Create scenario test case for cloud nodes

Change-Id: I4d71137662d4fcafb51da7a73aa69b18e24306a2

tobiko/tests/scenario/cloud/test_nodes.py

@@ -0,0 +1,47 @@
+# Copyright (c) 2019 Red Hat
+# All Rights Reserved.
+#
+#    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.
+from __future__ import absolute_import
+
+import testtools
+
+import tobiko
+from tobiko.shell import ping
+from tobiko.shell import sh
+from tobiko.openstack import topology
+
+
+class OpenstackNodesTest(testtools.TestCase):
+
+    topology = tobiko.required_setup_fixture(
+        topology.get_default_openstack_topology_class())
+
+    def test_public_ips(self):
+        ips = dict()
+        for node in self.topology.nodes:
+            ping.ping(node.public_ip).assert_replied()
+            other = ips.setdefault(node.public_ip, node)
+            if node is not other:
+                tobiko.fail("Nodes {!r} and {!r} have the same IP: {!s}",
+                            node.name, other.name, node.public_ip)
+
+    def test_hostnames(self):
+        hostnames = dict()
+        for node in self.topology.nodes:
+            hostname = sh.get_hostname(ssh_client=node.ssh_client)
+            self.assertTrue(hostname.startswith(node.name))
+            other = hostnames.setdefault(hostname, node)
+            if node is not other:
+                tobiko.fail("Nodes {!r} and {!r} have the same hostname: {!r}",
+                            node.name, other.name, hostname)