public void CustomersAreEqual()
{
var guid = Guid.NewGuid();
var id1 = new CustomerId(guid);
var id2 = new CustomerId(guid);
var customer1 = new Customer(id1);
var customer2 = new Customer(id2);
Assert.That(customer1, Is.EqualTo(customer2));
}
public bool Equals(Customer other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return Equals(other._id, _id);
}