}, new GroupUser {AddedDate=DateTime.Now,Admin=true,GroupId=1,GroupUserId=5,UserId="402bd590-fdc7-49ad-9728-40efbfe512eg"}, new GroupUser {AddedDate=DateTime.Now,Admin=true,GroupId=2,GroupUserId=6,UserId="402bd590-fdc7-49ad-9728-40efbfe512eh"} }.AsEnumerable(); groupUserRepository.Setup(x => x.GetMany(It.IsAny<Expression<Func<GroupUser, bool>>>())).Returns(fakeGroupUser); GroupController controller = new GroupController(groupService, groupUserService, userService, metricService, focusService, groupgoalService, groupInvitationService, securityTokenService, groupUpdateService, groupCommentService, goalStatusService, groupRequestService, followUserService, groupCommentUserService, groupUpdateSupportService, groupUpdateUserService); ViewResult result = controller.UsersList(2) as ViewResult; Assert.IsNotNull(result); Assert.IsInstanceOfType(typeof(List<GroupUser>), result.ViewData.Model, "Wrong Model"); var grpusr = result.ViewData.Model as List<GroupUser>; Assert.AreEqual(6, grpusr.Count(), "Got wrong number of GroupUser"); }