public void When_deserializing_versioned_message_use_first_available_message_type()
{
var typeNameSerializer = new TypeNameSerializer();
var serializer = new JsonSerializer(typeNameSerializer);
const string correlationId = "CorrelationId";
var serializationStrategy = new VersionedMessageSerializationStrategy(typeNameSerializer, serializer, new StaticCorrelationIdGenerationStrategy(correlationId));
var messageBody = new MyMessageV2 {
Text = "Hello world!", Number = 5
};
var message = new Message <MyMessageV2>(messageBody);
var serializedMessage = serializationStrategy.SerializeMessage(message);
// Mess with the properties to mimic a message serialised as MyMessageV3
var messageType = serializedMessage.Properties.Type;
serializedMessage.Properties.Type = messageType.Replace("MyMessageV2", "SomeCompletelyRandomType");
var alternativeMessageHeader = (string)serializedMessage.Properties.Headers[AlternativeMessageTypesHeaderKey];
alternativeMessageHeader = string.Concat(messageType, ";", alternativeMessageHeader);
serializedMessage.Properties.Headers[AlternativeMessageTypesHeaderKey] = Encoding.UTF8.GetBytes(alternativeMessageHeader);
var deserializedMessage = serializationStrategy.DeserializeMessage(serializedMessage.Properties, serializedMessage.Body);
Assert.That(deserializedMessage.Message.Body.GetType(), Is.EqualTo(typeof(MyMessageV2)));
Assert.That(deserializedMessage.Message.Body.Text, Is.EqualTo(message.Body.Text));
Assert.That(deserializedMessage.Message.Body.Number, Is.EqualTo(message.Body.Number));
}
public void When_using_the_versioned_serialization_strategy_versioned_messages_are_correctly_round_tripped()
{
var typeNameSerializer = new TypeNameSerializer();
var serializer = new JsonSerializer(typeNameSerializer);
const string correlationId = "CorrelationId";
var serializationStrategy = new VersionedMessageSerializationStrategy(typeNameSerializer, serializer, new StaticCorrelationIdGenerationStrategy(correlationId));
var messageBody = new MyMessageV2 {
Text = "Hello world!", Number = 5
};
var message = new Message <MyMessageV2>(messageBody);
var serializedMessage = serializationStrategy.SerializeMessage(message);
// RMQ converts the Header values into a byte[] so mimic the translation here
var alternativeMessageHeader = (string)serializedMessage.Properties.Headers[AlternativeMessageTypesHeaderKey];
serializedMessage.Properties.Headers[AlternativeMessageTypesHeaderKey] = Encoding.UTF8.GetBytes(alternativeMessageHeader);
var deserializedMessage = serializationStrategy.DeserializeMessage(serializedMessage.Properties, serializedMessage.Body);
Assert.That(deserializedMessage.Message.Body.GetType(), Is.EqualTo(message.Body.GetType()));
Assert.That(deserializedMessage.Message.Body.Text, Is.EqualTo(message.Body.Text));
Assert.That(deserializedMessage.Message.Body.Number, Is.EqualTo(message.Body.Number));
}
public void When_using_the_versioned_serialization_strategy_messages_are_correctly_round_tripped()
{
var typeNameSerializer = new TypeNameSerializer();
var serializer = new JsonSerializer(typeNameSerializer);
const string correlationId = "CorrelationId";
var serializationStrategy = new VersionedMessageSerializationStrategy(typeNameSerializer, serializer, () => correlationId);
var messageBody = new MyMessage {
Text = "Hello world!"
};
var message = new Message <MyMessage>(messageBody);
var serializedMessage = serializationStrategy.SerializeMessage(message);
var deserializedMessage = serializationStrategy.DeserializeMessage(serializedMessage.Properties, serializedMessage.Body);
Assert.That(deserializedMessage.Message.Body.GetType(), Is.EqualTo(message.Body.GetType()));
Assert.That(deserializedMessage.Message.Body.Text, Is.EqualTo(message.Body.Text));
}
public void When_using_the_versioned_serialization_strategy_messages_are_correctly_round_tripped()
{
var typeNameSerializer = new DefaultTypeNameSerializer();
var serializer = new JsonSerializer();
const string correlationId = "CorrelationId";
var serializationStrategy = new VersionedMessageSerializationStrategy(typeNameSerializer, serializer, new StaticCorrelationIdGenerationStrategy(correlationId));
var messageBody = new MyMessage {
Text = "Hello world!"
};
var message = new Message <MyMessage>(messageBody);
var serializedMessage = serializationStrategy.SerializeMessage(message);
var deserializedMessage = serializationStrategy.DeserializeMessage(serializedMessage.Properties, serializedMessage.Body);
Assert.Equal(deserializedMessage.MessageType, message.Body.GetType());
Assert.Equal(((Message <MyMessage>)deserializedMessage).Body.Text, message.Body.Text);
}
