From 0a7888e165396dd200bc73a060c330c04fec0920 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Tue, 1 Dec 2020 16:38:57 +0100
Subject: smoketest: dhcp: T3100: add initial testcase for a single pool

---
 smoketest/scripts/cli/test_service_dhcp-server.py | 95 +++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100755 smoketest/scripts/cli/test_service_dhcp-server.py

diff --git a/smoketest/scripts/cli/test_service_dhcp-server.py b/smoketest/scripts/cli/test_service_dhcp-server.py
new file mode 100755
index 000000000..03537472a
--- /dev/null
+++ b/smoketest/scripts/cli/test_service_dhcp-server.py
@@ -0,0 +1,95 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2019-2020 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 re
+import os
+import unittest
+
+from vyos.configsession import ConfigSession
+from vyos.configsession import ConfigSessionError
+from vyos.util import cmd
+from vyos.util import process_named_running
+from vyos.util import read_file
+from vyos.template import inc_ip
+from vyos.template import address_from_cidr
+from vyos.template import netmask_from_cidr
+
+PROCESS_NAME = 'dhcpd'
+DHCPD_CONF = '/run/dhcp-server/dhcpd.conf'
+base_path = ['service', 'dhcp-server']
+subnet = '192.0.2.0/25'
+router = inc_ip(subnet, 1)
+
+class TestServiceDHCPServer(unittest.TestCase):
+    def setUp(self):
+        self.session = ConfigSession(os.getpid())
+        cidr_mask = subnet.split('/')[-1]
+        self.session.set(['interfaces', 'dummy', 'dum8765', 'address', f'{router}/{cidr_mask}'])
+
+    def tearDown(self):
+        self.session.delete(['interfaces', 'dummy', 'dum8765'])
+        self.session.delete(base_path)
+        self.session.commit()
+        del self.session
+
+    def test_single_pool(self):
+        shared_net_name = 'SMOKE-1'
+
+        dns_1 = inc_ip(subnet, 2)
+        dns_2 = inc_ip(subnet, 3)
+        domain_name = 'vyos.net'
+        range_0_start = inc_ip(subnet, 10)
+        range_0_stop  = inc_ip(subnet, 20)
+        range_1_start = inc_ip(subnet, 40)
+        range_1_stop  = inc_ip(subnet, 50)
+
+        pool = base_path + ['shared-network-name', shared_net_name, 'subnet', subnet]
+        # we use the first subnet IP address as default gateway
+        self.session.set(pool + ['default-router', router])
+        self.session.set(pool + ['dns-server', dns_1])
+        self.session.set(pool + ['dns-server', dns_2])
+        self.session.set(pool + ['domain-name', domain_name])
+
+        # check validate() - No DHCP address range or active static-mapping set
+        with self.assertRaises(ConfigSessionError):
+            self.session.commit()
+        self.session.set(pool + ['range', '0', 'start', range_0_start])
+        self.session.set(pool + ['range', '0', 'stop', range_0_stop])
+        self.session.set(pool + ['range', '1', 'start', range_1_start])
+        self.session.set(pool + ['range', '1', 'stop', range_1_stop])
+
+        # commit changes
+        self.session.commit()
+
+        config = read_file(DHCPD_CONF)
+        network = address_from_cidr(subnet)
+        netmask = netmask_from_cidr(subnet)
+        self.assertIn(f'ddns-update-style none;', config)
+        self.assertIn(f'subnet {network} netmask {netmask}' + r' {', config)
+        self.assertIn(f'option domain-name-servers {dns_1}, {dns_2};', config)
+        self.assertIn(f'option routers {router};', config)
+        self.assertIn(f'option domain-name "{domain_name}";', config)
+        self.assertIn(f'default-lease-time 86400;', config)
+        self.assertIn(f'max-lease-time 86400;', config)
+        self.assertIn(f'range {range_0_start} {range_0_stop};', config)
+        self.assertIn(f'range {range_1_start} {range_1_stop};', config)
+        self.assertIn(f'set shared-networkname = "{shared_net_name}";', config)
+
+        # Check for running process
+        self.assertTrue(process_named_running(PROCESS_NAME))
+
+if __name__ == '__main__':
+    unittest.main()
-- 
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