public static IKernelEventEnvelope Create(KernelEvent @event)
{
var factory = _envelopeFactories.GetOrAdd(
@event.GetType(),
eventType =>
{
var genericType = _envelopeTypesByEventTypeName[@event.GetType().Name];
var constructor = genericType.GetConstructors().Single();
var eventParameter = Expression.Parameter(
typeof(KernelEvent),
"e");
var newExpression = Expression.New(
constructor,
Expression.Convert(eventParameter, eventType));
var expression = Expression.Lambda <Func <KernelEvent, IKernelEventEnvelope> >(
newExpression,
eventParameter);
return(expression.Compile());
});
var envelope = factory(@event);
return(envelope);
}
public void All_event_types_are_round_trip_serializable(KernelEvent @event)
{
var originalEnvelope = KernelEventEnvelope.Create(@event);
var json = KernelEventEnvelope.Serialize(originalEnvelope);
_output.WriteLine($"{Environment.NewLine}{@event.GetType().Name}: {Environment.NewLine}{json}");
var deserializedEnvelope = KernelEventEnvelope.Deserialize(json);
// ignore these specific properties because they're not serialized
var ignoredProperties = new HashSet <string>
{
$"{nameof(CommandFailed)}.{nameof(CommandFailed.Exception)}",
$"{nameof(DisplayEvent)}.{nameof(DisplayEvent.Value)}"
};
deserializedEnvelope
.Should()
.BeEquivalentToRespectingRuntimeTypes(
originalEnvelope,
o => o.Excluding(envelope => envelope.Event.Command.Properties)
.Excluding(envelope => ignoredProperties.Contains($"{envelope.SelectedMemberInfo.DeclaringType.Name}.{envelope.SelectedMemberInfo.Name}"))
);
}
public void Event_contract_has_not_been_broken(KernelEvent @event)
{
var _configuration = new Configuration()
.UsingExtension($"{@event.GetType().Name}.json")
.SetInteractive(Debugger.IsAttached);
@event.Command?.SetToken("the-token");
var json = KernelEventEnvelope.Serialize(@event);
this.Assent(json, _configuration);
}
public void All_event_types_are_round_trip_serializable(KernelEvent @event)
{
var originalEnvelope = KernelEventEnvelope.Create(@event);
var json = KernelEventEnvelope.Serialize(originalEnvelope);
_output.WriteLine($"{Environment.NewLine}{@event.GetType().Name}: {Environment.NewLine}{json}");
var deserializedEnvelope = KernelEventEnvelope.Deserialize(json);
deserializedEnvelope
.Should()
.BeEquivalentTo(originalEnvelope,
o => o.Excluding(envelope => envelope.Event.Command.Properties));
}