public void Promote_cannot_promote_a_gold_customer()
{
Customer customer = CreateCustomer(status: CustomerStatus.Gold);
var emailGateway = new FakeEmailGateway();
Response response = Invoke(x => x.Promote(customer.Id), emailGateway);
response.ShouldBeError("The customer has the highest status possible");
emailGateway.ShouldContainNumberOfPromotionNotificationsSent(0);
}
public void Promote_promotes_customer()
{
Customer customer = CreateCustomer();
var emailGateway = new FakeEmailGateway();
Response response = Invoke(x => x.Promote(customer.Id), emailGateway);
response.ShouldBeOk();
using (var db = new CustomerDatabase())
{
db.ShouldContainCustomer(customer.Id)
.WithStatus(CustomerStatus.Preferred);
emailGateway.ShouldContainNumberOfPromotionNotificationsSent(1);
}
}