Pull the network settings from the actual dict

Turns out self._openstack_config is not the config dict. self.config is.
Also, return names.

Change-Id: Ib2013e737b506b3a2acd7aa7b7884240c25384c5

os_client_config/cloud_config.py

@@ -442,23 +442,25 @@ class CloudConfig(object):
     def get_external_networks(self):
         """Get list of network names for external networks."""
         return [
-            net['name'] for net in self._openstack_config['networks']
+            net['name'] for net in self.config['networks']
             if net['routes_externally']]
 
     def get_internal_networks(self):
         """Get list of network names for internal networks."""
         return [
-            net['name'] for net in self._openstack_config['networks']
+            net['name'] for net in self.config['networks']
             if not net['routes_externally']]
 
     def get_default_network(self):
         """Get network used for default interactions."""
-        for net in self._openstack_config['networks']:
+        for net in self.config['networks']:
             if net['default_interface']:
-                return net
+                return net['name']
+        return None
 
     def get_nat_destination(self):
         """Get network used for NAT destination."""
-        for net in self._openstack_config['networks']:
+        for net in self.config['networks']:
             if net['nat_destination']:
-                return net
+                return net['name']
+        return None

os_client_config/tests/base.py

@@ -90,6 +90,32 @@ USER_CONF = {
             },
             'region_name': 'test-region',
         },
+        '_test-cloud-networks_': {
+            'auth': {
+                'username': 'testuser',
+                'password': 'testpass',
+                'project_id': 12345,
+                'auth_url': 'http://example.com/v2',
+                'domain_id': '6789',
+                'project_domain_id': '123456789',
+            },
+            'networks': [{
+                'name': 'a-public',
+                'routes_externally': True,
+            }, {
+                'name': 'another-public',
+                'routes_externally': True,
+                'default_interface': True,
+            }, {
+                'name': 'a-private',
+                'routes_externally': False,
+            }, {
+                'name': 'another-private',
+                'routes_externally': False,
+                'nat_destination': True,
+                }],
+            'region_name': 'test-region',
+        },
         '_test_cloud_regions': {
             'auth': {
                 'username': 'testuser',

os_client_config/tests/test_config.py

@@ -187,6 +187,26 @@ class TestConfig(base.TestCase):
         self.assertEqual('user', cc.auth['username'])
         self.assertEqual('testpass', cc.auth['password'])
 
+    def test_get_one_cloud_networks(self):
+        c = config.OpenStackConfig(config_files=[self.cloud_yaml],
+                                   vendor_files=[self.vendor_yaml])
+        cc = c.get_one_cloud('_test-cloud-networks_')
+        self.assertEqual(
+            ['a-public', 'another-public'], cc.get_external_networks())
+        self.assertEqual(
+            ['a-private', 'another-private'], cc.get_internal_networks())
+        self.assertEqual('another-private', cc.get_nat_destination())
+        self.assertEqual('another-public', cc.get_default_network())
+
+    def test_get_one_cloud_no_networks(self):
+        c = config.OpenStackConfig(config_files=[self.cloud_yaml],
+                                   vendor_files=[self.vendor_yaml])
+        cc = c.get_one_cloud('_test-cloud-domain-scoped_')
+        self.assertEqual([], cc.get_external_networks())
+        self.assertEqual([], cc.get_internal_networks())
+        self.assertIsNone(cc.get_nat_destination())
+        self.assertIsNone(cc.get_default_network())
+
     def test_only_secure_yaml(self):
         c = config.OpenStackConfig(config_files=['nonexistent'],
                                    vendor_files=['nonexistent'],
@@ -201,6 +221,7 @@ class TestConfig(base.TestCase):
             ['_test-cloud-domain-id_',
              '_test-cloud-domain-scoped_',
              '_test-cloud-int-project_',
+             '_test-cloud-networks_',
              '_test-cloud_',
              '_test-cloud_no_region',
              '_test_cloud_hyphenated',