Add functional tests for IP availability

This patch adds functional tests for IP availability

Partially-Implements: blueprint neutron-ip-capacity
Change-Id: I1c1dc01801707fe8f0dc3c976e5d345d2b0db0ec

Author: manjeetbhati

functional/tests/network/v2/test_ip_availability.py

@@ -0,0 +1,53 @@
+#    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.
+
+import uuid
+
+from functional.common import test
+
+
+class IPAvailabilityTests(test.TestCase):
+    """Functional tests for IP availability. """
+    NAME = uuid.uuid4().hex
+    NETWORK_NAME = uuid.uuid4().hex
+    FIELDS = ['network_name']
+
+    @classmethod
+    def setUpClass(cls):
+        # Create a network for the subnet.
+        cls.openstack('network create ' + cls.NETWORK_NAME)
+        opts = cls.get_show_opts(['name'])
+        raw_output = cls.openstack(
+            'subnet create --network ' + cls.NETWORK_NAME +
+            ' --subnet-range 10.10.10.0/24 ' +
+            cls.NAME + opts
+        )
+        expected = cls.NAME + '\n'
+        cls.assertOutput(expected, raw_output)
+
+    @classmethod
+    def tearDownClass(cls):
+        raw_subnet = cls.openstack('subnet delete ' + cls.NAME)
+        raw_network = cls.openstack('network delete ' + cls.NETWORK_NAME)
+        cls.assertOutput('', raw_subnet)
+        cls.assertOutput('', raw_network)
+
+    def test_ip_availability_list(self):
+        opts = ' -f csv -c "Network Name"'
+        raw_output = self.openstack('ip availability list' + opts)
+        self.assertIn(self.NETWORK_NAME, raw_output)
+
+    def test_ip_availability_show(self):
+        opts = self.get_show_opts(self.FIELDS)
+        raw_output = self.openstack(
+            'ip availability show ' + self.NETWORK_NAME + opts)
+        self.assertEqual(self.NETWORK_NAME + "\n", raw_output)