1 files changed, 68 insertions, 0 deletions
diff --git a/tests/unittests/distros/test_photon.py b/tests/unittests/distros/test_photon.py
new file mode 100644
index 00000000..3858f723
--- /dev/null
+++ b/tests/unittests/distros/test_photon.py
@@ -0,0 +1,68 @@
+# This file is part of cloud-init. See LICENSE file for license information.
+
+from . import _get_distro
+from cloudinit import util
+from tests.unittests.helpers import mock
+from tests.unittests.helpers import CiTestCase
+
+SYSTEM_INFO = {
+    'paths': {
+        'cloud_dir': '/var/lib/cloud/',
+        'templates_dir': '/etc/cloud/templates/',
+    },
+    'network': {'renderers': 'networkd'},
+}
+
+
+class TestPhoton(CiTestCase):
+    with_logs = True
+    distro = _get_distro('photon', SYSTEM_INFO)
+    expected_log_line = 'Rely on PhotonOS default network config'
+
+    def test_network_renderer(self):
+        self.assertEqual(self.distro._cfg['network']['renderers'], 'networkd')
+
+    def test_get_distro(self):
+        self.assertEqual(self.distro.osfamily, 'photon')
+
+    @mock.patch("cloudinit.distros.photon.subp.subp")
+    def test_write_hostname(self, m_subp):
+        hostname = 'myhostname'
+        hostfile = self.tmp_path('previous-hostname')
+        self.distro._write_hostname(hostname, hostfile)
+        self.assertEqual(hostname, util.load_file(hostfile))
+
+        ret = self.distro._read_hostname(hostfile)
+        self.assertEqual(ret, hostname)
+
+        m_subp.return_value = (None, None)
+        hostfile += 'hostfile'
+        self.distro._write_hostname(hostname, hostfile)
+
+        m_subp.return_value = (hostname, None)
+        ret = self.distro._read_hostname(hostfile)
+        self.assertEqual(ret, hostname)
+
+        self.logs.truncate(0)
+        m_subp.return_value = (None, 'bla')
+        self.distro._write_hostname(hostname, None)
+        self.assertIn('Error while setting hostname', self.logs.getvalue())
+
+    @mock.patch('cloudinit.net.generate_fallback_config')
+    def test_fallback_netcfg(self, m_fallback_cfg):
+
+        key = 'disable_fallback_netcfg'
+        # Don't use fallback if no setting given
+        self.logs.truncate(0)
+        assert(self.distro.generate_fallback_config() is None)
+        self.assertIn(self.expected_log_line, self.logs.getvalue())
+
+        self.logs.truncate(0)
+        self.distro._cfg[key] = True
+        assert(self.distro.generate_fallback_config() is None)
+        self.assertIn(self.expected_log_line, self.logs.getvalue())
+
+        self.logs.truncate(0)
+        self.distro._cfg[key] = False
+        assert(self.distro.generate_fallback_config() is not None)
+        self.assertNotIn(self.expected_log_line, self.logs.getvalue())