public void DeleteUser_ShouldReturnIActionResult_WhenDeleteUserViewModel()
        {
            _userService.Setup(us => us.GetUserByEmail("email")).Returns(new User());

            // Act
            var result = _administrationController.DeleteUser(new DeleteUserViewModel {
                Email = "email"
            }, "Delete") as IActionResult;

            // Assert
            Assert.NotNull(result);
        }