public void Return_false_if_email_isnot_registered()
{
string email = "*****@*****.**";
var mockUserData = new Mock <IUserData>();
mockUserData.Setup(x => x.GetEmailAddress(email)).Returns(string.Empty);
IRegistrationProcess registrationProcess = new RegistrationProcess(mockUserData.Object);
bool isregistered = registrationProcess.IsRegisteredEmailAddress(email);
Assert.IsFalse(isregistered);
}
