@Test
public void preventsDuplicateEmail() {
Customer dave = repository.findByEmailAddress(new EmailAddress("*****@*****.**"));
Customer anotherDave = new Customer("Dave", "Matthews");
anotherDave.setEmailAddress(dave.getEmailAddress());
repository.save(anotherDave);
}
@Test
public void readsCustomerByEmail() {
EmailAddress email = new EmailAddress("*****@*****.**");
Customer alicia = new Customer("Alicia", "Keys");
alicia.setEmailAddress(email);
repository.save(alicia);
Customer result = repository.findByEmailAddress(email);
assertThat(result, is(alicia));
}