Add command to unset information from Subnet-pools

This patch introduces the ``subnet pool unset`` command to
clear the pool prefix information from the subnet-pools.

Change-Id: I84b7259d6e26e695343d41cea6d807396faaf69a
Implements: blueprint network-property-unset

1 files changed, 39 insertions, 0 deletions

diff --git a/openstackclient/tests/network/v2/test_subnet_pool.py b/openstackclient/tests/network/v2/test_subnet_pool.py
index 7a96b30f..41b6170f 100644
--- a/openstackclient/tests/network/v2/test_subnet_pool.py
+++ b/openstackclient/tests/network/v2/test_subnet_pool.py
@@ -698,3 +698,42 @@ class TestShowSubnetPool(TestSubnetPool):
         )
         self.assertEqual(self.columns, columns)
         self.assertEqual(self.data, data)
+
+
+class TestUnsetSubnetPool(TestSubnetPool):
+
+    def setUp(self):
+        super(TestUnsetSubnetPool, self).setUp()
+        self._subnetpool = network_fakes.FakeSubnetPool.create_one_subnet_pool(
+            {'prefixes': ['10.0.10.0/24', '10.1.10.0/24',
+                          '10.2.10.0/24'], })
+        self.network.find_subnet_pool = mock.Mock(
+            return_value=self._subnetpool)
+        self.network.update_subnet_pool = mock.Mock(return_value=None)
+        # Get the command object to test
+        self.cmd = subnet_pool.UnsetSubnetPool(self.app, self.namespace)
+
+    def test_unset_subnet_pool(self):
+        arglist = [
+            '--pool-prefix', '10.0.10.0/24',
+            '--pool-prefix', '10.1.10.0/24',
+            self._subnetpool.name,
+        ]
+        verifylist = [('prefixes', ['10.0.10.0/24', '10.1.10.0/24'])]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+        result = self.cmd.take_action(parsed_args)
+        attrs = {'prefixes': ['10.2.10.0/24']}
+        self.network.update_subnet_pool.assert_called_once_with(
+            self._subnetpool, **attrs)
+        self.assertIsNone(result)
+
+    def test_unset_subnet_pool_prefix_not_existent(self):
+        arglist = [
+            '--pool-prefix', '10.100.1.1/25',
+            self._subnetpool.name,
+        ]
+        verifylist = [('prefixes', ['10.100.1.1/25'])]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+        self.assertRaises(exceptions.CommandError,
+                          self.cmd.take_action,
+                          parsed_args)