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de01f6a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | """Shared pytest fixtures."""
from __future__ import annotations
import wave
from pathlib import Path
import numpy as np
import pytest
def _write_sine_wav(path: Path, duration: float = 3.0, sr: int = 16000) -> Path:
t = np.linspace(0, duration, int(sr * duration), endpoint=False)
tone = 0.3 * np.sin(2 * np.pi * 220 * t)
ints = (tone * 32767).astype(np.int16)
with wave.open(str(path), "wb") as wf:
wf.setnchannels(1)
wf.setsampwidth(2)
wf.setframerate(sr)
wf.writeframes(ints.tobytes())
return path
@pytest.fixture
def sine_wav(tmp_path: Path) -> Path:
return _write_sine_wav(tmp_path / "tone.wav")
@pytest.fixture
def sample_rate() -> int:
return 16000
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