Add get_keystone_token and get_keystone_endpoint functions

Change-Id: If82e2e9626908cefbe5466527a01d90b79337d92

tobiko/openstack/keystone/__init__.py

@@ -55,4 +55,6 @@ keystone_session = _session.keystone_session
 KeystoneSessionType = _session.KeystoneSessionType
 KeystoneSessionFixture = _session.KeystoneSessionFixture
 KeystoneSessionManager = _session.KeystoneSessionManager
+get_keystone_endpoint = _session.get_keystone_endpoint
 get_keystone_session = _session.get_keystone_session
+get_keystone_token = _session.get_keystone_token

tobiko/openstack/keystone/_session.py

@@ -17,6 +17,7 @@ import typing
 
 from keystoneauth1 import loading
 from keystoneauth1 import session as _session
+from keystoneauth1 import plugin as _plugin
 from oslo_log import log
 
 import tobiko
@@ -165,3 +166,18 @@ def get_keystone_session(
                                   init_session=init_session)
     tobiko.check_valid_type(session, KeystoneSessionFixture)
     return tobiko.setup_fixture(session).session
+
+
+def get_keystone_endpoint(
+        session: KeystoneSessionType = None,
+        auth: typing.Optional[_plugin.BaseAuthPlugin] = None,
+        **kwargs) -> \
+        typing.Optional[str]:
+    return keystone_session(session).get_endpoint(auth=auth, **kwargs)
+
+
+def get_keystone_token(
+        session: KeystoneSessionType = None,
+        auth: typing.Optional[_plugin.BaseAuthPlugin] = None) -> \
+        typing.Optional[str]:
+    return keystone_session(session).get_token(auth=auth)

tobiko/tests/functional/openstack/test_keystone.py

@@ -172,3 +172,12 @@ class KeystoneClientAPITest(testtools.TestCase):
         self.assertEqual(service.id, endpoint.service_id)
         self.assertEqual('public', endpoint.interface)
         self.assertTrue(endpoint.enabled)
+
+    def test_get_session_endpoint(self):
+        endpoint = keystone.get_keystone_endpoint(
+            service_type='identity')
+        self.assertIsInstance(endpoint, str)
+
+    def test_get_session_token(self):
+        token = keystone.get_keystone_token()
+        self.assertIsInstance(token, str)