Palash DebnathandClaude Opus 5
fd7d2d94dd
Closes #1957. A download failed with nothing but the OS sentence: "[WinError 448] The path cannot be traversed because it contains an untrusted mount point". That is a Windows rule about the VOLUME — Dev Drives, mounted VHD/ReFS volumes and junctions into another user profile all trigger it — so retrying the same link can never work, and the message names nothing the user can change. Classified now, with a remedy that points at Settings → Storage and gives the fsutil escape hatch for a folder that has to stay put. Matched on the numeric code first, since Windows translates the sentence, with the English phrase as a fallback. Allowlisted for context-free surfaces because it arrives through the global 500 handler, which otherwise attaches no hint at all — and its trigger is unmistakable, so it cannot land on an unrelated failure. A test pins that the offending path never comes back in the payload. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017ypcgSsh5j2PEonSJiAU1S
68 lines
2.5 KiB
Python
68 lines
2.5 KiB
Python
"""#1957 — WinError 448 must arrive with a remedy, not as a bare OS sentence.
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A download failed with "[WinError 448] The path cannot be traversed because it
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contains an untrusted mount point: <a folder on D:>" and nothing else.
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That is a Windows rule about the VOLUME — Dev Drives, mounted VHD/ReFS volumes,
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and junctions into another profile all trigger it — so no amount of retrying
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the same link helps, and the message gives the user nothing to change.
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Matched on the numeric code first because Windows translates the sentence, with
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the English phrase as a fallback for locales that report it verbatim.
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"""
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import pytest
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from core.failure import _CONTEXT_FREE_HINT_CLASSES, classify, public_hint_for_topic
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from core.public_errors import public_exception_response
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_RAW = (
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"download: [WinError 448] The path cannot be traversed because it contains "
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r"an untrusted mount point: 'D:\CodingStuff\nodejs'"
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)
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def test_the_windows_code_is_classified():
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assert classify(_RAW) == "WINDOWS_UNTRUSTED_MOUNT"
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def test_a_translated_message_still_classifies_on_the_code():
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# Windows localises the sentence; the bracketed code is what survives.
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assert classify("[WinError 448] Der Pfad kann nicht durchlaufen werden") == (
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"WINDOWS_UNTRUSTED_MOUNT"
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)
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def test_the_english_phrase_alone_classifies():
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assert classify("contains an untrusted mount point") == "WINDOWS_UNTRUSTED_MOUNT"
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def test_the_hint_names_something_the_user_can_change():
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hint = public_hint_for_topic("WINDOWS_UNTRUSTED_MOUNT")
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assert "Storage" in hint
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assert "448" in hint
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def test_it_reaches_the_user_on_a_context_free_surface():
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# The failure arrives through the global 500 handler, which only attaches
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# hints from the allowlist — so being classified is not enough on its own.
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assert "WINDOWS_UNTRUSTED_MOUNT" in _CONTEXT_FREE_HINT_CLASSES
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payload = public_exception_response(OSError(_RAW), fallback="Internal error.")
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assert payload["docs_topic"] == "WINDOWS_UNTRUSTED_MOUNT"
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assert payload["detail"] != "Internal error."
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def test_the_offending_path_is_never_echoed_back():
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payload = public_exception_response(OSError(_RAW), fallback="Internal error.")
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for value in payload.values():
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assert "CodingStuff" not in str(value)
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@pytest.mark.parametrize(
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"other",
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[
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"[WinError 1260] blocked by an application control policy",
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"[WinError 1455] The paging file is too small for this operation",
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],
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)
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def test_the_other_windows_classes_are_untouched(other):
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assert classify(other) != "WINDOWS_UNTRUSTED_MOUNT"
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