public void SendCongratulationsEmail_ShouldSendEmail()
{
var user = FakeUser();
var service = new UsersService(emailService.Object, mockUsersRepository.Object);
emailService.Setup(x => x.Send(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<bool>())).Returns(true);
var ret = service.SendRegisterCongratulationsToEmail(user);
emailService.Verify(x => x.Send("*****@*****.**", It.IsAny<string>(), It.IsAny<string>(), It.IsAny<bool>()), Times.Once());
Assert.IsTrue(ret);
}