T6732: added same as vyos 1x

1 files changed, 59 insertions, 0 deletions

diff --git a/smoketest/scripts/cli/test_interfaces_loopback.py b/smoketest/scripts/cli/test_interfaces_loopback.py
new file mode 100644
index 0000000..0454dc6
--- /dev/null
+++ b/smoketest/scripts/cli/test_interfaces_loopback.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2020-2023 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import unittest
+
+from base_interfaces_test import BasicInterfaceTest
+from netifaces import interfaces
+
+from vyos.utils.network import is_intf_addr_assigned
+
+loopbacks = ['127.0.0.1', '::1']
+
+class LoopbackInterfaceTest(BasicInterfaceTest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls._base_path = ['interfaces', 'loopback']
+        cls._interfaces = ['lo']
+        # call base-classes classmethod
+        super(LoopbackInterfaceTest, cls).setUpClass()
+
+    # we need to override tearDown() as loopback interfaces are ephemeral and
+    # will always be present on the system - the base class check will fail as
+    # the loopback interface will still exist.
+    def tearDown(self):
+        self.cli_delete(self._base_path)
+        self.cli_commit()
+
+        # loopback interface must persist!
+        for intf in self._interfaces:
+            self.assertIn(intf, interfaces())
+
+    def test_add_single_ip_address(self):
+        super().test_add_single_ip_address()
+        for addr in loopbacks:
+            self.assertTrue(is_intf_addr_assigned('lo', addr))
+
+    def test_add_multiple_ip_addresses(self):
+        super().test_add_multiple_ip_addresses()
+        for addr in loopbacks:
+            self.assertTrue(is_intf_addr_assigned('lo', addr))
+
+    def test_interface_disable(self):
+        self.skipTest('not supported')
+
+if __name__ == '__main__':
+    unittest.main(verbosity=2)