public void ChangePassword_GetChangedPassword()
        {
            //Arrange
            var accountFacade        = new AccountFacade(_keysRepository, _userRepository, _emailSender.Object, userSettings);
            var userFacade           = new UserFacade(_userRepository, _groupRepository, _eventRepository, _publisher.Object);
            var expectedPasswordHash = Credentials.FromRawData("someEmail", "newPassword").PasswordHash;
            var userId = accountFacade.RegUser("Alena", Credentials.FromRawData("email", "password"), true);

            //Act
            accountFacade.ChangePassword(userId, "newPassword");
            var currentUser = userFacade.GetUser(userId);

            //Assert
            Assert.AreEqual(expectedPasswordHash, currentUser.Credentials.PasswordHash);
        }