public void WhenCommandIsIssuedThenEventIsAppliedToAggregate()
{
var aggregate = new TestAggregate();
aggregate.ChangeName("New Name");
Assert.Equal("New Name", aggregate.Name);
}
public void WhenCommandIsIssuedThenPendingEventIsCreated()
{
var aggregate = new TestAggregate();
Assert.Equal(0, aggregate.GetPendingEvents().Count);
aggregate.ChangeName("New Name");
Assert.Equal(1, aggregate.GetPendingEvents().Count);
}
public void WhenCommandIsIssuedThenVersionIsIncremented()
{
var aggregate = new TestAggregate();
Assert.Equal(-1, aggregate.Version);
aggregate.ChangeName("New Name");
Assert.Equal(0, aggregate.Version);
}
public async void WhenAggregateIsSavedThenPendingEventsAreWritten()
{
var connection = A.Fake <IEventStoreConnection>();
var repository = new Repository(connection, new EventTypeResolver(ReflectionHelper.ContractsAssembly));
var testAggregate = new TestAggregate();
testAggregate.ChangeName("First Name");
testAggregate.ChangeName("Second Name");
await repository.SaveAsync(testAggregate);
Func <IEnumerable <EventData>, bool> expectedEventData = data => data.Count(x => x.Type == "TestAggregateNameChangedEvent") == 2;
A.CallTo(
() =>
connection.AppendToStreamAsync(A <string> .That.IsEqualTo(testAggregate.Identifier.ToString()),
A <int> ._,
A <IEnumerable <EventData> > .That.Matches(expectedEventData, "EventData Is Correct"),
A <UserCredentials> ._)).MustHaveHappened(Repeated.Exactly.Once);
}
public async void WhenAggregateIsSavedThenPendingEventsAreClearedFromAggregate()
{
var aggregate = new TestAggregate();
aggregate.ChangeName("New Name");
var connection = A.Fake <IEventStoreConnection>();
var repository = new Repository(connection, new EventTypeResolver(ReflectionHelper.ContractsAssembly));
await repository.SaveAsync(aggregate);
Assert.Equal(0, aggregate.GetPendingEvents().Count);
}