040000 tree 21a7c7ab21e53c5d90e36b20cba948d96843711e	auto_test
040000 tree 2102d4f58fc3d3a7f1ae95f51f737ae31ca99a76	channel_transport
040000 tree c29d5d09325e65855afd2fc897db5e0816d3c612	cmd_test