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test: Add test for /etc/resolv.conf fallback

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Adds a unit test `test_resolvers_unix_resolv_conf_oserror` to `tests/test_netinfo.py` to cover the `OSError` fallback logic when `/etc/resolv.conf` cannot be read in `_resolvers_unix`.

Co-authored-by: Horizontal42 <75383519+Horizontal42@users.noreply.github.com>
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google-labs-jules[bot] 2026-09-10 08:41:15 +00:00
parent 8c99ac78b7
commit a97443655b
1 changed files with 15 additions and 0 deletions
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tests/test_netinfo.py
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@ -334,3 +334,18 @@ def test_collect_local_net_no_network(mock_resolvers, mock_gw, mock_stats, mock_
assert result.default_gateway_v6 is None assert result.default_gateway_v6 is None
assert result.is_dual_stack is False assert result.is_dual_stack is False
assert result.cgnat is False assert result.cgnat is False
@patch("netsleuth.netinfo.subprocess.run")
@patch("builtins.open")
def test_resolvers_unix_resolv_conf_oserror(mock_open, mock_run):
from netsleuth.netinfo import _resolvers_unix
mock_open.side_effect = OSError("No such file or directory")
mock_scutil = mock_run.return_value
mock_scutil.stdout = ""
result = _resolvers_unix()
assert result == {}