Add magpie tests

zaza/openstack/charm_tests/magpie/__init__.py

@@ -0,0 +1,15 @@
+# Copyright 2020 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Collection of code for setting up and testing Magpie."""

zaza/openstack/charm_tests/magpie/tests.py

@@ -0,0 +1,82 @@
+# Copyright 2020 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Encapsulate Magpie testing."""
+
+import logging
+
+import zaza
+
+import zaza.model
+import zaza.openstack.charm_tests.test_utils as test_utils
+
+
+class MagpieTest(test_utils.BaseCharmTest):
+    """Base Magpie tests."""
+
+    @classmethod
+    def setUpClass(cls):
+        """Run class setup for Magpie charm operation tests."""
+        super(MagpieTest, cls).setUpClass()
+        unit_names = sorted(
+            [i.entity_id
+             for i in zaza.model.get_units('magpie')])
+        cls.test_unit_0 = unit_names[0]
+        cls.test_unit_1 = unit_names[1]
+
+    def test_break_dns_single(self):
+        """Check DNS failure is reflected in workload status."""
+        zaza.model.run_on_unit(
+            self.test_unit_0,
+            'mv /etc/resolv.conf /etc/resolv.conf.bak')
+        zaza.model.run_on_unit(
+            self.test_unit_0,
+            './hooks/update-status')
+        zaza.model.block_until_unit_wl_message_match(
+            self.test_unit_0,
+            '.*rev dns failed.*')
+        logging.info('Restoring /etc/resolv.conf')
+        zaza.model.run_on_unit(
+            self.test_unit_0,
+            'mv /etc/resolv.conf.bak /etc/resolv.conf')
+        logging.info('Updating status')
+        zaza.model.run_on_unit(
+            self.test_unit_0,
+            './hooks/update-status')
+
+    def test_break_ping_single(self):
+        """Check ping failure is reflected in workload status."""
+        icmp = "iptables {} INPUT -p icmp --icmp-type echo-request -j REJECT"
+        logging.info('Blocking ping on {}'.format(self.test_unit_1))
+        zaza.model.run_on_unit(
+            self.test_unit_1,
+            icmp.format('--append'))
+        zaza.model.run_on_unit(
+            self.test_unit_0,
+            './hooks/update-status')
+        logging.info('Checking status on {}'.format(self.test_unit_0))
+        zaza.model.block_until_unit_wl_message_match(
+            self.test_unit_0,
+            '.*icmp failed.*')
+        logging.info('Allowing ping on {}'.format(self.test_unit_1))
+        zaza.model.run_on_unit(
+            self.test_unit_1,
+            icmp.format('--delete'))
+        zaza.model.run_on_unit(
+            self.test_unit_0,
+            './hooks/update-status')
+        logging.info('Checking status on {}'.format(self.test_unit_0))
+        zaza.model.block_until_unit_wl_message_match(
+            self.test_unit_0,
+            '.*icmp ok.*')