smoketest: add shim for every test to re-use common tasts

Currently every smoketest does the setup and destruction of the configsession
on its own durin setUp(). This creates a lot of overhead and one configsession
should be re-used during execution of every smoketest script.

In addiion a test that failed will leaf the system in an unconsistent state.
For this reason before the test is executed we will save the running config
to /tmp and the will re-load the config after the test has passed, always
ensuring a clean environment for the next test.

1 files changed, 14 insertions, 18 deletions

diff --git a/smoketest/scripts/cli/test_system_ipv6.py b/smoketest/scripts/cli/test_system_ipv6.py
index df69739eb..c9c9e833d 100755
--- a/smoketest/scripts/cli/test_system_ipv6.py
+++ b/smoketest/scripts/cli/test_system_ipv6.py
@@ -14,9 +14,9 @@
 # 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 os
 import unittest
 
+from base_vyostest_shim import VyOSUnitTestSHIM
 from vyos.configsession import ConfigSession
 from vyos.util import read_file
 
@@ -27,30 +27,26 @@ file_disable = '/etc/modprobe.d/vyos_disable_ipv6.conf'
 file_dad = '/proc/sys/net/ipv6/conf/all/accept_dad'
 file_multipath = '/proc/sys/net/ipv6/fib_multipath_hash_policy'
 
-class TestSystemIPv6(unittest.TestCase):
-    def setUp(self):
-        self.session = ConfigSession(os.getpid())
-
+class TestSystemIPv6(VyOSUnitTestSHIM.TestCase):
     def tearDown(self):
-        self.session.delete(base_path)
-        self.session.commit()
-        del self.session
+        self.cli_delete(base_path)
+        self.cli_commit()
 
     def test_system_ipv6_forwarding(self):
         # Test if IPv6 forwarding can be disabled globally, default is '1'
         # which means forwearding enabled
         self.assertEqual(read_file(file_forwarding), '1')
 
-        self.session.set(base_path + ['disable-forwarding'])
-        self.session.commit()
+        self.cli_set(base_path + ['disable-forwarding'])
+        self.cli_commit()
 
         self.assertEqual(read_file(file_forwarding), '0')
 
     def test_system_ipv6_disable(self):
         # Do not assign any IPv6 address on interfaces, this requires a reboot
         # which can not be tested, but we can read the config file :)
-        self.session.set(base_path + ['disable'])
-        self.session.commit()
+        self.cli_set(base_path + ['disable'])
+        self.cli_commit()
 
         # Verify configuration file
         self.assertEqual(read_file(file_disable), 'options ipv6 disable_ipv6=1')
@@ -61,8 +57,8 @@ class TestSystemIPv6(unittest.TestCase):
 
         # Do not assign any IPv6 address on interfaces, this requires a reboot
         # which can not be tested, but we can read the config file :)
-        self.session.set(base_path + ['strict-dad'])
-        self.session.commit()
+        self.cli_set(base_path + ['strict-dad'])
+        self.cli_commit()
 
         # Verify configuration file
         self.assertEqual(read_file(file_dad), '2')
@@ -73,8 +69,8 @@ class TestSystemIPv6(unittest.TestCase):
 
         # Do not assign any IPv6 address on interfaces, this requires a reboot
         # which can not be tested, but we can read the config file :)
-        self.session.set(base_path + ['multipath', 'layer4-hashing'])
-        self.session.commit()
+        self.cli_set(base_path + ['multipath', 'layer4-hashing'])
+        self.cli_commit()
 
         # Verify configuration file
         self.assertEqual(read_file(file_multipath), '1')
@@ -91,8 +87,8 @@ class TestSystemIPv6(unittest.TestCase):
         self.assertEqual(read_file(gc_thresh1), '1024')
 
         for size in [1024, 2048, 4096, 8192, 16384, 32768]:
-            self.session.set(base_path + ['neighbor', 'table-size', str(size)])
-            self.session.commit()
+            self.cli_set(base_path + ['neighbor', 'table-size', str(size)])
+            self.cli_commit()
 
             self.assertEqual(read_file(gc_thresh3), str(size))
             self.assertEqual(read_file(gc_thresh2), str(size // 2))