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import sys
from pathlib import Path
from unittest.mock import MagicMock
import pytest
from briefcase.exceptions import BriefcaseCommandError
from briefcase.platforms.linux import system
def test_valid_python3(monkeypatch, create_command):
"""If Briefcase is being run with the system python, verification passes."""
# Mock the existence of a valid non-docker system Python
# with the same major/minor as the current Python
python3 = MagicMock()
python3.resolve.return_value = Path(
f"/usr/bin/python{sys.version_info.major}.{sys.version_info.minor}"
)
mock_Path = MagicMock(return_value=python3)
monkeypatch.setattr(system, "Path", mock_Path)
# System Python can be verified
create_command.verify_system_python()
@pytest.mark.parametrize(
"resolved_path, expected_error",
[
("/usr/bin/pythonX", "Can't determine the system python version"),
("/usr/bin/python3", "Can't determine the system python version"),
(
"/usr/bin/python3.X",
r"The version of Python being used to run Briefcase \(3\..*\) is not the system python3 \(3.X\)\.",
),
],
)
def test_bad_python3(monkeypatch, create_command, resolved_path, expected_error):
"""If the system Python3 isn't obviously a Python3, an error is raised."""
# Mock a Python3 symlink that isn't the existence of a valid non-docker system Python
# with the same major/minor as the current Python
python3 = MagicMock()
python3.resolve.return_value = Path(resolved_path)
mock_Path = MagicMock(return_value=python3)
monkeypatch.setattr(system, "Path", mock_Path)
# Verifying python raises an error
with pytest.raises(BriefcaseCommandError, match=expected_error):
create_command.verify_system_python()
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