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test/hil: allow audio startup transition

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Zixun LI
2026-07-28 21:15:58 +02:00
parent 8895e94b7f
commit d8595dafcd
1 changed files with 5 additions and 3 deletions
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8
test/hil/hil_test.py
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@ -1671,9 +1671,11 @@ def test_device_audio_test_freertos(board):
samples = [int.from_bytes(raw[i:i + 2], 'little', signed=False) for i in range(0, len(raw), 2)]
assert sample_count > 1024, f'Not enough samples captured: {sample_count}'
# The firmware sends a continuous uint16 ramp. Using ALSA hw: capture bypasses
# PulseAudio processing, so every adjacent sample must differ by exactly 1.
for i in range(sample_count - 1):
# The producer is already running while ALSA activates streaming, so the
# initial overwritable software FIFO (at most 224 samples) can transition
# between ramp generations. After that startup window, require an exact ramp.
startup_samples = 256
for i in range(startup_samples, sample_count - 1):
expected = (samples[i] + 1) & 0xFFFF
assert samples[i + 1] == expected, (
f'Audio mismatch at sample {i + 1}: expected {expected}, got {samples[i + 1]}')