public async Task cannot_make_reservation_twice()
{
// Given
var irrelevantArrivalDate = new DateTime(2020, 02, 01);
var irrelevantDepartureDate = new DateTime(2020, 02, 02);
var id = ReservationId.New;
var reservation = new Reservation(id);
reservation.Apply(new ReservationCreated(
id,
irrelevantArrivalDate,
irrelevantDepartureDate,
Hotel.CreateCheckInTimeFromDate(irrelevantArrivalDate),
Hotel.CreateCheckOutTimeFromDate(irrelevantDepartureDate)));
var handler = new MakeReservationHandler();
// When
var result = await handler.ExecuteCommandAsync(reservation,
new MakeReservation(id,
ValidName,
ValidEmailAddress,
irrelevantArrivalDate,
irrelevantDepartureDate),
CancellationToken.None);
//Then
Assert.False(result.IsSuccess);
Assert.Equal("unexpected state: Reserved", ((FailedExecutionResult)result).Errors.Single());
}
public async Task rejects_if_a_price_offer_has_expired()
{
// Given
var id = ReservationId.New;
var reservation = new Reservation(id);
var arrivalDate = new DateTime(2020, 02, 01);
var date2 = new DateTime(2020, 02, 02);
var departureDate = new DateTime(2020, 02, 03);
var offeredPrice1 = Money.Euro(101);
var offeredPrice2 = Money.Euro(102);
var offerExpiresInFuture = DateTime.UtcNow.AddHours(1);
var offerExpiresNow = DateTime.UtcNow;
reservation.Apply(new PriceOffered(arrivalDate, offeredPrice1, offerExpiresInFuture));
reservation.Apply(new PriceOffered(date2, offeredPrice2, offerExpiresNow));
var handler = new MakeReservationHandler();
// When
var result = await handler.ExecuteCommandAsync(reservation,
new MakeReservation(id,
ValidName,
ValidEmailAddress,
arrivalDate,
departureDate),
CancellationToken.None);
//Then
Assert.False(result.IsSuccess);
Assert.Equal($"price offer for date {date2} has expired", ((FailedExecutionResult)result).Errors.Single());
}
public async Task produces_line_items_for_every_date_in_range()
{
// Given
var id = ReservationId.New;
var reservation = new Reservation(id);
var offeredPrice1 = Money.Euro(101);
var offeredPrice2 = Money.Euro(102);
var offeredPrice3 = Money.Euro(103);
var offerExpiresInFuture = DateTime.UtcNow.AddHours(1);
var arrivalDate = new DateTime(2020, 02, 01);
var date2 = new DateTime(2020, 02, 02);
var date3 = new DateTime(2020, 02, 03);
var departureDate = new DateTime(2020, 02, 04);
reservation.Apply(new PriceOffered(arrivalDate, offeredPrice1, offerExpiresInFuture));
reservation.Apply(new PriceOffered(date2, offeredPrice2, offerExpiresInFuture));
reservation.Apply(new PriceOffered(date3, offeredPrice3, offerExpiresInFuture));
var handler = new MakeReservationHandler();
// When
var result = await handler.ExecuteCommandAsync(
reservation,
new MakeReservation(
id,
ValidName,
ValidEmailAddress,
arrivalDate,
departureDate),
CancellationToken.None);
// Then
Assert.True(result.IsSuccess);
var uncommittedEvents = reservation.UncommittedEvents.ToArray();
var firstLineItem = (LineItemCreated)uncommittedEvents[2].AggregateEvent;
Assert.Equal(offeredPrice1, firstLineItem.OfferPrice);
Assert.Equal(arrivalDate, firstLineItem.OfferDate);
Assert.Equal(1, firstLineItem.LineItems);
var secondLineItem = (LineItemCreated)uncommittedEvents[3].AggregateEvent;
Assert.Equal(offeredPrice2, secondLineItem.OfferPrice);
Assert.Equal(date2, secondLineItem.OfferDate);
Assert.Equal(2, secondLineItem.LineItems);
var thirdLineItem = (LineItemCreated)uncommittedEvents[4].AggregateEvent;
Assert.Equal(offeredPrice3, thirdLineItem.OfferPrice);
Assert.Equal(date3, thirdLineItem.OfferDate);
Assert.Equal(3, thirdLineItem.LineItems);
}
public async Task make_reservation_for_one_night()
{
// Given
var id = ReservationId.New;
var reservation = new Reservation(id);
var arrivalDate = new DateTime(2020, 02, 01);
var departureDate = new DateTime(2020, 02, 02);
var offeredPrice = Money.Euro(101);
var offerExpiresInFuture = DateTime.UtcNow.AddHours(1);
reservation.Apply(new PriceOffered(arrivalDate, offeredPrice, offerExpiresInFuture));
var handler = new MakeReservationHandler();
// When
var result = await handler.ExecuteCommandAsync(
reservation,
new MakeReservation(
id,
ValidName,
ValidEmailAddress,
arrivalDate,
departureDate),
CancellationToken.None);
// Then
Assert.True(result.IsSuccess);
Assert.Collection(reservation.UncommittedEvents,
@event =>
{
var aggregateEvent = (ContactInformationUpdated)@event.AggregateEvent;
Assert.Equal(ValidName, aggregateEvent.Name);
Assert.Equal(ValidEmailAddress, aggregateEvent.Email);
},
@event =>
{
var aggregateEvent = (ReservationCreated)@event.AggregateEvent;
Assert.Equal(arrivalDate, aggregateEvent.Arrival);
Assert.Equal(departureDate, aggregateEvent.Departure);
Assert.Equal(Hotel.CreateCheckInTimeFromDate(arrivalDate), aggregateEvent.CheckInTime);
Assert.Equal(Hotel.CreateCheckOutTimeFromDate(departureDate), aggregateEvent.CheckOutTime);
},
@event =>
{
var aggregateEvent = (LineItemCreated)@event.AggregateEvent;
Assert.Equal(arrivalDate, aggregateEvent.OfferDate);
Assert.Equal(offeredPrice, aggregateEvent.OfferPrice);
Assert.Equal(1, aggregateEvent.LineItems);
});
}
public async Task uses_the_new_price_if_an_expired_price_offer_has_been_replaced()
{
var id = ReservationId.New;
var reservation = new Reservation(id);
var arrivalDate = new DateTime(2020, 02, 01);
var date2 = new DateTime(2020, 02, 02);
var departureDate = new DateTime(2020, 02, 03);
var offeredPrice1 = Money.Euro(101);
var offeredPrice2 = Money.Euro(102);
var newOfferedPrice2 = Money.Euro(111);
var offerExpiresInFuture = DateTime.UtcNow.AddHours(1);
var offerExpiresNow = DateTime.UtcNow;
reservation.Apply(new PriceOffered(arrivalDate, offeredPrice1, offerExpiresInFuture));
reservation.Apply(new PriceOffered(date2, offeredPrice2, offerExpiresNow));
reservation.Apply(new PriceOffered(date2, newOfferedPrice2, offerExpiresInFuture));
var handler = new MakeReservationHandler();
// When
var result = await handler.ExecuteCommandAsync(
reservation,
new MakeReservation(
id,
ValidName,
ValidEmailAddress,
arrivalDate,
departureDate),
CancellationToken.None);
// Then
Assert.True(result.IsSuccess);
var uncommittedEvents = reservation.UncommittedEvents.ToArray();
var secondLineItem = (LineItemCreated)uncommittedEvents[3].AggregateEvent;
Assert.Equal(newOfferedPrice2, secondLineItem.OfferPrice);
Assert.Equal(date2, secondLineItem.OfferDate);
}