187144d4e7Trim and tighten code comments and docstrings across the repository. Comment-only: every changed file verified code-identical to main via AST/token comparison.
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-only
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# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0
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"""Tests for UNSLOTH_PYTORCH_MIRROR env var in install_python_stack.py."""
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from __future__ import annotations
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import importlib
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import os
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import sys
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from pathlib import Path
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import pytest
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# install_python_stack.py lives at repo_root/studio/install_python_stack.py
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_INSTALL_SCRIPT = Path(__file__).resolve().parents[2] / "install_python_stack.py"
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OFFICIAL_URL = "https://download.pytorch.org/whl"
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def _reload_whl_base(monkeypatch, mirror_value = None):
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"""(Re-)import install_python_stack with a controlled env, return _PYTORCH_WHL_BASE."""
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# Drop cached module so the module-level assignment re-executes.
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sys.modules.pop("install_python_stack", None)
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if mirror_value is None:
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monkeypatch.delenv("UNSLOTH_PYTORCH_MIRROR", raising = False)
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else:
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monkeypatch.setenv("UNSLOTH_PYTORCH_MIRROR", mirror_value)
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# Add the script's directory to sys.path for import.
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script_dir = str(_INSTALL_SCRIPT.parent)
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monkeypatch.syspath_prepend(script_dir)
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import install_python_stack
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return install_python_stack._PYTORCH_WHL_BASE
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class TestPyTorchMirrorEnvVar:
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"""UNSLOTH_PYTORCH_MIRROR controls _PYTORCH_WHL_BASE in install_python_stack."""
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def test_unset_uses_official_url(self, monkeypatch):
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assert _reload_whl_base(monkeypatch) == OFFICIAL_URL
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def test_empty_string_falls_back_to_official(self, monkeypatch):
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assert _reload_whl_base(monkeypatch, "") == OFFICIAL_URL
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def test_custom_mirror_is_used(self, monkeypatch):
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mirror = "https://mirrors.nju.edu.cn/pytorch/whl"
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assert _reload_whl_base(monkeypatch, mirror) == mirror
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def test_trailing_slash_stripped(self, monkeypatch):
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result = _reload_whl_base(monkeypatch, "https://example.com/whl/")
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assert result == "https://example.com/whl"
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