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test/hil: require exact audio ramp

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This commit is contained in:
Zixun LI
2026-07-28 19:15:20 +02:00
parent 9d9b2ef21c
commit a240ee5be9
1 changed files with 6 additions and 16 deletions
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22
test/hil/hil_test.py
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@ -1672,23 +1672,13 @@ def test_device_audio_test_freertos(board):
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 most adjacent samples should differ by exactly 1.
total_diffs = sample_count - 1
one_step = 0
near_step = 0
for i in range(total_diffs):
d = (samples[i + 1] - samples[i]) & 0xFFFF
if d == 1:
one_step += 1
if d in (0, 1, 2, 47, 48, 49):
near_step += 1
# PulseAudio processing, so every adjacent sample must differ by exactly 1.
for i in range(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]}')
one_ratio = one_step / total_diffs
near_ratio = near_step / total_diffs
assert one_ratio >= 0.85, f'Unexpected audio pattern (strict ratio={one_ratio:.3f})'
assert near_ratio >= 0.98, f'Unexpected audio pattern (relaxed ratio={near_ratio:.3f})'
print(f' ALSA {pcm} strict={one_ratio:.3f} relaxed={near_ratio:.3f}', end='')
print(f' ALSA {pcm}', end='')
def test_device_hid_generic_inout(board):