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Mock PermissionError in config file permission test #750

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Merged
jonathan343 merged 1 commit into from
Jul 23, 2026
Merged

Mock PermissionError in config file permission test #750

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12 changes: 7 additions & 5 deletions packages/smithy-aws-core/tests/unit/config/test_config_file_io.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@


from pathlib import Path
from unittest.mock import patch

import pytest
from smithy_aws_core.config import load_config
Expand All @@ -26,12 +27,13 @@ async def test_load_config_with_missing_files(self, tmp_path: Path):
async def test_permission_denied_returns_empty(self, tmp_path: Path):
restricted_file = tmp_path / "restricted_config"
restricted_file.write_text("[profile default]\nregion = us-east-1\n")
restricted_file.chmod(0o000)
try:
# Patch read_text to raise PermissionError rather than relying on
# chmod(0o000), which is bypassed when tests run as root (e.g. in CI).
with patch.object(
Path, "read_text", side_effect=PermissionError("Permission denied")
):
result = await parse_config_file(str(restricted_file))
assert result == {}
finally:
restricted_file.chmod(0o644)
assert result == {}


class TestEncodingErrors:
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