public void ReserveReturnsEquivalentInstanceWhenReplayed(
CapacityReservedEvent @event,
Capacity sut)
{
var expected = sut.Apply(@event);
var actual = sut.Apply(@event);
Assert.Equal(expected, actual);
}
public void ApplyThrowsOnUnknownMessage(
Capacity sut,
IMessage unknownMessage)
{
Assert.Throws <ArgumentException>(() =>
sut.Apply(unknownMessage));
}
public void ReserveDoesNotHaveSideEffects(
RequestReservationCommand request,
CapacityReservedEvent @event,
Capacity sut)
{
var actual = sut.Apply(@event);
Assert.NotEqual(actual, sut);
}
public void ReserveDoesNotThrowWhenQuantityIsEqualToRemaining(
Capacity sut,
RequestReservationCommand command)
{
var request = command.WithQuantity(sut.Remaining);
var @event = request.ReserveCapacity();
Assert.DoesNotThrow(() =>
sut.Apply(@event));
}
public void ReserveReturnsInstanceWithWithoutDecrementingRemainingWhenRequestWasAlreadyAccepted(
RequestReservationCommand request,
CapacityReservedEvent @event,
Capacity sut)
{
var expected = sut.Apply(@event);
var actual = expected.Apply(@event);
Assert.Equal(expected, actual);
}
public void ReserveThrowsWhenQuantityIsGreaterThanRemaining(
Capacity sut,
RequestReservationCommand command)
{
var greaterQuantity = sut.Remaining + 1;
var request = command.WithQuantity(greaterQuantity);
var @event = request.ReserveCapacity();
Assert.Throws <ArgumentOutOfRangeException>(() =>
sut.Apply(@event));
}
public void ReserveDoesNotThrowWhenQuantityIsLessThanRemaining(
Capacity sut,
RequestReservationCommand command)
{
var lesserQuantity = sut.Remaining - 1;
var request = command.WithQuantity(lesserQuantity);
var @event = request.ReserveCapacity();
Assert.DoesNotThrow(() =>
sut.Apply(@event));
}
public void ReserveReturnsInstanceWithCorrectlyDecrementedRemaining(
int quantity,
Capacity sut,
RequestReservationCommand command)
{
var expected = sut.Remaining - quantity;
var @event = command.WithQuantity(quantity).ReserveCapacity();
Capacity actual = sut.Apply(@event);
Assert.Equal(expected, actual.Remaining);
}
public void CanReserveIsConsistentAccrossReplays(
Capacity initial,
RequestReservationCommand command)
{
var remaining = initial.Remaining;
var request = command.WithQuantity(remaining);
var @event = request.ReserveCapacity();
var sut = initial.Apply(@event);
var result = sut.CanApply(@event);
Assert.True(result);
}
public void ConsumeDoesNotForwardReplayedEvent(
[Frozen]Mock<ICapacityRepository> repositoryMock,
[Frozen]Mock<IChannel<CapacityReservedEvent>> capacityChannelMock,
[Frozen]Mock<IChannel<SoldOutEvent>> soldOutChannelMock,
CapacityGate sut,
RequestReservationCommand command,
Capacity originalCapacity)
{
var requestWithinCapacity = command.WithQuantity(originalCapacity.Remaining - 1);
var newCapacity = originalCapacity.Apply(requestWithinCapacity.ReserveCapacity());
repositoryMock
.Setup(r => r.Read(command.Date.Date))
.Returns(newCapacity.ToMaybe());
sut.Consume(requestWithinCapacity);
repositoryMock.Verify(r => r.Append(requestWithinCapacity.Date.Date, It.IsAny<CapacityReservedEvent>()), Times.Never());
capacityChannelMock.Verify(r => r.Send(It.IsAny<CapacityReservedEvent>()), Times.Never());
soldOutChannelMock.Verify(r => r.Send(It.IsAny<SoldOutEvent>()), Times.Never());
}
public void ConsumeDoesNotForwardReplayedEvent(
[Frozen] Mock <ICapacityRepository> repositoryMock,
[Frozen] Mock <IChannel <CapacityReservedEvent> > capacityChannelMock,
[Frozen] Mock <IChannel <SoldOutEvent> > soldOutChannelMock,
CapacityGate sut,
RequestReservationCommand command,
Capacity originalCapacity)
{
var requestWithinCapacity = command.WithQuantity(originalCapacity.Remaining - 1);
var newCapacity = originalCapacity.Apply(requestWithinCapacity.ReserveCapacity());
repositoryMock
.Setup(r => r.Read(command.Date.Date))
.Returns(newCapacity.ToMaybe());
sut.Execute(requestWithinCapacity);
repositoryMock.Verify(r => r.Append(requestWithinCapacity.Date.Date, It.IsAny <CapacityReservedEvent>()), Times.Never());
capacityChannelMock.Verify(r => r.Send(It.IsAny <CapacityReservedEvent>()), Times.Never());
soldOutChannelMock.Verify(r => r.Send(It.IsAny <SoldOutEvent>()), Times.Never());
}