1 files changed, 41 insertions, 0 deletions
diff --git a/smoketest/scripts/cli/test_interfaces_loopback.py b/smoketest/scripts/cli/test_interfaces_loopback.py
new file mode 100755
index 000000000..ba428b5d3
--- /dev/null
+++ b/smoketest/scripts/cli/test_interfaces_loopback.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2020 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 vyos.validate import is_intf_addr_assigned
+
+class LoopbackInterfaceTest(BasicInterfaceTest.BaseTest):
+    def setUp(self):
+         super().setUp()
+         # these addresses are never allowed to be removed from the system
+         self._loopback_addresses = ['127.0.0.1', '::1']
+         self._base_path = ['interfaces', 'loopback']
+         self._interfaces = ['lo']
+
+    def test_add_address_single(self):
+        super().test_add_address_single()
+        for addr in self._loopback_addresses:
+            self.assertTrue(is_intf_addr_assigned('lo', addr))
+
+    def test_add_address_multi(self):
+        super().test_add_address_multi()
+        for addr in self._loopback_addresses:
+            self.assertTrue(is_intf_addr_assigned('lo', addr))
+
+if __name__ == '__main__':
+    unittest.main()