feat: Diarizer class wrapping pyannote/speaker-diarization-3.1

tests/test_diarization.py

@@ -0,0 +1,38 @@
+from unittest.mock import MagicMock, patch
+import pytest
+
+
+def test_diarizer_returns_list_of_tuples(tmp_path):
+    """Diarizer.diarize() returns [(start, end, speaker), ...]"""
+    wav = tmp_path / "test.wav"
+    wav.write_bytes(b"\x00" * 100)
+
+    mock_turn_1 = MagicMock()
+    mock_turn_1.start = 0.0
+    mock_turn_1.end = 2.5
+
+    mock_turn_2 = MagicMock()
+    mock_turn_2.start = 2.6
+    mock_turn_2.end = 5.0
+
+    mock_annotation = MagicMock()
+    mock_annotation.itertracks.return_value = [
+        (mock_turn_1, "A", "SPEAKER_00"),
+        (mock_turn_2, "B", "SPEAKER_01"),
+    ]
+
+    mock_pipeline = MagicMock(return_value=mock_annotation)
+
+    import asyncio
+    from diarization import Diarizer
+    d = Diarizer.__new__(Diarizer)
+    d._pipeline = mock_pipeline
+
+    result = asyncio.run(d.diarize(str(wav)))
+    assert result == [(0.0, 2.5, "SPEAKER_00"), (2.6, 5.0, "SPEAKER_01")]
+
+
+def test_diarizer_requires_hf_token():
+    from diarization import Diarizer
+    with pytest.raises(ValueError, match="hf_token"):
+        Diarizer(hf_token="")