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test: add AVB protocol test suite with loopback transport

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Add a test suite for the AVB (Audio Video Bridging) protocol stack that
runs entirely in software, requiring no hardware, root privileges, or
running PipeWire daemon.

The loopback transport (avb-transport-loopback.h) replaces raw AF_PACKET
sockets with in-memory packet capture, using a synthetic MAC address and
eventfd for protocol handlers that need a valid fd.

Test utilities (test-avb-utils.h) provide helpers for creating test
servers, injecting packets, advancing time, and building ADP packets.

Tests cover:
- ADP entity available/departing/discover/timeout
- MRP attribute lifecycle (create, begin, join)
- Milan v1.2 mode server creation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Christian F.K. Schaller 2026-04-07 07:06:35 -04:00 • committed by Wim Taymans
parent a73988d38d
commit ef4ff8cfd0
4 changed files with 730 additions and 0 deletions
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39
test/meson.build
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@ -163,3 +163,42 @@ if valgrind.found()
env : valgrind_env,
timeout_multiplier : 3)
endif
if build_module_avb
avb_test_inc = [pwtest_inc, include_directories('../src/modules')]
avb_module_sources = [
'../src/modules/module-avb/avb.c',
'../src/modules/module-avb/adp.c',
'../src/modules/module-avb/acmp.c',
'../src/modules/module-avb/aecp.c',
'../src/modules/module-avb/aecp-aem.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-available.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-get-set-control.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-get-set-name.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-get-set-clock-source.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-get-set-sampling-rate.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-deregister-unsolicited-notifications.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-register-unsolicited-notifications.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-get-set-stream-format.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-lock-entity.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/cmd-get-set-configuration.c',
'../src/modules/module-avb/aecp-aem-cmds-resps/reply-unsol-helpers.c',
'../src/modules/module-avb/es-builder.c',
'../src/modules/module-avb/avdecc.c',
'../src/modules/module-avb/descriptors.c',
'../src/modules/module-avb/maap.c',
'../src/modules/module-avb/mmrp.c',
'../src/modules/module-avb/mrp.c',
'../src/modules/module-avb/msrp.c',
'../src/modules/module-avb/mvrp.c',
'../src/modules/module-avb/srp.c',
'../src/modules/module-avb/stream.c',
]
test('test-avb',
executable('test-avb',
['test-avb.c'] + avb_module_sources,
include_directories: avb_test_inc,
dependencies: [spa_dep, pipewire_dep, mathlib, dl_lib, rt_lib],
link_with: pwtest_lib)
)
endif