public void GivenAnEventStoreAFactoryAndAProxyThenAnInstanceIsCreated()
{
_ = new DefaultSnapshotProvider <SequencedEvents>(
store.Object,
factory.Object,
() => type => proxy.Object);
}
public async Task GivenAStreamThenTheSnapshotContainsTheAggregatesThatComprizeThatStreamAsync()
{
SerializableEventCentricAggregateRoot expected = CreateAggregate(out IEnumerable <DomainEvent> events);
var other = new SerializableEventCentricAggregateRoot(expected.Id);
_ = factory
.Setup(factory => factory.CreateAsync(
It.IsAny <Reference>(),
It.IsAny <CancellationToken?>()))
.ReturnsAsync(other);
_ = proxy
.Setup(proxy => proxy.GetAsync(
It.IsAny <Reference>(),
It.IsAny <CancellationToken?>()))
.ReturnsAsync(default(EventCentricAggregateRoot) !);
_ = proxy
.Setup(proxy => proxy.GetAllAsync(It.IsAny <CancellationToken?>()))
.ReturnsAsync(new[] { other });
_ = store
.Setup(store => store.ReadAsync(
It.Is <ulong>(lastIndex => lastIndex == ulong.MinValue),
It.IsAny <CancellationToken?>(),
It.IsAny <ushort>()))
.ReturnsAsync(new[] { new SequencedEvents(1, events.ToArray()) });
_ = store
.Setup(store => store.ReadAsync(
It.Is <ulong>(lastIndex => lastIndex > ulong.MinValue),
It.IsAny <CancellationToken?>(),
It.IsAny <ushort>()))
.ReturnsAsync(Enumerable.Empty <SequencedEvents>());
var instance = new DefaultSnapshotProvider <SequencedEvents>(
store.Object,
factory.Object,
() => type => proxy.Object);
ISnapshot?snapshot = await instance.GenerateAsync();
Assert.NotNull(snapshot);
EventCentricAggregateRoot actual = Assert.Single(snapshot !.Aggregates);
Assert.Equal(expected, actual);
factory.Verify(
factory => factory.CreateAsync(
It.IsAny <Reference>(),
It.IsAny <CancellationToken?>()),
times: Times.Once);
factory.Verify(
factory => factory.CreateAsync(
It.Is <Reference>(reference => reference.Id == expected.Id),
It.IsAny <CancellationToken?>()),
times: Times.Once);
proxy.Verify(
proxy => proxy.GetAsync(
It.IsAny <Reference>(),
It.IsAny <CancellationToken?>()),
times: Times.Once);
proxy.Verify(
proxy => proxy.GetAllAsync(It.IsAny <CancellationToken?>()),
times: Times.Once);
}
