@Override
    protected <T> void writeListTo(OutputStream out, List<T> messages, Schema<T> schema)
            throws IOException
    {
        ProtobufIOUtil.writeListTo(out, messages, schema, buf());
    }
Testcase for ser/deser of multiple messages using protobuf.

@author David Yu
@created Oct 7, 2010
protostuff-core/src/test/java/io/protostuff/ProtobufRepeatedMessagesTest.java