gistfile0.txt

diff --git a/cloudinit/distros/networking.py b/cloudinit/distros/networking.py
index ea966283..877887b4 100644
--- a/cloudinit/distros/networking.py
+++ b/cloudinit/distros/networking.py
@@ -195,8 +195,9 @@ class BSDNetworking(Networking):
         self._update_ifs()
 
     def _update_ifs(self):
-        ifs_txt, _ = subp.subp(["ifconfig", "-a"])
-        self.ifs = self.ifc.parse(ifs_txt)
+        ifconf = subp.subp(["ifconfig", "-a"])
+        if ifconf[0]:
+            self.ifs = self.ifc.parse(ifconf[0])
 
     def apply_network_config_names(self, netcfg: NetworkConfig) -> None:
         LOG.debug("Cannot rename network interface.")
diff --git a/tests/unittests/config/test_cc_power_state_change.py b/tests/unittests/config/test_cc_power_state_change.py
index 82824306..d90d795c 100644
--- a/tests/unittests/config/test_cc_power_state_change.py
+++ b/tests/unittests/config/test_cc_power_state_change.py
@@ -12,7 +12,17 @@ from cloudinit.config.schema import (
     validate_cloudconfig_schema,
 )
 from tests.unittests import helpers as t_help
-from tests.unittests.helpers import mock, skipUnlessJsonSchema
+from tests.unittests.helpers import mock, readResource, skipUnlessJsonSchema
+
+
+@pytest.fixture
+def bsd_cls(distro="freebsd", asset="netinfo/freebsd-ifconfig-output"):
+    """Returns a patched BSD distro class which already comes pre-loaded
+    with output for ``ifconfig -a``"""
+    ifs_txt = readResource(asset)
+    with mock.patch("cloudinit.subp.subp", return_value=(ifs_txt, None)):
+        cls = distros.fetch("freebsd")
+        yield cls
 
 
 class TestLoadPowerState(t_help.TestCase):
@@ -85,8 +95,8 @@ class TestLoadPowerState(t_help.TestCase):
         _cmd, _timeout, cond = psc.load_power_state(cfg, self.dist)
         self.assertEqual(cond, True)
 
-    def test_freebsd_poweroff_uses_lowercase_p(self):
-        cls = distros.fetch("freebsd")
+    def test_freebsd_poweroff_uses_lowercase_p(self, bsd_cls):
+        cls = bsd_cls()
         paths = helpers.Paths({})
         freebsd = cls("freebsd", {}, paths)
         cfg = {"power_state": {"mode": "poweroff"}}
diff --git a/tests/unittests/distros/test_networking.py b/tests/unittests/distros/test_networking.py
index fffaf22e..4a93268a 100644
--- a/tests/unittests/distros/test_networking.py
+++ b/tests/unittests/distros/test_networking.py
@@ -49,7 +49,7 @@ def generic_networking_cls():
 @pytest.fixture
 def bsd_networking_cls(asset="netinfo/freebsd-ifconfig-output"):
     """Returns a patched BSDNetworking class which already comes pre-loaded
-    with output for ``ifconfig -``"""
+    with output for ``ifconfig -a``"""
     ifs_txt = readResource(asset)
     with mock.patch("cloudinit.subp.subp", return_value=(ifs_txt, None)):
         yield BSDNetworking