[PROTON-2574] ProtonPython3 doesn't include body session in message if body is set to null

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: proton-c-0.37.0
• Component/s: python-binding
• Environment: Ubuntu 20.04 in WSL2, python3-qpid-proton/focal,now 0.37.0-1focal+qpid1 amd64, Python 3.8.10, broker is vromero/activemq-artemis running in docker

Language

Python

• Assignee: Unassigned
• Reporter: Minghua Wu
• Created: 05/Jul/22 20:59
• Updated: 06/Jul/22 08:25

Description

According to page 82 of the specification

• The body consists of one of the following three choices: one or more data sections, one or more amqp-sequence sections, or a single amqp-value section

There should be at least one body section. However, when the body of the message is set to None (which probably should be encoded as amqp-value), there is not any body section found the in receiver side (ie. the payload doesn't come with any section that has the descriptor code 0x75, 0x76 or 0x77)

A modified "simple_sender.py" example, which is attached, is used as the sender, and the payload bytes received by the receiver are w[ 0x0, 0x53, 0x70, 0x45, 0x0, 0x53, 0x73, 0x45 ] which contains one empty header section (0x70), one empty properties section (0x73) but no body section (any of 0x75, 0x76 or 0x77).