testj1939-python

A reimplementation of testj1939 using Python APIs

This is mostly intended to:

1. illustrate how to use the J1939 socket APIs
2. serve as a series of integration tests of the J1939 functionality

Goals

These are various examples taken from the J1939 kickstart guide

• receive without source address
• receive with source address
• send
• Multiple source addresses on 1 CAN device
• Use PDU1 PGN
• Use destination address info
• Emit different PGNs using the same socket
• Larger packets

Advanced topics with j1939

• Change priority of J1939 packets

Known issues

• Integration tests are flakey (likely due to needing to synchronize between background processes)
• The -s argument doesn't work the same way as testj1939
• Add pyproject.toml
• Create wheels
• Package as a CLI script