wehub-resource-sync
72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
from __future__ import annotations
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import importlib.util
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import sys
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import types
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from pathlib import Path
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import pytest
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ROOT = Path(__file__).resolve().parents[1]
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UTILS_PATH = ROOT / "src" / "voxcpm" / "model" / "utils.py"
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transformers_stub = types.ModuleType("transformers")
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transformers_stub.PreTrainedTokenizer = object
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sys.modules.setdefault("transformers", transformers_stub)
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spec = importlib.util.spec_from_file_location("voxcpm.model.utils", UTILS_PATH)
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utils = importlib.util.module_from_spec(spec)
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assert spec.loader is not None
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spec.loader.exec_module(utils)
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def test_resolve_runtime_device_auto_falls_back_to_cpu(monkeypatch):
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monkeypatch.setattr(utils.torch.cuda, "is_available", lambda: False)
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monkeypatch.setattr(utils, "_has_mps", lambda: False)
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assert utils.resolve_runtime_device(None, "cuda") == "cpu"
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def test_resolve_runtime_device_auto_uses_mps_when_available(monkeypatch):
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monkeypatch.setattr(utils.torch.cuda, "is_available", lambda: False)
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monkeypatch.setattr(utils, "_has_mps", lambda: True)
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assert utils.resolve_runtime_device("auto", "cuda") == "mps"
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def test_resolve_runtime_device_respects_explicit_cpu(monkeypatch):
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monkeypatch.setattr(utils.torch.cuda, "is_available", lambda: True)
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monkeypatch.setattr(utils, "_has_mps", lambda: True)
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assert utils.resolve_runtime_device("cpu", "cuda") == "cpu"
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def test_resolve_runtime_device_rejects_unavailable_explicit_cuda(monkeypatch):
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monkeypatch.setattr(utils.torch.cuda, "is_available", lambda: False)
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monkeypatch.setattr(utils, "_has_mps", lambda: True)
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with pytest.raises(ValueError, match="CUDA is not available"):
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utils.resolve_runtime_device("cuda:0", "cuda")
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def test_materialize_generation_seed_preserves_explicit_seed():
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assert utils.materialize_generation_seed(42) == 42
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def test_materialize_generation_seed_creates_concrete_seed_for_none(monkeypatch):
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monkeypatch.setattr(utils.torch, "seed", lambda: 0x123456789)
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assert utils.materialize_generation_seed(None) == 0x23456789
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def test_apply_generation_seed_sets_cpu_and_cuda_rng(monkeypatch):
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calls = []
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monkeypatch.setattr(utils.torch, "manual_seed", lambda seed: calls.append(("cpu", seed)))
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monkeypatch.setattr(utils.torch.cuda, "is_available", lambda: True)
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monkeypatch.setattr(utils.torch.cuda, "manual_seed_all", lambda seed: calls.append(("cuda", seed)))
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utils.apply_generation_seed(123)
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assert calls == [("cpu", 123), ("cuda", 123)]
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