dangerzone/tests/isolation_provider/test_qubes.py
Alex Pyrgiotis 634523dac9
Get underlying error when conversion fails
When we get an early EOF from the converter process, we should
immediately get the exit code of that process, to find out the actual
underlying error. Currently, the exception we raise masks the underlying
error.

Raise a ConverterProcException, that in turns makes our error handling
code read the exit code of the spawned process, and converts it to a
helpful error message.

Fixes #714
2024-02-20 15:55:45 +02:00

64 lines
1.9 KiB
Python

import signal
import subprocess
import time
import pytest
from pytest import MonkeyPatch
from pytest_mock import MockerFixture
from dangerzone.conversion import errors
from dangerzone.document import Document
from dangerzone.isolation_provider.base import IsolationProvider
from dangerzone.isolation_provider.qubes import Qubes, running_on_qubes
# XXX Fixtures used in abstract Test class need to be imported regardless
from .. import (
pdf_11k_pages,
sample_bad_height,
sample_bad_width,
sample_doc,
sanitized_text,
uncommon_text,
)
from .base import IsolationProviderTest
@pytest.fixture
def provider() -> Qubes:
return Qubes()
@pytest.mark.skipif(not running_on_qubes(), reason="Not on a Qubes system")
class TestQubes(IsolationProviderTest):
def test_out_of_ram(
self,
provider: Qubes,
mocker: MockerFixture,
monkeypatch: MonkeyPatch,
sample_doc: str,
tmpdir: str,
) -> None:
provider.progress_callback = mocker.MagicMock()
proc = None
def start_doc_to_pixels_proc() -> subprocess.Popen:
proc = subprocess.Popen(
# XXX error 126 simulates a qrexec-policy failure. Source:
# https://github.com/QubesOS/qubes-core-qrexec/blob/fdcbfd7/daemon/qrexec-daemon.c#L1022
["exit 126"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True,
)
return proc
monkeypatch.setattr(
provider, "start_doc_to_pixels_proc", start_doc_to_pixels_proc
)
with pytest.raises(errors.ConverterProcException) as e:
doc = Document(sample_doc)
provider.doc_to_pixels(doc, tmpdir)
assert provider.get_proc_exception(proc) == errors.QubesQrexecFailed # type: ignore [arg-type]