@Test(expected = IllegalArgumentException.class)
public void testSignup_Throws_Exception_Given_Link_Url_Has_Whitespaces_Only()
		throws MessagingException, UsernameNotExistException,
		EmailAddressNotExistException, Hl7v3TransformerException,
		SpiritClientNotAvailableException, PatientExistingException {

	SignupDto signupDto = mock(SignupDto.class);
	sut.signup(signupDto, " ");
}