public void MessageDescriptor_Should_Properly_Pack_A_Message_Proto(int messageType, string data, params string[] arguments)
{
var messageDescriptor = new MessageDescriptor();
var protobufMessage = new TestMessage {
Data = data
};
var protobufMessageSerialized = protobufMessage.ToByteArray();
var argumentsDescriptors = GetArgumentsDescriptors(arguments);
var totalLength = protobufMessageSerialized.Length + argumentsDescriptors.Sum(argument => argument.Argument.Length + ProtobufHubProtocolConstants.ARGUMENT_HEADER_LENGTH) + 4; //Int => // ProtobufMessageLength
ReadOnlySpan <byte> messagePacked = messageDescriptor.PackMessage(messageType, protobufMessageSerialized, argumentsDescriptors);
Assert.Equal(messageType, messagePacked[0]);
Assert.Equal(totalLength, BitConverter.ToInt32(messagePacked.Slice(1, 4)));
Assert.Equal(protobufMessageSerialized.Length, BitConverter.ToInt32(messagePacked.Slice(5, 4)));
var protobufObject = new TestMessage();
protobufObject.MergeFrom(messagePacked.Slice(ProtobufHubProtocolConstants.MESSAGE_HEADER_LENGTH, protobufMessageSerialized.Length).ToArray());
Assert.Equal(protobufMessage, protobufObject);
var serializedArguments = messagePacked.Slice(ProtobufHubProtocolConstants.MESSAGE_HEADER_LENGTH + protobufMessageSerialized.Length);
var i = 0;
while (!serializedArguments.IsEmpty)
{
var argumentType = BitConverter.ToInt32(serializedArguments.Slice(0, 4));
var argumentLength = BitConverter.ToInt32(serializedArguments.Slice(4, 4));
var argument = serializedArguments.Slice(ProtobufHubProtocolConstants.ARGUMENT_HEADER_LENGTH, argumentLength).ToArray();
protobufObject.MergeFrom(argument);
Assert.Equal(ARGUMENT_TYPE, argumentType);
Assert.Equal(arguments[i++], protobufObject.Data);
serializedArguments = serializedArguments.Slice(ProtobufHubProtocolConstants.ARGUMENT_HEADER_LENGTH + argumentLength);
}
}
public void MessageDescriptor_Should_Retrieve_ProtobufMessage_From_A_PackedMessage(string data)
{
var protobufMessageSerialized = new TestMessage {
Data = data
}.ToByteArray();
var argumentsDescriptors = GetArgumentsDescriptors("arg");
ReadOnlySpan <byte> messagePacked = MessageDescriptor.PackMessage(1, protobufMessageSerialized, argumentsDescriptors);
var protobufMessage = MessageDescriptor.GetProtobufMessage(messagePacked);
var protobufObject = new TestMessage();
protobufObject.MergeFrom(protobufMessage.ToArray());
Assert.Equal(data, protobufObject.Data);
}
public void MessageDescriptor_Should_Retrieve_Arguments_From_A_PackedMessage(params string[] arguments)
{
var protobufMessageSerialized = new TestMessage {
Data = "FooBar"
}.ToByteArray();
var argumentsDescriptors = GetArgumentsDescriptors(arguments);
ReadOnlySpan <byte> messagePacked = MessageDescriptor.PackMessage(1, protobufMessageSerialized, argumentsDescriptors);
var descriptors = MessageDescriptor.GetArguments(messagePacked);
var i = 0;
foreach (var descriptor in descriptors)
{
var protobufObject = new TestMessage();
protobufObject.MergeFrom(descriptor.Argument);
Assert.Equal(ARGUMENT_TYPE, descriptor.Type);
Assert.Equal(arguments[i++], protobufObject.Data);
}
}